externals: Update fmt to v7.0.3

Keeps the library up to date.
This commit is contained in:
Lioncash 2020-09-19 14:25:26 -04:00
commit 63802395c7
61 changed files with 3833 additions and 3091 deletions

View file

@ -15,6 +15,7 @@ bin/
/CMakeScripts
/doc/doxyxml
/doc/html
/doc/node_modules
virtualenv
/Testing
/install_manifest.txt

View file

@ -24,15 +24,23 @@ function(join result_var)
set(${result_var} "${result}" PARENT_SCOPE)
endfunction()
include(CMakeParseArguments)
# Sets a cache variable with a docstring joined from multiple arguments:
# set(<variable> <value>... CACHE <type> <docstring>...)
# This allows splitting a long docstring for readability.
function(set_verbose)
cmake_parse_arguments(SET_VERBOSE "" "" "CACHE" ${ARGN})
list(GET SET_VERBOSE_CACHE 0 type)
list(REMOVE_AT SET_VERBOSE_CACHE 0)
join(doc ${SET_VERBOSE_CACHE})
set(${SET_VERBOSE_UNPARSED_ARGUMENTS} CACHE ${type} ${doc})
# cmake_parse_arguments is broken in CMake 3.4 (cannot parse CACHE) so use
# list instead.
list(GET ARGN 0 var)
list(REMOVE_AT ARGN 0)
list(GET ARGN 0 val)
list(REMOVE_AT ARGN 0)
list(REMOVE_AT ARGN 0)
list(GET ARGN 0 type)
list(REMOVE_AT ARGN 0)
join(doc ${ARGN})
set(${var} ${val} CACHE ${type} ${doc})
endfunction()
# Set the default CMAKE_BUILD_TYPE to Release.
@ -44,6 +52,12 @@ if (MASTER_PROJECT AND NOT CMAKE_BUILD_TYPE)
"CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
endif ()
project(FMT CXX)
include(GNUInstallDirs)
set_verbose(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR} CACHE STRING
"Installation directory for include files, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
option(FMT_PEDANTIC "Enable extra warnings and expensive tests." OFF)
option(FMT_WERROR "Halt the compilation with an error on compiler warnings."
OFF)
@ -54,8 +68,7 @@ option(FMT_INSTALL "Generate the install target." ${MASTER_PROJECT})
option(FMT_TEST "Generate the test target." ${MASTER_PROJECT})
option(FMT_FUZZ "Generate the fuzz target." OFF)
option(FMT_CUDA_TEST "Generate the cuda-test target." OFF)
project(FMT CXX)
option(FMT_OS "Include core requiring OS (Windows/Posix) " ON)
# Get version from core.h
file(READ include/fmt/core.h core_h)
@ -81,6 +94,7 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
include(cxx14)
include(CheckCXXCompilerFlag)
include(JoinPaths)
list(FIND CMAKE_CXX_COMPILE_FEATURES "cxx_variadic_templates" index)
if (${index} GREATER -1)
@ -173,7 +187,11 @@ endfunction()
# Define the fmt library, its includes and the needed defines.
add_headers(FMT_HEADERS chrono.h color.h compile.h core.h format.h format-inl.h
locale.h os.h ostream.h posix.h printf.h ranges.h)
set(FMT_SOURCES src/format.cc src/os.cc)
if (FMT_OS)
set(FMT_SOURCES src/format.cc src/os.cc)
else()
set(FMT_SOURCES src/format.cc)
endif ()
add_library(fmt ${FMT_SOURCES} ${FMT_HEADERS} README.rst ChangeLog.rst)
add_library(fmt::fmt ALIAS fmt)
@ -182,6 +200,10 @@ if (HAVE_STRTOD_L)
target_compile_definitions(fmt PUBLIC FMT_LOCALE)
endif ()
if (MINGW)
target_compile_options(fmt PUBLIC "-Wa,-mbig-obj")
endif ()
if (FMT_WERROR)
target_compile_options(fmt PRIVATE ${WERROR_FLAG})
endif ()
@ -193,7 +215,7 @@ target_compile_features(fmt INTERFACE ${FMT_REQUIRED_FEATURES})
target_include_directories(fmt PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include>)
$<INSTALL_INTERFACE:${FMT_INC_DIR}>)
set(FMT_DEBUG_POSTFIX d CACHE STRING "Debug library postfix.")
@ -209,7 +231,7 @@ if (CMAKE_BUILD_TYPE STREQUAL "Debug")
endif ()
if (BUILD_SHARED_LIBS)
if (UNIX AND NOT APPLE AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
if (UNIX AND NOT APPLE AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "SunOS" AND NOT EMSCRIPTEN)
# Fix rpmlint warning:
# unused-direct-shlib-dependency /usr/lib/libformat.so.1.1.0 /lib/libm.so.6.
target_link_libraries(fmt -Wl,--as-needed)
@ -228,42 +250,36 @@ target_compile_features(fmt-header-only INTERFACE ${FMT_REQUIRED_FEATURES})
target_include_directories(fmt-header-only INTERFACE
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include>)
$<INSTALL_INTERFACE:${FMT_INC_DIR}>)
# Install targets.
if (FMT_INSTALL)
include(GNUInstallDirs)
include(CMakePackageConfigHelpers)
set_verbose(FMT_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/fmt CACHE STRING
"Installation directory for cmake files, relative to "
"${CMAKE_INSTALL_PREFIX}.")
"Installation directory for cmake files, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
set(version_config ${PROJECT_BINARY_DIR}/fmt-config-version.cmake)
set(project_config ${PROJECT_BINARY_DIR}/fmt-config.cmake)
set(pkgconfig ${PROJECT_BINARY_DIR}/fmt.pc)
set(targets_export_name fmt-targets)
set (INSTALL_TARGETS fmt)
if (TARGET fmt-header-only)
set(INSTALL_TARGETS ${INSTALL_TARGETS} fmt-header-only)
endif ()
set_verbose(FMT_LIB_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING
"Installation directory for libraries, relative to "
"${CMAKE_INSTALL_PREFIX}.")
set_verbose(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR}/fmt CACHE STRING
"Installation directory for include files, relative to "
"${CMAKE_INSTALL_PREFIX}.")
"Installation directory for libraries, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
set_verbose(FMT_PKGCONFIG_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig CACHE PATH
"Installation directory for pkgconfig (.pc) files, relative to "
"${CMAKE_INSTALL_PREFIX}.")
"Installation directory for pkgconfig (.pc) files, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
# Generate the version, config and target files into the build directory.
write_basic_package_version_file(
${version_config}
VERSION ${FMT_VERSION}
COMPATIBILITY AnyNewerVersion)
join_paths(libdir_for_pc_file "\${exec_prefix}" "${FMT_LIB_DIR}")
join_paths(includedir_for_pc_file "\${prefix}" "${FMT_INC_DIR}")
configure_file(
"${PROJECT_SOURCE_DIR}/support/cmake/fmt.pc.in"
"${pkgconfig}"
@ -272,6 +288,8 @@ if (FMT_INSTALL)
${PROJECT_SOURCE_DIR}/support/cmake/fmt-config.cmake.in
${project_config}
INSTALL_DESTINATION ${FMT_CMAKE_DIR})
set(INSTALL_TARGETS fmt fmt-header-only)
# Use a namespace because CMake provides better diagnostics for namespaced
# imported targets.
export(TARGETS ${INSTALL_TARGETS} NAMESPACE fmt::
@ -292,7 +310,7 @@ if (FMT_INSTALL)
install(FILES $<TARGET_PDB_FILE:${INSTALL_TARGETS}>
DESTINATION ${FMT_LIB_DIR} OPTIONAL)
install(FILES ${FMT_HEADERS} DESTINATION ${FMT_INC_DIR})
install(FILES ${FMT_HEADERS} DESTINATION "${FMT_INC_DIR}/fmt")
install(FILES "${pkgconfig}" DESTINATION "${FMT_PKGCONFIG_DIR}")
endif ()
@ -308,6 +326,7 @@ endif ()
# Control fuzzing independent of the unit tests.
if (FMT_FUZZ)
add_subdirectory(test/fuzzing)
target_compile_definitions(fmt PUBLIC FMT_FUZZ)
endif ()
set(gitignore ${PROJECT_SOURCE_DIR}/.gitignore)

View file

@ -1,3 +1,349 @@
7.0.3 - 2020-08-06
------------------
* Worked around broken ``numeric_limits`` for 128-bit integers
(`#1787 <https://github.com/fmtlib/fmt/issues/1787>`_).
* Added error reporting on missing named arguments
(`#1796 <https://github.com/fmtlib/fmt/issues/1796>`_).
* Stopped using 128-bit integers with clang-cl
(`#1800 <https://github.com/fmtlib/fmt/pull/1800>`_).
Thanks `@Kingcom <https://github.com/Kingcom>`_.
* Fixed issues in locale-specific integer formatting
(`#1782 <https://github.com/fmtlib/fmt/issues/1782>`_,
`#1801 <https://github.com/fmtlib/fmt/issues/1801>`_).
7.0.2 - 2020-07-29
------------------
* Worked around broken ``numeric_limits`` for 128-bit integers
(`#1725 <https://github.com/fmtlib/fmt/issues/1725>`_).
* Fixed compatibility with CMake 3.4
(`#1779 <https://github.com/fmtlib/fmt/issues/1779>`_).
* Fixed handling of digit separators in locale-specific formatting
(`#1782 <https://github.com/fmtlib/fmt/issues/1782>`_).
7.0.1 - 2020-07-07
------------------
* Updated the inline version namespace name.
* Worked around a gcc bug in mangling of alias templates
(`#1753 <https://github.com/fmtlib/fmt/issues/1753>`_).
* Fixed a linkage error on Windows
(`#1757 <https://github.com/fmtlib/fmt/issues/1757>`_).
Thanks `@Kurkin (Dmitry Kurkin) <https://github.com/Kurkin>`_.
* Fixed minor issues with the documentation.
7.0.0 - 2020-07-05
------------------
* Reduced the library size. For example, on macOS a stripped test binary
statically linked with {fmt} `shrank from ~368k to less than 100k
<http://www.zverovich.net/2020/05/21/reducing-library-size.html>`_.
* Added a simpler and more efficient `format string compilation API
<https://fmt.dev/dev/api.html#compile-api>`_:
.. code:: c++
#include <fmt/compile.h>
// Converts 42 into std::string using the most efficient method and no
// runtime format string processing.
std::string s = fmt::format(FMT_COMPILE("{}"), 42);
The old ``fmt::compile`` API is now deprecated.
* Optimized integer formatting: ``format_to`` with format string compilation
and a stack-allocated buffer is now `faster than to_chars on both
libc++ and libstdc++
<http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_.
* Optimized handling of small format strings. For example,
.. code:: c++
fmt::format("Result: {}: ({},{},{},{})", str1, str2, str3, str4, str5)
is now ~40% faster (`#1685 <https://github.com/fmtlib/fmt/issues/1685>`_).
* Applied extern templates to improve compile times when using the core API
and ``fmt/format.h`` (`#1452 <https://github.com/fmtlib/fmt/issues/1452>`_).
For example, on macOS with clang the compile time of a test translation unit
dropped from 2.3s to 0.3s with ``-O2`` and from 0.6s to 0.3s with the default
settings (``-O0``).
Before (``-O2``)::
% time c++ -c test.cc -I include -std=c++17 -O2
c++ -c test.cc -I include -std=c++17 -O2 2.22s user 0.08s system 99% cpu 2.311 total
After (``-O2``)::
% time c++ -c test.cc -I include -std=c++17 -O2
c++ -c test.cc -I include -std=c++17 -O2 0.26s user 0.04s system 98% cpu 0.303 total
Before (default)::
% time c++ -c test.cc -I include -std=c++17
c++ -c test.cc -I include -std=c++17 0.53s user 0.06s system 98% cpu 0.601 total
After (default)::
% time c++ -c test.cc -I include -std=c++17
c++ -c test.cc -I include -std=c++17 0.24s user 0.06s system 98% cpu 0.301 total
It is still recommended to use ``fmt/core.h`` instead of ``fmt/format.h`` but
the compile time difference is now smaller. Thanks
`@alex3d <https://github.com/alex3d>`_ for the suggestion.
* Named arguments are now stored on stack (no dynamic memory allocations) and
the compiled code is more compact and efficient. For example
.. code:: c++
#include <fmt/core.h>
int main() {
fmt::print("The answer is {answer}\n", fmt::arg("answer", 42));
}
compiles to just (`godbolt <https://godbolt.org/z/NcfEp_>`__)
.. code:: asm
.LC0:
.string "answer"
.LC1:
.string "The answer is {answer}\n"
main:
sub rsp, 56
mov edi, OFFSET FLAT:.LC1
mov esi, 23
movabs rdx, 4611686018427387905
lea rax, [rsp+32]
lea rcx, [rsp+16]
mov QWORD PTR [rsp+8], 1
mov QWORD PTR [rsp], rax
mov DWORD PTR [rsp+16], 42
mov QWORD PTR [rsp+32], OFFSET FLAT:.LC0
mov DWORD PTR [rsp+40], 0
call fmt::v6::vprint(fmt::v6::basic_string_view<char>,
fmt::v6::format_args)
xor eax, eax
add rsp, 56
ret
.L.str.1:
.asciz "answer"
* Implemented compile-time checks for dynamic width and precision
(`#1614 <https://github.com/fmtlib/fmt/issues/1614>`_):
.. code:: c++
#include <fmt/format.h>
int main() {
fmt::print(FMT_STRING("{0:{1}}"), 42);
}
now gives a compilation error because argument 1 doesn't exist::
In file included from test.cc:1:
include/fmt/format.h:2726:27: error: constexpr variable 'invalid_format' must be
initialized by a constant expression
FMT_CONSTEXPR_DECL bool invalid_format =
^
...
include/fmt/core.h:569:26: note: in call to
'&checker(s, {}).context_->on_error(&"argument not found"[0])'
if (id >= num_args_) on_error("argument not found");
^
* Added sentinel support to ``fmt::join``
(`#1689 <https://github.com/fmtlib/fmt/pull/1689>`_)
.. code:: c++
struct zstring_sentinel {};
bool operator==(const char* p, zstring_sentinel) { return *p == '\0'; }
bool operator!=(const char* p, zstring_sentinel) { return *p != '\0'; }
struct zstring {
const char* p;
const char* begin() const { return p; }
zstring_sentinel end() const { return {}; }
};
auto s = fmt::format("{}", fmt::join(zstring{"hello"}, "_"));
// s == "h_e_l_l_o"
Thanks `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_.
* Added support for named args, ``clear`` and ``reserve`` to
``dynamic_format_arg_store``
(`#1655 <https://github.com/fmtlib/fmt/issues/1655>`_,
`#1663 <https://github.com/fmtlib/fmt/pull/1663>`_,
`#1674 <https://github.com/fmtlib/fmt/pull/1674>`_,
`#1677 <https://github.com/fmtlib/fmt/pull/1677>`_).
Thanks `@vsolontsov-ll (Vladimir Solontsov)
<https://github.com/vsolontsov-ll>`_.
* Added support for the ``'c'`` format specifier to integral types for
compatibility with ``std::format``
(`#1652 <https://github.com/fmtlib/fmt/issues/1652>`_).
* Replaced the ``'n'`` format specifier with ``'L'`` for compatibility with
``std::format`` (`#1624 <https://github.com/fmtlib/fmt/issues/1624>`_).
The ``'n'`` specifier can be enabled via the ``FMT_DEPRECATED_N_SPECIFIER``
macro.
* The ``'='`` format specifier is now disabled by default for compatibility with
``std::format``. It can be enabled via the ``FMT_DEPRECATED_NUMERIC_ALIGN``
macro.
* Removed the following deprecated APIs:
* ``FMT_STRING_ALIAS`` and ``fmt`` macros - replaced by ``FMT_STRING``
* ``fmt::basic_string_view::char_type`` - replaced by
``fmt::basic_string_view::value_type``
* ``convert_to_int``
* ``format_arg_store::types``
* ``*parse_context`` - replaced by ``*format_parse_context``
* ``FMT_DEPRECATED_INCLUDE_OS``
* ``FMT_DEPRECATED_PERCENT`` - incompatible with ``std::format``
* ``*writer`` - replaced by compiled format API
* Renamed the ``internal`` namespace to ``detail``
(`#1538 <https://github.com/fmtlib/fmt/issues/1538>`_). The former is still
provided as an alias if the ``FMT_USE_INTERNAL`` macro is defined.
* Improved compatibility between ``fmt::printf`` with the standard specs
(`#1595 <https://github.com/fmtlib/fmt/issues/1595>`_,
`#1682 <https://github.com/fmtlib/fmt/pull/1682>`_,
`#1683 <https://github.com/fmtlib/fmt/pull/1683>`_,
`#1687 <https://github.com/fmtlib/fmt/pull/1687>`_,
`#1699 <https://github.com/fmtlib/fmt/pull/1699>`_).
Thanks `@rimathia <https://github.com/rimathia>`_.
* Fixed handling of ``operator<<`` overloads that use ``copyfmt``
(`#1666 <https://github.com/fmtlib/fmt/issues/1666>`_).
* Added the ``FMT_OS`` CMake option to control inclusion of OS-specific APIs
in the fmt target. This can be useful for embedded platforms
(`#1654 <https://github.com/fmtlib/fmt/issues/1654>`_,
`#1656 <https://github.com/fmtlib/fmt/pull/1656>`_).
Thanks `@kwesolowski (Krzysztof Wesolowski)
<https://github.com/kwesolowski>`_.
* Replaced ``FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION`` with the ``FMT_FUZZ``
macro to prevent interferring with fuzzing of projects using {fmt}
(`#1650 <https://github.com/fmtlib/fmt/pull/1650>`_).
Thanks `@asraa (Asra Ali) <https://github.com/asraa>`_.
* Fixed compatibility with emscripten
(`#1636 <https://github.com/fmtlib/fmt/issues/1636>`_,
`#1637 <https://github.com/fmtlib/fmt/pull/1637>`_).
Thanks `@ArthurSonzogni (Arthur Sonzogni)
<https://github.com/ArthurSonzogni>`_.
* Improved documentation
(`#704 <https://github.com/fmtlib/fmt/issues/704>`_,
`#1643 <https://github.com/fmtlib/fmt/pull/1643>`_,
`#1660 <https://github.com/fmtlib/fmt/pull/1660>`_,
`#1681 <https://github.com/fmtlib/fmt/pull/1681>`_,
`#1691 <https://github.com/fmtlib/fmt/pull/1691>`_,
`#1706 <https://github.com/fmtlib/fmt/pull/1706>`_,
`#1714 <https://github.com/fmtlib/fmt/pull/1714>`_,
`#1721 <https://github.com/fmtlib/fmt/pull/1721>`_,
`#1739 <https://github.com/fmtlib/fmt/pull/1739>`_,
`#1740 <https://github.com/fmtlib/fmt/pull/1740>`_,
`#1741 <https://github.com/fmtlib/fmt/pull/1741>`_,
`#1751 <https://github.com/fmtlib/fmt/pull/1751>`_).
Thanks `@senior7515 (Alexander Gallego) <https://github.com/senior7515>`_,
`@lsr0 (Lindsay Roberts) <https://github.com/lsr0>`_,
`@puetzk (Kevin Puetz) <https://github.com/puetzk>`_,
`@fpelliccioni (Fernando Pelliccioni) <https://github.com/fpelliccioni>`_,
Alexey Kuzmenko, `@jelly (jelle van der Waa) <https://github.com/jelly>`_,
`@claremacrae (Clare Macrae) <https://github.com/claremacrae>`_,
`@jiapengwen (文佳鹏) <https://github.com/jiapengwen>`_,
`@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_,
`@alexey-milovidov <https://github.com/alexey-milovidov>`_.
* Implemented various build configuration fixes and improvements
(`#1603 <https://github.com/fmtlib/fmt/pull/1603>`_,
`#1657 <https://github.com/fmtlib/fmt/pull/1657>`_,
`#1702 <https://github.com/fmtlib/fmt/pull/1702>`_,
`#1728 <https://github.com/fmtlib/fmt/pull/1728>`_).
Thanks `@scramsby (Scott Ramsby) <https://github.com/scramsby>`_,
`@jtojnar (Jan Tojnar) <https://github.com/jtojnar>`_,
`@orivej (Orivej Desh) <https://github.com/orivej>`_,
`@flagarde <https://github.com/flagarde>`_.
* Fixed various warnings and compilation issues
(`#1616 <https://github.com/fmtlib/fmt/pull/1616>`_,
`#1620 <https://github.com/fmtlib/fmt/issues/1620>`_,
`#1622 <https://github.com/fmtlib/fmt/issues/1622>`_,
`#1625 <https://github.com/fmtlib/fmt/issues/1625>`_,
`#1627 <https://github.com/fmtlib/fmt/pull/1627>`_,
`#1628 <https://github.com/fmtlib/fmt/issues/1628>`_,
`#1629 <https://github.com/fmtlib/fmt/pull/1629>`_,
`#1631 <https://github.com/fmtlib/fmt/issues/1631>`_,
`#1633 <https://github.com/fmtlib/fmt/pull/1633>`_,
`#1649 <https://github.com/fmtlib/fmt/pull/1649>`_,
`#1658 <https://github.com/fmtlib/fmt/issues/1658>`_,
`#1661 <https://github.com/fmtlib/fmt/pull/1661>`_,
`#1667 <https://github.com/fmtlib/fmt/pull/1667>`_,
`#1668 <https://github.com/fmtlib/fmt/issues/1668>`_,
`#1669 <https://github.com/fmtlib/fmt/pull/1669>`_,
`#1692 <https://github.com/fmtlib/fmt/issues/1692>`_,
`#1696 <https://github.com/fmtlib/fmt/pull/1696>`_,
`#1697 <https://github.com/fmtlib/fmt/pull/1697>`_,
`#1707 <https://github.com/fmtlib/fmt/issues/1707>`_,
`#1712 <https://github.com/fmtlib/fmt/pull/1712>`_,
`#1716 <https://github.com/fmtlib/fmt/pull/1716>`_,
`#1722 <https://github.com/fmtlib/fmt/pull/1722>`_,
`#1724 <https://github.com/fmtlib/fmt/issues/1724>`_,
`#1729 <https://github.com/fmtlib/fmt/pull/1729>`_,
`#1738 <https://github.com/fmtlib/fmt/pull/1738>`_,
`#1742 <https://github.com/fmtlib/fmt/issues/1742>`_,
`#1743 <https://github.com/fmtlib/fmt/issues/1743>`_,
`#1744 <https://github.com/fmtlib/fmt/pull/1744>`_,
`#1747 <https://github.com/fmtlib/fmt/issues/1747>`_,
`#1750 <https://github.com/fmtlib/fmt/pull/1750>`_).
Thanks `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_,
`@gabime (Gabi Melman) <https://github.com/gabime>`_,
`@johnor (Johan) <https://github.com/johnor>`_,
`@Kurkin (Dmitry Kurkin) <https://github.com/Kurkin>`_,
`@invexed (James Beach) <https://github.com/invexed>`_,
`@peterbell10 <https://github.com/peterbell10>`_,
`@daixtrose (Markus Werle) <https://github.com/daixtrose>`_,
`@petrutlucian94 (Lucian Petrut) <https://github.com/petrutlucian94>`_,
`@Neargye (Daniil Goncharov) <https://github.com/Neargye>`_,
`@ambitslix (Attila M. Szilagyi) <https://github.com/ambitslix>`_,
`@gabime (Gabi Melman) <https://github.com/gabime>`_,
`@erthink (Leonid Yuriev) <https://github.com/erthink>`_,
`@tohammer (Tobias Hammer) <https://github.com/tohammer>`_,
`@0x8000-0000 (Florin Iucha) <https://github.com/0x8000-0000>`_.
6.2.1 - 2020-05-09
------------------
* Fixed ostream support in ``sprintf``
(`#1631 <https://github.com/fmtlib/fmt/issues/1631>`_).
* Fixed type detection when using implicit conversion to ``string_view`` and
ostream ``operator<<`` inconsistently
(`#1662 <https://github.com/fmtlib/fmt/issues/1662>`_).
6.2.0 - 2020-04-05
------------------
@ -24,7 +370,7 @@
if ``S`` is not formattable.
* Reduced library size by ~10%.
* Reduced the library size by ~10%.
* Always print decimal point if ``#`` is specified
(`#1476 <https://github.com/fmtlib/fmt/issues/1476>`_,
@ -587,16 +933,16 @@
#include <fmt/compile.h>
auto f = fmt::compile<int>("{}");
std::string s = fmt::format(f, 42); // can be called multiple times to format
// different values
std::string s = fmt::format(f, 42); // can be called multiple times to
// format different values
// s == "42"
It moves the cost of parsing a format string outside of the format function
which can be beneficial when identically formatting many objects of the same
types. Thanks `@stryku (Mateusz Janek) <https://github.com/stryku>`_.
* Added the ``%`` format specifier that formats floating-point values as
percentages (`#1060 <https://github.com/fmtlib/fmt/pull/1060>`_,
* Added experimental ``%`` format specifier that formats floating-point values
as percentages (`#1060 <https://github.com/fmtlib/fmt/pull/1060>`_,
`#1069 <https://github.com/fmtlib/fmt/pull/1069>`_,
`#1071 <https://github.com/fmtlib/fmt/pull/1071>`_):

View file

@ -9,7 +9,9 @@
.. image:: https://oss-fuzz-build-logs.storage.googleapis.com/badges/libfmt.svg
:alt: fmt is continuously fuzzed att oss-fuzz
:target: https://bugs.chromium.org/p/oss-fuzz/issues/list?colspec=ID%20Type%20Component%20Status%20Proj%20Reported%20Owner%20Summary&q=proj%3Dlibfmt&can=1
:target: https://bugs.chromium.org/p/oss-fuzz/issues/list?\
colspec=ID%20Type%20Component%20Status%20Proj%20Reported%20Owner%20\
Summary&q=proj%3Dlibfmt&can=1
.. image:: https://img.shields.io/badge/stackoverflow-fmt-blue.svg
:alt: Ask questions at StackOverflow with the tag fmt
@ -20,42 +22,46 @@ It can be used as a safe and fast alternative to (s)printf and iostreams.
`Documentation <https://fmt.dev/latest/>`__
Q&A: ask questions on `StackOverflow with the tag fmt <https://stackoverflow.com/questions/tagged/fmt>`_.
Q&A: ask questions on `StackOverflow with the tag fmt
<https://stackoverflow.com/questions/tagged/fmt>`_.
Features
--------
* Replacement-based `format API <https://fmt.dev/dev/api.html>`_ with
positional arguments for localization.
* Simple `format API <https://fmt.dev/dev/api.html>`_ with positional arguments
for localization
* Implementation of `C++20 std::format
<https://en.cppreference.com/w/cpp/utility/format>`__
* `Format string syntax <https://fmt.dev/dev/syntax.html>`_ similar to the one
of `str.format <https://docs.python.org/3/library/stdtypes.html#str.format>`_
in Python.
of Python's
`format <https://docs.python.org/3/library/stdtypes.html#str.format>`_
* Safe `printf implementation
<https://fmt.dev/latest/api.html#printf-formatting>`_ including
the POSIX extension for positional arguments.
* Implementation of `C++20 std::format <https://en.cppreference.com/w/cpp/utility/format>`__.
* Support for user-defined types.
the POSIX extension for positional arguments
* Extensibility: support for user-defined types
* High performance: faster than common standard library implementations of
`printf <https://en.cppreference.com/w/cpp/io/c/fprintf>`_ and
iostreams. See `Speed tests`_ and `Fast integer to string conversion in C++
<http://zverovich.net/2013/09/07/integer-to-string-conversion-in-cplusplus.html>`_.
`printf <https://en.cppreference.com/w/cpp/io/c/fprintf>`_,
iostreams, ``to_string`` and ``to_chars``, see `Speed tests`_ and
`Converting a hundred million integers to strings per second
<http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_
* Small code size both in terms of source code (the minimum configuration
consists of just three header files, ``core.h``, ``format.h`` and
``format-inl.h``) and compiled code. See `Compile time and code bloat`_.
``format-inl.h``) and compiled code. See `Compile time and code bloat`_
* Reliability: the library has an extensive set of `unit tests
<https://github.com/fmtlib/fmt/tree/master/test>`_ and is continuously fuzzed.
<https://github.com/fmtlib/fmt/tree/master/test>`_ and is continuously fuzzed
* Safety: the library is fully type safe, errors in format strings can be
reported at compile time, automatic memory management prevents buffer overflow
errors.
errors
* Ease of use: small self-contained code base, no external dependencies,
permissive MIT `license
<https://github.com/fmtlib/fmt/blob/master/LICENSE.rst>`_
* `Portability <https://fmt.dev/latest/index.html#portability>`_ with
consistent output across platforms and support for older compilers.
consistent output across platforms and support for older compilers
* Clean warning-free codebase even on high warning levels
(``-Wall -Wextra -pedantic``).
* Support for wide strings.
* Optional header-only configuration enabled with the ``FMT_HEADER_ONLY`` macro.
(``-Wall -Wextra -pedantic``)
* Locale-independence by default
* Support for wide strings
* Optional header-only configuration enabled with the ``FMT_HEADER_ONLY`` macro
See the `documentation <https://fmt.dev/latest/>`_ for more details.
@ -66,37 +72,49 @@ Print ``Hello, world!`` to ``stdout``:
.. code:: c++
fmt::print("Hello, {}!", "world"); // Python-like format string syntax
fmt::printf("Hello, %s!", "world"); // printf format string syntax
#include <fmt/core.h>
Format a string and use positional arguments:
int main() {
fmt::print("Hello, world!\n");
}
Format a string:
.. code:: c++
std::string s = fmt::format("The answer is {}.", 42);
// s == "The answer is 42."
Format a string using positional arguments:
.. code:: c++
std::string s = fmt::format("I'd rather be {1} than {0}.", "right", "happy");
// s == "I'd rather be happy than right."
Print a chrono duration:
.. code:: c++
#include <fmt/chrono.h>
int main() {
using namespace std::chrono_literals;
fmt::print("Elapsed time: {}", 42ms);
}
prints "Elapsed time: 42ms".
Check a format string at compile time:
.. code:: c++
// test.cc
#include <fmt/format.h>
std::string s = format(FMT_STRING("{2}"), 42);
std::string s = format(FMT_STRING("{:d}"), "hello");
.. code::
$ c++ -Iinclude -std=c++14 test.cc
...
test.cc:4:17: note: in instantiation of function template specialization 'fmt::v5::format<S, int>' requested here
std::string s = format(FMT_STRING("{2}"), 42);
^
include/fmt/core.h:778:19: note: non-constexpr function 'on_error' cannot be used in a constant expression
ErrorHandler::on_error(message);
^
include/fmt/format.h:2226:16: note: in call to '&checker.context_->on_error(&"argument index out of range"[0])'
context_.on_error("argument index out of range");
^
gives a compile-time error because ``d`` is an invalid format specifier for a
string.
Use {fmt} as a safe portable replacement for ``itoa``
(`godbolt <https://godbolt.org/g/NXmpU4>`_):
@ -113,7 +131,7 @@ Format objects of user-defined types via a simple `extension API
.. code:: c++
#include "fmt/format.h"
#include <fmt/format.h>
struct date {
int year, month, day;
@ -174,15 +192,15 @@ Folly Format folly::format 2.23
{fmt} is the fastest of the benchmarked methods, ~35% faster than ``printf``.
The above results were generated by building ``tinyformat_test.cpp`` on macOS
10.14.6 with ``clang++ -O3 -DSPEED_TEST -DHAVE_FORMAT``, and taking the best of
three runs. In the test, the format string ``"%0.10f:%04d:%+g:%s:%p:%c:%%\n"``
10.14.6 with ``clang++ -O3 -DNDEBUG -DSPEED_TEST -DHAVE_FORMAT``, and taking the
best of three runs. In the test, the format string ``"%0.10f:%04d:%+g:%s:%p:%c:%%\n"``
or equivalent is filled 2,000,000 times with output sent to ``/dev/null``; for
further details refer to the `source
<https://github.com/fmtlib/format-benchmark/blob/master/tinyformat_test.cpp>`_.
{fmt} is 10x faster than ``std::ostringstream`` and ``sprintf`` on floating-point
formatting (`dtoa-benchmark <https://github.com/fmtlib/dtoa-benchmark>`_)
and as fast as `double-conversion <https://github.com/google/double-conversion>`_:
{fmt} is up to 10x faster than ``std::ostringstream`` and ``sprintf`` on
floating-point formatting (`dtoa-benchmark <https://github.com/fmtlib/dtoa-benchmark>`_)
and faster than `double-conversion <https://github.com/google/double-conversion>`_:
.. image:: https://user-images.githubusercontent.com/576385/69767160-cdaca400-112f-11ea-9fc5-347c9f83caad.png
:target: https://fmt.dev/unknown_mac64_clang10.0.html
@ -264,12 +282,15 @@ or the bloat test::
Projects using this library
---------------------------
* `0 A.D. <https://play0ad.com/>`_: A free, open-source, cross-platform real-time
strategy game
* `0 A.D. <https://play0ad.com/>`_: A free, open-source, cross-platform
real-time strategy game
* `AMPL/MP <https://github.com/ampl/mp>`_:
An open-source library for mathematical programming
* `Aseprite <https://github.com/aseprite/aseprite>`_:
Animated sprite editor & pixel art tool
* `AvioBook <https://www.aviobook.aero/en>`_: A comprehensive aircraft
operations suite
@ -279,9 +300,21 @@ Projects using this library
* `ccache <https://ccache.dev/>`_: A compiler cache
* `ClickHouse <https://github.com/ClickHouse/ClickHouse>`_: analytical database management system
* `CUAUV <http://cuauv.org/>`_: Cornell University's autonomous underwater
vehicle
* `Drake <https://drake.mit.edu/>`_: A planning, control, and analysis toolbox
for nonlinear dynamical systems (MIT)
* `Envoy <https://lyft.github.io/envoy/>`_: C++ L7 proxy and communication bus
(Lyft)
* `FiveM <https://fivem.net/>`_: a modification framework for GTA V
* `Folly <https://github.com/facebook/folly>`_: Facebook open-source library
* `HarpyWar/pvpgn <https://github.com/pvpgn/pvpgn-server>`_:
Player vs Player Gaming Network with tweaks
@ -291,27 +324,25 @@ Projects using this library
* `Kodi <https://kodi.tv/>`_ (formerly xbmc): Home theater software
* `Lifeline <https://github.com/peter-clark/lifeline>`_: A 2D game
* `Knuth <https://kth.cash/>`_: High-performance Bitcoin full-node
* `Drake <https://drake.mit.edu/>`_: A planning, control, and analysis toolbox
for nonlinear dynamical systems (MIT)
* `Envoy <https://lyft.github.io/envoy/>`_: C++ L7 proxy and communication bus
(Lyft)
* `FiveM <https://fivem.net/>`_: a modification framework for GTA V
* `Microsoft Verona <https://github.com/microsoft/verona>`_:
Research programming language for concurrent ownership
* `MongoDB <https://mongodb.com/>`_: Distributed document database
* `MongoDB Smasher <https://github.com/duckie/mongo_smasher>`_: A small tool to
generate randomized datasets
* `OpenSpace <https://openspaceproject.com/>`_: An open-source astrovisualization
framework
* `OpenSpace <https://openspaceproject.com/>`_: An open-source
astrovisualization framework
* `PenUltima Online (POL) <https://www.polserver.com/>`_:
An MMO server, compatible with most Ultima Online clients
* `PyTorch <https://github.com/pytorch/pytorch>`_: An open-source machine
learning library
* `quasardb <https://www.quasardb.net/>`_: A distributed, high-performance,
associative database
@ -320,13 +351,14 @@ Projects using this library
* `redis-cerberus <https://github.com/HunanTV/redis-cerberus>`_: A Redis cluster
proxy
* `redpanda <https://vectorized.io/redpanda>`_: A 10x faster Kafka® replacement
for mission critical systems written in C++
* `rpclib <http://rpclib.net/>`_: A modern C++ msgpack-RPC server and client
library
* `Saddy <https://github.com/mamontov-cpp/saddy-graphics-engine-2d>`_:
Small crossplatform 2D graphic engine
* `Salesforce Analytics Cloud <https://www.salesforce.com/analytics-cloud/overview/>`_:
* `Salesforce Analytics Cloud
<https://www.salesforce.com/analytics-cloud/overview/>`_:
Business intelligence software
* `Scylla <https://www.scylladb.com/>`_: A Cassandra-compatible NoSQL data store
@ -344,6 +376,9 @@ Projects using this library
* `TrinityCore <https://github.com/TrinityCore/TrinityCore>`_: Open-source
MMORPG framework
* `Windows Terminal <https://github.com/microsoft/terminal>`_: The new Windows
Terminal
`More... <https://github.com/search?q=fmtlib&type=Code>`_
If you are aware of other projects using this library, please let me know
@ -407,8 +442,8 @@ Format also has excessive build times and severe code bloat issues (see
FastFormat
~~~~~~~~~~
This is an interesting library which is fast, safe and has positional
arguments. However it has significant limitations, citing its author:
This is an interesting library which is fast, safe and has positional arguments.
However, it has significant limitations, citing its author:
Three features that have no hope of being accommodated within the
current design are:
@ -417,8 +452,8 @@ arguments. However it has significant limitations, citing its author:
* Octal/hexadecimal encoding
* Runtime width/alignment specification
It is also quite big and has a heavy dependency, STLSoft, which might be
too restrictive for using it in some projects.
It is also quite big and has a heavy dependency, STLSoft, which might be too
restrictive for using it in some projects.
Boost Spirit.Karma
~~~~~~~~~~~~~~~~~~
@ -426,32 +461,9 @@ Boost Spirit.Karma
This is not really a formatting library but I decided to include it here for
completeness. As iostreams, it suffers from the problem of mixing verbatim text
with arguments. The library is pretty fast, but slower on integer formatting
than ``fmt::format_int`` on Karma's own benchmark,
see `Fast integer to string conversion in C++
<http://zverovich.net/2013/09/07/integer-to-string-conversion-in-cplusplus.html>`_.
FAQ
---
Q: how can I capture formatting arguments and format them later?
A: use ``std::tuple``:
.. code:: c++
template <typename... Args>
auto capture(const Args&... args) {
return std::make_tuple(args...);
}
auto print_message = [](const auto&... args) {
fmt::print(args...);
};
// Capture and store arguments:
auto args = capture("{} {}", 42, "foo");
// Do formatting:
std::apply(print_message, args);
than ``fmt::format_to`` with format string compilation on Karma's own benchmark,
see `Converting a hundred million integers to strings per second
<http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_.
License
-------
@ -459,18 +471,19 @@ License
{fmt} is distributed under the MIT `license
<https://github.com/fmtlib/fmt/blob/master/LICENSE.rst>`_.
The `Format String Syntax
<https://fmt.dev/latest/syntax.html>`_
section in the documentation is based on the one from Python `string module
documentation <https://docs.python.org/3/library/string.html#module-string>`_
adapted for the current library. For this reason the documentation is
distributed under the Python Software Foundation license available in
`doc/python-license.txt
<https://raw.github.com/fmtlib/fmt/master/doc/python-license.txt>`_.
It only applies if you distribute the documentation of fmt.
Documentation License
---------------------
Acknowledgments
---------------
The `Format String Syntax <https://fmt.dev/latest/syntax.html>`_
section in the documentation is based on the one from Python `string module
documentation <https://docs.python.org/3/library/string.html#module-string>`_.
For this reason the documentation is distributed under the Python Software
Foundation license available in `doc/python-license.txt
<https://raw.github.com/fmtlib/fmt/master/doc/python-license.txt>`_.
It only applies if you distribute the documentation of {fmt}.
Maintainers
-----------
The {fmt} library is maintained by Victor Zverovich (`vitaut
<https://github.com/vitaut>`_) and Jonathan Müller (`foonathan
@ -479,23 +492,3 @@ See `Contributors <https://github.com/fmtlib/fmt/graphs/contributors>`_ and
`Releases <https://github.com/fmtlib/fmt/releases>`_ for some of the names.
Let us know if your contribution is not listed or mentioned incorrectly and
we'll make it right.
The benchmark section of this readme file and the performance tests are taken
from the excellent `tinyformat <https://github.com/c42f/tinyformat>`_ library
written by Chris Foster. Boost Format library is acknowledged transitively
since it had some influence on tinyformat.
Some ideas used in the implementation are borrowed from `Loki
<http://loki-lib.sourceforge.net/>`_ SafeFormat and `Diagnostic API
<https://clang.llvm.org/doxygen/classclang_1_1Diagnostic.html>`_ in
`Clang <https://clang.llvm.org/>`_.
Format string syntax and the documentation are based on Python's `str.format
<https://docs.python.org/3/library/stdtypes.html#str.format>`_.
Thanks `Doug Turnbull <https://github.com/softwaredoug>`_ for his valuable
comments and contribution to the design of the type-safe API and
`Gregory Czajkowski <https://github.com/gcflymoto>`_ for implementing binary
formatting. Thanks `Ruslan Baratov <https://github.com/ruslo>`_ for comprehensive
`comparison of integer formatting algorithms <https://github.com/ruslo/int-dec-format-tests>`_
and useful comments regarding performance, `Boris Kaul <https://github.com/localvoid>`_ for
`C++ counting digits benchmark <https://github.com/localvoid/cxx-benchmark-count-digits>`_.
Thanks to `CarterLi <https://github.com/CarterLi>`_ for contributing various
improvements to the code.

View file

@ -9,4 +9,5 @@ add_custom_target(doc
SOURCES api.rst syntax.rst usage.rst build.py conf.py _templates/layout.html)
install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/
DESTINATION share/doc/fmt OPTIONAL)
DESTINATION share/doc/fmt OPTIONAL
PATTERN ".doctrees" EXCLUDE)

View file

@ -6,14 +6,13 @@
<meta name="author" content="Victor Zverovich">
<link rel="stylesheet" href="_static/fmt.css">
{# Google Analytics #}
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-20116650-4"></script>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();
a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;
a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-20116650-4', 'fmtlib.net');
ga('send', 'pageview');
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-20116650-4');
</script>
{% endblock %}

View file

@ -9,10 +9,12 @@ The {fmt} library API consists of the following parts:
* :ref:`fmt/core.h <core-api>`: the core API providing argument handling
facilities and a lightweight subset of formatting functions
* :ref:`fmt/format.h <format-api>`: the full format API providing compile-time
format string checks, output iterator and user-defined type support
format string checks, wide string, output iterator and user-defined type
support
* :ref:`fmt/ranges.h <ranges-api>`: additional formatting support for ranges
and tuples
* :ref:`fmt/chrono.h <chrono-api>`: date and time formatting
* :ref:`fmt/compile.h <compile-api>`: format string compilation
* :ref:`fmt/ostream.h <ostream-api>`: ``std::ostream`` support
* :ref:`fmt/printf.h <printf-api>`: ``printf`` formatting
@ -43,7 +45,7 @@ participate in an overload resolution if the latter is not a string.
.. _format:
.. doxygenfunction:: format(const S&, Args&&...)
.. doxygenfunction:: vformat(const S&, basic_format_args<buffer_context<Char>>)
.. doxygenfunction:: vformat(const S&, basic_format_args<buffer_context<type_identity_t<Char>>>)
.. _print:
@ -68,6 +70,9 @@ Argument Lists
.. doxygenclass:: fmt::format_arg_store
:members:
.. doxygenclass:: fmt::dynamic_format_arg_store
:members:
.. doxygenclass:: fmt::basic_format_args
:members:
@ -96,7 +101,7 @@ locale::
#include <locale>
std::locale::global(std::locale("en_US.UTF-8"));
auto s = fmt::format("{:n}", 1000000); // s == "1,000,000"
auto s = fmt::format("{:L}", 1000000); // s == "1,000,000"
.. _format-api:
@ -104,7 +109,7 @@ Format API
==========
``fmt/format.h`` defines the full format API providing compile-time format
string checks, output iterator and user-defined type support.
string checks, wide string, output iterator and user-defined type support.
Compile-time Format String Checks
---------------------------------
@ -132,6 +137,7 @@ template and implement ``parse`` and ``format`` methods::
// Parses format specifications of the form ['f' | 'e'].
constexpr auto parse(format_parse_context& ctx) {
// auto parse(format_parse_context &ctx) -> decltype(ctx.begin()) // c++11
// [ctx.begin(), ctx.end()) is a character range that contains a part of
// the format string starting from the format specifications to be parsed,
// e.g. in
@ -159,6 +165,7 @@ template and implement ``parse`` and ``format`` methods::
// stored in this formatter.
template <typename FormatContext>
auto format(const point& p, FormatContext& ctx) {
// auto format(const point &p, FormatContext &ctx) -> decltype(ctx.out()) // c++11
// ctx.out() is an output iterator to write to.
return format_to(
ctx.out(),
@ -178,8 +185,7 @@ example::
enum class color {red, green, blue};
template <>
struct fmt::formatter<color>: formatter<string_view> {
template <> struct fmt::formatter<color>: formatter<string_view> {
// parse is inherited from formatter<string_view>.
template <typename FormatContext>
auto format(color c, FormatContext& ctx) {
@ -193,6 +199,15 @@ example::
}
};
Since ``parse`` is inherited from ``formatter<string_view>`` it will recognize
all string format specifications, for example
.. code-block:: c++
fmt::format("{:>10}", color::blue)
will return ``" blue"``.
You can also write a formatter for a hierarchy of classes::
#include <type_traits>
@ -229,7 +244,7 @@ Output Iterator Support
-----------------------
.. doxygenfunction:: fmt::format_to(OutputIt, const S&, Args&&...)
.. doxygenfunction:: fmt::format_to_n(OutputIt, std::size_t, string_view, Args&&...)
.. doxygenfunction:: fmt::format_to_n(OutputIt, size_t, const S&, const Args&...)
.. doxygenstruct:: fmt::format_to_n_result
:members:
@ -238,9 +253,9 @@ Literal-based API
The following user-defined literals are defined in ``fmt/format.h``.
.. doxygenfunction:: operator""_format(const char *, std::size_t)
.. doxygenfunction:: operator""_format(const char *, size_t)
.. doxygenfunction:: operator""_a(const char *, std::size_t)
.. doxygenfunction:: operator""_a(const char *, size_t)
Utilities
---------
@ -259,7 +274,10 @@ Utilities
.. doxygenfunction:: fmt::join(const Range&, string_view)
.. doxygenfunction:: fmt::join(It, It, string_view)
.. doxygenfunction:: fmt::join(It, Sentinel, string_view)
.. doxygenclass:: fmt::detail::buffer
:members:
.. doxygenclass:: fmt::basic_memory_buffer
:protected-members:
@ -317,50 +335,6 @@ arguments, the container that stores pointers to them will be allocated using
the default allocator. Also floating-point formatting falls back on ``sprintf``
which may do allocations.
Custom Formatting of Built-in Types
-----------------------------------
It is possible to change the way arguments are formatted by providing a
custom argument formatter class::
using arg_formatter = fmt::arg_formatter<fmt::buffer_range<char>>;
// A custom argument formatter that formats negative integers as unsigned
// with the ``x`` format specifier.
class custom_arg_formatter : public arg_formatter {
public:
custom_arg_formatter(fmt::format_context& ctx,
fmt::format_parse_context* parse_ctx = nullptr,
fmt::format_specs* spec = nullptr)
: arg_formatter(ctx, parse_ctx, spec) {}
using arg_formatter::operator();
auto operator()(int value) {
if (specs() && specs()->type == 'x')
return (*this)(static_cast<unsigned>(value)); // convert to unsigned and format
return arg_formatter::operator()(value);
}
};
std::string custom_vformat(fmt::string_view format_str, fmt::format_args args) {
fmt::memory_buffer buffer;
// Pass custom argument formatter as a template arg to vformat_to.
fmt::vformat_to<custom_arg_formatter>(buffer, format_str, args);
return fmt::to_string(buffer);
}
template <typename ...Args>
inline std::string custom_format(
fmt::string_view format_str, const Args&... args) {
return custom_vformat(format_str, fmt::make_format_args(args...));
}
std::string s = custom_format("{:x}", -42); // s == "ffffffd6"
.. doxygenclass:: fmt::arg_formatter
:members:
.. _ranges-api:
Ranges and Tuple Formatting
@ -399,11 +373,26 @@ formatting::
std::time_t t = std::time(nullptr);
// Prints "The date is 2016-04-29." (with the current date)
fmt::print("The date is {:%Y-%m-%d}.", *std::localtime(&t));
fmt::print("The date is {:%Y-%m-%d}.", fmt::localtime(t));
The format string syntax is described in the documentation of
`strftime <http://en.cppreference.com/w/cpp/chrono/c/strftime>`_.
.. _compile-api:
Format string compilation
=========================
``fmt/compile.h`` provides format string compilation support. Format strings
are parsed at compile time and converted into efficient formatting code. This
supports arguments of built-in and string types as well as user-defined types
with ``constexpr`` ``parse`` functions in their ``formatter`` specializations.
Format string compilation can generate more binary code compared to the default
API and is only recommended in places where formatting is a performance
bottleneck.
.. doxygendefine:: FMT_COMPILE
.. _ostream-api:
``std::ostream`` Support
@ -448,3 +437,19 @@ argument type doesn't match its format specification.
.. doxygenfunction:: fprintf(std::basic_ostream<Char>&, const S&, const Args&...)
.. doxygenfunction:: sprintf(const S&, const Args&...)
Compatibility with C++20 ``std::format``
========================================
{fmt} implements nearly all of the `C++20 formatting library
<https://en.cppreference.com/w/cpp/utility/format>`_ with the following
differences:
* Names are defined in the ``fmt`` namespace instead of ``std`` to avoid
collisions with standard library implementations.
* The ``'L'`` format specifier cannot be combined with presentation specifiers
yet.
* Width calculation doesn't use grapheme clusterization. The latter has been
implemented in a separate branch but hasn't been integrated yet.
* Chrono formatting doesn't support C++20 date types since they are not provided
by standard library implementations.

View file

@ -6,7 +6,7 @@ import errno, os, shutil, sys, tempfile
from subprocess import check_call, check_output, CalledProcessError, Popen, PIPE
from distutils.version import LooseVersion
versions = ['1.0.0', '1.1.0', '2.0.0', '3.0.2', '4.0.0', '4.1.0', '5.0.0', '5.1.0', '5.2.0', '5.2.1', '5.3.0', '6.0.0', '6.1.0', '6.1.1', '6.1.2', '6.2.0']
versions = ['1.0.0', '1.1.0', '2.0.0', '3.0.2', '4.0.0', '4.1.0', '5.0.0', '5.1.0', '5.2.0', '5.2.1', '5.3.0', '6.0.0', '6.1.0', '6.1.1', '6.1.2', '6.2.0', '6.2.1', '7.0.0', '7.0.1', '7.0.2', '7.0.3']
def pip_install(package, commit=None, **kwargs):
"Install package using pip."
@ -74,8 +74,8 @@ def build_docs(version='dev', **kwargs):
GENERATE_MAN = NO
GENERATE_RTF = NO
CASE_SENSE_NAMES = NO
INPUT = {0}/core.h {0}/format.h {0}/os.h {0}/ostream.h \
{0}/printf.h {0}/time.h
INPUT = {0}/core.h {0}/compile.h {0}/format.h {0}/os.h \
{0}/ostream.h {0}/printf.h {0}/time.h
QUIET = YES
JAVADOC_AUTOBRIEF = YES
AUTOLINK_SUPPORT = NO

View file

@ -22,7 +22,7 @@ Format API
----------
The format API is similar in spirit to the C ``printf`` family of function but
is safer, simpler and serveral times `faster
is safer, simpler and several times `faster
<http://zverovich.net/2013/09/07/integer-to-string-conversion-in-cplusplus.html>`_
than common standard library implementations.
The `format string syntax <syntax.html>`_ is similar to the one used by

View file

@ -79,8 +79,8 @@ The general form of a *standard format specifier* is:
fill: <a character other than '{' or '}'>
align: "<" | ">" | "^"
sign: "+" | "-" | " "
width: `integer` | "{" `arg_id` "}"
precision: `integer` | "{" `arg_id` "}"
width: `integer` | "{" [`arg_id`] "}"
precision: `integer` | "{" [`arg_id`] "}"
type: `int_type` | "a" | "A" | "c" | "e" | "E" | "f" | "F" | "g" | "G" | "L" | "p" | "s"
int_type: "b" | "B" | "d" | "o" | "x" | "X"

View file

@ -48,7 +48,7 @@ FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
// From fits in To without any problem.
} else {
// From does not always fit in To, resort to a dynamic check.
if (from < T::min() || from > T::max()) {
if (from < (T::min)() || from > (T::max)()) {
// outside range.
ec = 1;
return {};
@ -74,7 +74,7 @@ FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
if (F::is_signed && !T::is_signed) {
// From may be negative, not allowed!
if (fmt::internal::is_negative(from)) {
if (fmt::detail::is_negative(from)) {
ec = 1;
return {};
}
@ -84,7 +84,7 @@ FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
// yes, From always fits in To.
} else {
// from may not fit in To, we have to do a dynamic check
if (from > static_cast<From>(T::max())) {
if (from > static_cast<From>((T::max)())) {
ec = 1;
return {};
}
@ -97,7 +97,7 @@ FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
// yes, From always fits in To.
} else {
// from may not fit in To, we have to do a dynamic check
if (from > static_cast<From>(T::max())) {
if (from > static_cast<From>((T::max)())) {
// outside range.
ec = 1;
return {};
@ -141,7 +141,7 @@ FMT_CONSTEXPR To safe_float_conversion(const From from, int& ec) {
// catch the only happy case
if (std::isfinite(from)) {
if (from >= T::lowest() && from <= T::max()) {
if (from >= T::lowest() && from <= (T::max)()) {
return static_cast<To>(from);
}
// not within range.
@ -195,12 +195,13 @@ To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
}
// multiply with Factor::num without overflow or underflow
if (Factor::num != 1) {
const auto max1 = internal::max_value<IntermediateRep>() / Factor::num;
const auto max1 = detail::max_value<IntermediateRep>() / Factor::num;
if (count > max1) {
ec = 1;
return {};
}
const auto min1 = std::numeric_limits<IntermediateRep>::min() / Factor::num;
const auto min1 =
(std::numeric_limits<IntermediateRep>::min)() / Factor::num;
if (count < min1) {
ec = 1;
return {};
@ -269,7 +270,7 @@ To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
// multiply with Factor::num without overflow or underflow
if (Factor::num != 1) {
constexpr auto max1 = internal::max_value<IntermediateRep>() /
constexpr auto max1 = detail::max_value<IntermediateRep>() /
static_cast<IntermediateRep>(Factor::num);
if (count > max1) {
ec = 1;
@ -306,12 +307,12 @@ To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
// Usage: f FMT_NOMACRO()
#define FMT_NOMACRO
namespace internal {
namespace detail {
inline null<> localtime_r FMT_NOMACRO(...) { return null<>(); }
inline null<> localtime_s(...) { return null<>(); }
inline null<> gmtime_r(...) { return null<>(); }
inline null<> gmtime_s(...) { return null<>(); }
} // namespace internal
} // namespace detail
// Thread-safe replacement for std::localtime
inline std::tm localtime(std::time_t time) {
@ -322,22 +323,22 @@ inline std::tm localtime(std::time_t time) {
dispatcher(std::time_t t) : time_(t) {}
bool run() {
using namespace fmt::internal;
using namespace fmt::detail;
return handle(localtime_r(&time_, &tm_));
}
bool handle(std::tm* tm) { return tm != nullptr; }
bool handle(internal::null<>) {
using namespace fmt::internal;
bool handle(detail::null<>) {
using namespace fmt::detail;
return fallback(localtime_s(&tm_, &time_));
}
bool fallback(int res) { return res == 0; }
#if !FMT_MSC_VER
bool fallback(internal::null<>) {
using namespace fmt::internal;
bool fallback(detail::null<>) {
using namespace fmt::detail;
std::tm* tm = std::localtime(&time_);
if (tm) tm_ = *tm;
return tm != nullptr;
@ -359,21 +360,21 @@ inline std::tm gmtime(std::time_t time) {
dispatcher(std::time_t t) : time_(t) {}
bool run() {
using namespace fmt::internal;
using namespace fmt::detail;
return handle(gmtime_r(&time_, &tm_));
}
bool handle(std::tm* tm) { return tm != nullptr; }
bool handle(internal::null<>) {
using namespace fmt::internal;
bool handle(detail::null<>) {
using namespace fmt::detail;
return fallback(gmtime_s(&tm_, &time_));
}
bool fallback(int res) { return res == 0; }
#if !FMT_MSC_VER
bool fallback(internal::null<>) {
bool fallback(detail::null<>) {
std::tm* tm = std::gmtime(&time_);
if (tm) tm_ = *tm;
return tm != nullptr;
@ -386,17 +387,17 @@ inline std::tm gmtime(std::time_t time) {
return gt.tm_;
}
namespace internal {
inline std::size_t strftime(char* str, std::size_t count, const char* format,
const std::tm* time) {
namespace detail {
inline size_t strftime(char* str, size_t count, const char* format,
const std::tm* time) {
return std::strftime(str, count, format, time);
}
inline std::size_t strftime(wchar_t* str, std::size_t count,
const wchar_t* format, const std::tm* time) {
inline size_t strftime(wchar_t* str, size_t count, const wchar_t* format,
const std::tm* time) {
return std::wcsftime(str, count, format, time);
}
} // namespace internal
} // namespace detail
template <typename Char> struct formatter<std::tm, Char> {
template <typename ParseContext>
@ -405,7 +406,7 @@ template <typename Char> struct formatter<std::tm, Char> {
if (it != ctx.end() && *it == ':') ++it;
auto end = it;
while (end != ctx.end() && *end != '}') ++end;
tm_format.reserve(internal::to_unsigned(end - it + 1));
tm_format.reserve(detail::to_unsigned(end - it + 1));
tm_format.append(it, end);
tm_format.push_back('\0');
return end;
@ -414,11 +415,10 @@ template <typename Char> struct formatter<std::tm, Char> {
template <typename FormatContext>
auto format(const std::tm& tm, FormatContext& ctx) -> decltype(ctx.out()) {
basic_memory_buffer<Char> buf;
std::size_t start = buf.size();
size_t start = buf.size();
for (;;) {
std::size_t size = buf.capacity() - start;
std::size_t count =
internal::strftime(&buf[start], size, &tm_format[0], &tm);
size_t size = buf.capacity() - start;
size_t count = detail::strftime(&buf[start], size, &tm_format[0], &tm);
if (count != 0) {
buf.resize(start + count);
break;
@ -430,7 +430,7 @@ template <typename Char> struct formatter<std::tm, Char> {
// https://github.com/fmtlib/fmt/issues/367
break;
}
const std::size_t MIN_GROWTH = 10;
const size_t MIN_GROWTH = 10;
buf.reserve(buf.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH));
}
return std::copy(buf.begin(), buf.end(), ctx.out());
@ -439,7 +439,7 @@ template <typename Char> struct formatter<std::tm, Char> {
basic_memory_buffer<Char> tm_format;
};
namespace internal {
namespace detail {
template <typename Period> FMT_CONSTEXPR const char* get_units() {
return nullptr;
}
@ -768,19 +768,25 @@ OutputIt format_duration_value(OutputIt out, Rep val, int precision) {
return format_to(out, std::is_floating_point<Rep>::value ? fp_f : format,
val);
}
template <typename Char, typename OutputIt>
OutputIt copy_unit(string_view unit, OutputIt out, Char) {
return std::copy(unit.begin(), unit.end(), out);
}
template <typename OutputIt>
OutputIt copy_unit(string_view unit, OutputIt out, wchar_t) {
// This works when wchar_t is UTF-32 because units only contain characters
// that have the same representation in UTF-16 and UTF-32.
utf8_to_utf16 u(unit);
return std::copy(u.c_str(), u.c_str() + u.size(), out);
}
template <typename Char, typename Period, typename OutputIt>
OutputIt format_duration_unit(OutputIt out) {
if (const char* unit = get_units<Period>()) {
string_view s(unit);
if (const_check(std::is_same<Char, wchar_t>())) {
utf8_to_utf16 u(s);
return std::copy(u.c_str(), u.c_str() + u.size(), out);
}
return std::copy(s.begin(), s.end(), out);
}
if (const char* unit = get_units<Period>())
return copy_unit(string_view(unit), out, Char());
const Char num_f[] = {'[', '{', '}', ']', 's', 0};
if (Period::den == 1) return format_to(out, num_f, Period::num);
if (const_check(Period::den == 1)) return format_to(out, num_f, Period::num);
const Char num_def_f[] = {'[', '{', '}', '/', '{', '}', ']', 's', 0};
return format_to(out, num_def_f, Period::num, Period::den);
}
@ -874,9 +880,9 @@ struct chrono_formatter {
if (isnan(value)) return write_nan();
uint32_or_64_or_128_t<int> n =
to_unsigned(to_nonnegative_int(value, max_value<int>()));
int num_digits = internal::count_digits(n);
int num_digits = detail::count_digits(n);
if (width > num_digits) out = std::fill_n(out, width - num_digits, '0');
out = format_decimal<char_type>(out, n, num_digits);
out = format_decimal<char_type>(out, n, num_digits).end;
}
void write_nan() { std::copy_n("nan", 3, out); }
@ -1004,14 +1010,14 @@ struct chrono_formatter {
out = format_duration_unit<char_type, Period>(out);
}
};
} // namespace internal
} // namespace detail
template <typename Rep, typename Period, typename Char>
struct formatter<std::chrono::duration<Rep, Period>, Char> {
private:
basic_format_specs<Char> specs;
int precision;
using arg_ref_type = internal::arg_ref<Char>;
using arg_ref_type = detail::arg_ref<Char>;
arg_ref_type width_ref;
arg_ref_type precision_ref;
mutable basic_string_view<Char> format_str;
@ -1032,7 +1038,7 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
return arg_ref_type(arg_id);
}
FMT_CONSTEXPR arg_ref_type make_arg_ref(internal::auto_id) {
FMT_CONSTEXPR arg_ref_type make_arg_ref(detail::auto_id) {
return arg_ref_type(context.next_arg_id());
}
@ -1062,17 +1068,17 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
auto begin = ctx.begin(), end = ctx.end();
if (begin == end || *begin == '}') return {begin, begin};
spec_handler handler{*this, ctx, format_str};
begin = internal::parse_align(begin, end, handler);
begin = detail::parse_align(begin, end, handler);
if (begin == end) return {begin, begin};
begin = internal::parse_width(begin, end, handler);
begin = detail::parse_width(begin, end, handler);
if (begin == end) return {begin, begin};
if (*begin == '.') {
if (std::is_floating_point<Rep>::value)
begin = internal::parse_precision(begin, end, handler);
begin = detail::parse_precision(begin, end, handler);
else
handler.on_error("precision not allowed for this argument type");
}
end = parse_chrono_format(begin, end, internal::chrono_format_checker());
end = parse_chrono_format(begin, end, detail::chrono_format_checker());
return {begin, end};
}
@ -1083,7 +1089,7 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
-> decltype(ctx.begin()) {
auto range = do_parse(ctx);
format_str = basic_string_view<Char>(
&*range.begin, internal::to_unsigned(range.end - range.begin));
&*range.begin, detail::to_unsigned(range.end - range.begin));
return range.end;
}
@ -1094,23 +1100,21 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
// is not specified.
basic_memory_buffer<Char> buf;
auto out = std::back_inserter(buf);
using range = internal::output_range<decltype(ctx.out()), Char>;
internal::basic_writer<range> w(range(ctx.out()));
internal::handle_dynamic_spec<internal::width_checker>(specs.width,
width_ref, ctx);
internal::handle_dynamic_spec<internal::precision_checker>(
precision, precision_ref, ctx);
detail::handle_dynamic_spec<detail::width_checker>(specs.width, width_ref,
ctx);
detail::handle_dynamic_spec<detail::precision_checker>(precision,
precision_ref, ctx);
if (begin == end || *begin == '}') {
out = internal::format_duration_value<Char>(out, d.count(), precision);
internal::format_duration_unit<Char, Period>(out);
out = detail::format_duration_value<Char>(out, d.count(), precision);
detail::format_duration_unit<Char, Period>(out);
} else {
internal::chrono_formatter<FormatContext, decltype(out), Rep, Period> f(
detail::chrono_formatter<FormatContext, decltype(out), Rep, Period> f(
ctx, out, d);
f.precision = precision;
parse_chrono_format(begin, end, f);
}
w.write(buf.data(), buf.size(), specs);
return w.out();
return detail::write(
ctx.out(), basic_string_view<Char>(buf.data(), buf.size()), specs);
}
};

View file

@ -198,7 +198,7 @@ struct rgb {
uint8_t b;
};
namespace internal {
namespace detail {
// color is a struct of either a rgb color or a terminal color.
struct color_type {
@ -221,7 +221,7 @@ struct color_type {
uint32_t rgb_color;
} value;
};
} // namespace internal
} // namespace detail
// Experimental text formatting support.
class text_style {
@ -298,11 +298,11 @@ class text_style {
FMT_CONSTEXPR bool has_emphasis() const FMT_NOEXCEPT {
return static_cast<uint8_t>(ems) != 0;
}
FMT_CONSTEXPR internal::color_type get_foreground() const FMT_NOEXCEPT {
FMT_CONSTEXPR detail::color_type get_foreground() const FMT_NOEXCEPT {
FMT_ASSERT(has_foreground(), "no foreground specified for this style");
return foreground_color;
}
FMT_CONSTEXPR internal::color_type get_background() const FMT_NOEXCEPT {
FMT_CONSTEXPR detail::color_type get_background() const FMT_NOEXCEPT {
FMT_ASSERT(has_background(), "no background specified for this style");
return background_color;
}
@ -313,7 +313,7 @@ class text_style {
private:
FMT_CONSTEXPR text_style(bool is_foreground,
internal::color_type text_color) FMT_NOEXCEPT
detail::color_type text_color) FMT_NOEXCEPT
: set_foreground_color(),
set_background_color(),
ems() {
@ -326,23 +326,23 @@ class text_style {
}
}
friend FMT_CONSTEXPR_DECL text_style fg(internal::color_type foreground)
friend FMT_CONSTEXPR_DECL text_style fg(detail::color_type foreground)
FMT_NOEXCEPT;
friend FMT_CONSTEXPR_DECL text_style bg(internal::color_type background)
friend FMT_CONSTEXPR_DECL text_style bg(detail::color_type background)
FMT_NOEXCEPT;
internal::color_type foreground_color;
internal::color_type background_color;
detail::color_type foreground_color;
detail::color_type background_color;
bool set_foreground_color;
bool set_background_color;
emphasis ems;
};
FMT_CONSTEXPR text_style fg(internal::color_type foreground) FMT_NOEXCEPT {
FMT_CONSTEXPR text_style fg(detail::color_type foreground) FMT_NOEXCEPT {
return text_style(/*is_foreground=*/true, foreground);
}
FMT_CONSTEXPR text_style bg(internal::color_type background) FMT_NOEXCEPT {
FMT_CONSTEXPR text_style bg(detail::color_type background) FMT_NOEXCEPT {
return text_style(/*is_foreground=*/false, background);
}
@ -350,21 +350,21 @@ FMT_CONSTEXPR text_style operator|(emphasis lhs, emphasis rhs) FMT_NOEXCEPT {
return text_style(lhs) | rhs;
}
namespace internal {
namespace detail {
template <typename Char> struct ansi_color_escape {
FMT_CONSTEXPR ansi_color_escape(internal::color_type text_color,
FMT_CONSTEXPR ansi_color_escape(detail::color_type text_color,
const char* esc) FMT_NOEXCEPT {
// If we have a terminal color, we need to output another escape code
// sequence.
if (!text_color.is_rgb) {
bool is_background = esc == internal::data::background_color;
bool is_background = esc == detail::data::background_color;
uint32_t value = text_color.value.term_color;
// Background ASCII codes are the same as the foreground ones but with
// 10 more.
if (is_background) value += 10u;
std::size_t index = 0;
size_t index = 0;
buffer[index++] = static_cast<Char>('\x1b');
buffer[index++] = static_cast<Char>('[');
@ -398,7 +398,7 @@ template <typename Char> struct ansi_color_escape {
if (em_bits & static_cast<uint8_t>(emphasis::strikethrough))
em_codes[3] = 9;
std::size_t index = 0;
size_t index = 0;
for (int i = 0; i < 4; ++i) {
if (!em_codes[i]) continue;
buffer[index++] = static_cast<Char>('\x1b');
@ -429,14 +429,14 @@ template <typename Char> struct ansi_color_escape {
template <typename Char>
FMT_CONSTEXPR ansi_color_escape<Char> make_foreground_color(
internal::color_type foreground) FMT_NOEXCEPT {
return ansi_color_escape<Char>(foreground, internal::data::foreground_color);
detail::color_type foreground) FMT_NOEXCEPT {
return ansi_color_escape<Char>(foreground, detail::data::foreground_color);
}
template <typename Char>
FMT_CONSTEXPR ansi_color_escape<Char> make_background_color(
internal::color_type background) FMT_NOEXCEPT {
return ansi_color_escape<Char>(background, internal::data::background_color);
detail::color_type background) FMT_NOEXCEPT {
return ansi_color_escape<Char>(background, detail::data::background_color);
}
template <typename Char>
@ -455,11 +455,11 @@ inline void fputs<wchar_t>(const wchar_t* chars, FILE* stream) FMT_NOEXCEPT {
}
template <typename Char> inline void reset_color(FILE* stream) FMT_NOEXCEPT {
fputs(internal::data::reset_color, stream);
fputs(detail::data::reset_color, stream);
}
template <> inline void reset_color<wchar_t>(FILE* stream) FMT_NOEXCEPT {
fputs(internal::data::wreset_color, stream);
fputs(detail::data::wreset_color, stream);
}
template <typename Char>
@ -476,33 +476,31 @@ void vformat_to(basic_memory_buffer<Char>& buf, const text_style& ts,
bool has_style = false;
if (ts.has_emphasis()) {
has_style = true;
auto emphasis = internal::make_emphasis<Char>(ts.get_emphasis());
auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis());
buf.append(emphasis.begin(), emphasis.end());
}
if (ts.has_foreground()) {
has_style = true;
auto foreground =
internal::make_foreground_color<Char>(ts.get_foreground());
auto foreground = detail::make_foreground_color<Char>(ts.get_foreground());
buf.append(foreground.begin(), foreground.end());
}
if (ts.has_background()) {
has_style = true;
auto background =
internal::make_background_color<Char>(ts.get_background());
auto background = detail::make_background_color<Char>(ts.get_background());
buf.append(background.begin(), background.end());
}
internal::vformat_to(buf, format_str, args);
if (has_style) internal::reset_color<Char>(buf);
detail::vformat_to(buf, format_str, args);
if (has_style) detail::reset_color<Char>(buf);
}
} // namespace internal
} // namespace detail
template <typename S, typename Char = char_t<S>>
void vprint(std::FILE* f, const text_style& ts, const S& format,
basic_format_args<buffer_context<Char>> args) {
basic_memory_buffer<Char> buf;
internal::vformat_to(buf, ts, to_string_view(format), args);
detail::vformat_to(buf, ts, to_string_view(format), args);
buf.push_back(Char(0));
internal::fputs(buf.data(), f);
detail::fputs(buf.data(), f);
}
/**
@ -513,10 +511,10 @@ void vprint(std::FILE* f, const text_style& ts, const S& format,
"Elapsed time: {0:.2f} seconds", 1.23);
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(internal::is_string<S>::value)>
FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(std::FILE* f, const text_style& ts, const S& format_str,
const Args&... args) {
internal::check_format_string<Args...>(format_str);
detail::check_format_string<Args...>(format_str);
using context = buffer_context<char_t<S>>;
format_arg_store<context, Args...> as{args...};
vprint(f, ts, format_str, basic_format_args<context>(as));
@ -530,7 +528,7 @@ void print(std::FILE* f, const text_style& ts, const S& format_str,
"Elapsed time: {0:.2f} seconds", 1.23);
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(internal::is_string<S>::value)>
FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(const text_style& ts, const S& format_str, const Args&... args) {
return print(stdout, ts, format_str, args...);
}
@ -540,7 +538,7 @@ inline std::basic_string<Char> vformat(
const text_style& ts, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buf;
internal::vformat_to(buf, ts, to_string_view(format_str), args);
detail::vformat_to(buf, ts, to_string_view(format_str), args);
return fmt::to_string(buf);
}
@ -560,7 +558,7 @@ template <typename S, typename... Args, typename Char = char_t<S>>
inline std::basic_string<Char> format(const text_style& ts, const S& format_str,
const Args&... args) {
return vformat(ts, to_string_view(format_str),
internal::make_args_checked<Args...>(format_str, args...));
detail::make_args_checked<Args...>(format_str, args...));
}
FMT_END_NAMESPACE

View file

@ -13,7 +13,33 @@
#include "format.h"
FMT_BEGIN_NAMESPACE
namespace internal {
namespace detail {
// A compile-time string which is compiled into fast formatting code.
class compiled_string {};
template <typename S>
struct is_compiled_string : std::is_base_of<compiled_string, S> {};
/**
\rst
Converts a string literal *s* into a format string that will be parsed at
compile time and converted into efficient formatting code. Requires C++17
``constexpr if`` compiler support.
**Example**::
// Converts 42 into std::string using the most efficient method and no
// runtime format string processing.
std::string s = fmt::format(FMT_COMPILE("{}"), 42);
\endrst
*/
#define FMT_COMPILE(s) FMT_STRING_IMPL(s, fmt::detail::compiled_string)
template <typename T, typename... Tail>
const T& first(const T& value, const Tail&...) {
return value;
}
// Part of a compiled format string. It can be either literal text or a
// replacement field.
@ -62,13 +88,15 @@ template <typename Char> struct part_counter {
if (begin != end) ++num_parts;
}
FMT_CONSTEXPR void on_arg_id() { ++num_parts; }
FMT_CONSTEXPR void on_arg_id(int) { ++num_parts; }
FMT_CONSTEXPR void on_arg_id(basic_string_view<Char>) { ++num_parts; }
FMT_CONSTEXPR int on_arg_id() { return ++num_parts, 0; }
FMT_CONSTEXPR int on_arg_id(int) { return ++num_parts, 0; }
FMT_CONSTEXPR int on_arg_id(basic_string_view<Char>) {
return ++num_parts, 0;
}
FMT_CONSTEXPR void on_replacement_field(const Char*) {}
FMT_CONSTEXPR void on_replacement_field(int, const Char*) {}
FMT_CONSTEXPR const Char* on_format_specs(const Char* begin,
FMT_CONSTEXPR const Char* on_format_specs(int, const Char* begin,
const Char* end) {
// Find the matching brace.
unsigned brace_counter = 0;
@ -116,25 +144,28 @@ class format_string_compiler : public error_handler {
handler_(part::make_text({begin, to_unsigned(end - begin)}));
}
FMT_CONSTEXPR void on_arg_id() {
FMT_CONSTEXPR int on_arg_id() {
part_ = part::make_arg_index(parse_context_.next_arg_id());
return 0;
}
FMT_CONSTEXPR void on_arg_id(int id) {
FMT_CONSTEXPR int on_arg_id(int id) {
parse_context_.check_arg_id(id);
part_ = part::make_arg_index(id);
return 0;
}
FMT_CONSTEXPR void on_arg_id(basic_string_view<Char> id) {
FMT_CONSTEXPR int on_arg_id(basic_string_view<Char> id) {
part_ = part::make_arg_name(id);
return 0;
}
FMT_CONSTEXPR void on_replacement_field(const Char* ptr) {
FMT_CONSTEXPR void on_replacement_field(int, const Char* ptr) {
part_.arg_id_end = ptr;
handler_(part_);
}
FMT_CONSTEXPR const Char* on_format_specs(const Char* begin,
FMT_CONSTEXPR const Char* on_format_specs(int, const Char* begin,
const Char* end) {
auto repl = typename part::replacement();
dynamic_specs_handler<basic_format_parse_context<Char>> handler(
@ -160,23 +191,24 @@ FMT_CONSTEXPR void compile_format_string(basic_string_view<Char> format_str,
format_string_compiler<Char, PartHandler>(format_str, handler));
}
template <typename Range, typename Context, typename Id>
template <typename OutputIt, typename Context, typename Id>
void format_arg(
basic_format_parse_context<typename Range::value_type>& parse_ctx,
basic_format_parse_context<typename Context::char_type>& parse_ctx,
Context& ctx, Id arg_id) {
ctx.advance_to(
visit_format_arg(arg_formatter<Range>(ctx, &parse_ctx), ctx.arg(arg_id)));
ctx.advance_to(visit_format_arg(
arg_formatter<OutputIt, typename Context::char_type>(ctx, &parse_ctx),
ctx.arg(arg_id)));
}
// vformat_to is defined in a subnamespace to prevent ADL.
namespace cf {
template <typename Context, typename Range, typename CompiledFormat>
auto vformat_to(Range out, CompiledFormat& cf, basic_format_args<Context> args)
-> typename Context::iterator {
template <typename Context, typename OutputIt, typename CompiledFormat>
auto vformat_to(OutputIt out, CompiledFormat& cf,
basic_format_args<Context> args) -> typename Context::iterator {
using char_type = typename Context::char_type;
basic_format_parse_context<char_type> parse_ctx(
to_string_view(cf.format_str_));
Context ctx(out.begin(), args);
Context ctx(out, args);
const auto& parts = cf.parts();
for (auto part_it = std::begin(parts); part_it != std::end(parts);
@ -197,12 +229,12 @@ auto vformat_to(Range out, CompiledFormat& cf, basic_format_args<Context> args)
case format_part_t::kind::arg_index:
advance_to(parse_ctx, part.arg_id_end);
internal::format_arg<Range>(parse_ctx, ctx, value.arg_index);
detail::format_arg<OutputIt>(parse_ctx, ctx, value.arg_index);
break;
case format_part_t::kind::arg_name:
advance_to(parse_ctx, part.arg_id_end);
internal::format_arg<Range>(parse_ctx, ctx, value.str);
detail::format_arg<OutputIt>(parse_ctx, ctx, value.str);
break;
case format_part_t::kind::replacement: {
@ -226,7 +258,9 @@ auto vformat_to(Range out, CompiledFormat& cf, basic_format_args<Context> args)
advance_to(parse_ctx, part.arg_id_end);
ctx.advance_to(
visit_format_arg(arg_formatter<Range>(ctx, nullptr, &specs), arg));
visit_format_arg(arg_formatter<OutputIt, typename Context::char_type>(
ctx, nullptr, &specs),
arg));
break;
}
}
@ -240,7 +274,7 @@ struct basic_compiled_format {};
template <typename S, typename = void>
struct compiled_format_base : basic_compiled_format {
using char_type = char_t<S>;
using parts_container = std::vector<internal::format_part<char_type>>;
using parts_container = std::vector<detail::format_part<char_type>>;
parts_container compiled_parts;
@ -305,7 +339,7 @@ struct compiled_format_base<S, enable_if_t<is_compile_string<S>::value>>
const parts_container& parts() const {
static FMT_CONSTEXPR_DECL const auto compiled_parts =
compile_to_parts<char_type, num_format_parts>(
internal::to_string_view(S()));
detail::to_string_view(S()));
return compiled_parts.data;
}
};
@ -318,8 +352,8 @@ class compiled_format : private compiled_format_base<S> {
private:
basic_string_view<char_type> format_str_;
template <typename Context, typename Range, typename CompiledFormat>
friend auto cf::vformat_to(Range out, CompiledFormat& cf,
template <typename Context, typename OutputIt, typename CompiledFormat>
friend auto cf::vformat_to(OutputIt out, CompiledFormat& cf,
basic_format_args<Context> args) ->
typename Context::iterator;
@ -359,8 +393,7 @@ template <typename Char> struct text {
template <typename OutputIt, typename... Args>
OutputIt format(OutputIt out, const Args&...) const {
// TODO: reserve
return copy_str<Char>(data.begin(), data.end(), out);
return write<Char>(out, data);
}
};
@ -373,33 +406,6 @@ constexpr text<Char> make_text(basic_string_view<Char> s, size_t pos,
return {{&s[pos], size}};
}
template <typename Char, typename OutputIt, typename T,
std::enable_if_t<std::is_integral_v<T>, int> = 0>
OutputIt format_default(OutputIt out, T value) {
// TODO: reserve
format_int fi(value);
return std::copy(fi.data(), fi.data() + fi.size(), out);
}
template <typename Char, typename OutputIt>
OutputIt format_default(OutputIt out, double value) {
writer w(out);
w.write(value);
return w.out();
}
template <typename Char, typename OutputIt>
OutputIt format_default(OutputIt out, Char value) {
*out++ = value;
return out;
}
template <typename Char, typename OutputIt>
OutputIt format_default(OutputIt out, const Char* value) {
auto length = std::char_traits<Char>::length(value);
return copy_str<Char>(value, value + length, out);
}
// A replacement field that refers to argument N.
template <typename Char, typename T, int N> struct field {
using char_type = Char;
@ -408,13 +414,30 @@ template <typename Char, typename T, int N> struct field {
OutputIt format(OutputIt out, const Args&... args) const {
// This ensures that the argument type is convertile to `const T&`.
const T& arg = get<N>(args...);
return format_default<Char>(out, arg);
return write<Char>(out, arg);
}
};
template <typename Char, typename T, int N>
struct is_compiled_format<field<Char, T, N>> : std::true_type {};
// A replacement field that refers to argument N and has format specifiers.
template <typename Char, typename T, int N> struct spec_field {
using char_type = Char;
mutable formatter<T, Char> fmt;
template <typename OutputIt, typename... Args>
OutputIt format(OutputIt out, const Args&... args) const {
// This ensures that the argument type is convertile to `const T&`.
const T& arg = get<N>(args...);
basic_format_context<OutputIt, Char> ctx(out, {});
return fmt.format(arg, ctx);
}
};
template <typename Char, typename T, int N>
struct is_compiled_format<spec_field<Char, T, N>> : std::true_type {};
template <typename L, typename R> struct concat {
L lhs;
R rhs;
@ -450,7 +473,8 @@ constexpr auto compile_format_string(S format_str);
template <typename Args, size_t POS, int ID, typename T, typename S>
constexpr auto parse_tail(T head, S format_str) {
if constexpr (POS != to_string_view(format_str).size()) {
if constexpr (POS !=
basic_string_view<typename S::char_type>(format_str).size()) {
constexpr auto tail = compile_format_string<Args, POS, ID>(format_str);
if constexpr (std::is_same<remove_cvref_t<decltype(tail)>,
unknown_format>())
@ -462,6 +486,21 @@ constexpr auto parse_tail(T head, S format_str) {
}
}
template <typename T, typename Char> struct parse_specs_result {
formatter<T, Char> fmt;
size_t end;
};
template <typename T, typename Char>
constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
size_t pos) {
str.remove_prefix(pos);
auto ctx = basic_format_parse_context<Char>(str);
auto f = formatter<T, Char>();
auto end = f.parse(ctx);
return {f, pos + (end - str.data()) + 1};
}
// Compiles a non-empty format string and returns the compiled representation
// or unknown_format() on unrecognized input.
template <typename Args, size_t POS, int ID, typename S>
@ -475,12 +514,13 @@ constexpr auto compile_format_string(S format_str) {
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
} else if constexpr (str[POS + 1] == '}') {
using type = get_type<ID, Args>;
if constexpr (std::is_same<type, int>::value) {
return parse_tail<Args, POS + 2, ID + 1>(field<char_type, type, ID>(),
format_str);
} else {
return unknown_format();
}
return parse_tail<Args, POS + 2, ID + 1>(field<char_type, type, ID>(),
format_str);
} else if constexpr (str[POS + 1] == ':') {
using type = get_type<ID, Args>;
constexpr auto result = parse_specs<type>(str, POS + 2);
return parse_tail<Args, result.end, ID + 1>(
spec_field<char_type, type, ID>{result.fmt}, format_str);
} else {
return unknown_format();
}
@ -494,100 +534,130 @@ constexpr auto compile_format_string(S format_str) {
format_str);
}
}
#endif // __cpp_if_constexpr
} // namespace internal
#if FMT_USE_CONSTEXPR
# ifdef __cpp_if_constexpr
template <typename... Args, typename S,
FMT_ENABLE_IF(is_compile_string<S>::value)>
FMT_ENABLE_IF(is_compile_string<S>::value ||
detail::is_compiled_string<S>::value)>
constexpr auto compile(S format_str) {
constexpr basic_string_view<typename S::char_type> str = format_str;
if constexpr (str.size() == 0) {
return internal::make_text(str, 0, 0);
return detail::make_text(str, 0, 0);
} else {
constexpr auto result =
internal::compile_format_string<internal::type_list<Args...>, 0, 0>(
detail::compile_format_string<detail::type_list<Args...>, 0, 0>(
format_str);
if constexpr (std::is_same<remove_cvref_t<decltype(result)>,
internal::unknown_format>()) {
return internal::compiled_format<S, Args...>(to_string_view(format_str));
detail::unknown_format>()) {
return detail::compiled_format<S, Args...>(to_string_view(format_str));
} else {
return result;
}
}
}
template <typename CompiledFormat, typename... Args,
typename Char = typename CompiledFormat::char_type,
FMT_ENABLE_IF(internal::is_compiled_format<CompiledFormat>::value)>
std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) {
basic_memory_buffer<Char> buffer;
cf.format(std::back_inserter(buffer), args...);
return to_string(buffer);
}
template <typename OutputIt, typename CompiledFormat, typename... Args,
FMT_ENABLE_IF(internal::is_compiled_format<CompiledFormat>::value)>
OutputIt format_to(OutputIt out, const CompiledFormat& cf,
const Args&... args) {
return cf.format(out, args...);
}
# else
#else
template <typename... Args, typename S,
FMT_ENABLE_IF(is_compile_string<S>::value)>
constexpr auto compile(S format_str) -> internal::compiled_format<S, Args...> {
return internal::compiled_format<S, Args...>(to_string_view(format_str));
constexpr auto compile(S format_str) -> detail::compiled_format<S, Args...> {
return detail::compiled_format<S, Args...>(to_string_view(format_str));
}
# endif // __cpp_if_constexpr
#endif // FMT_USE_CONSTEXPR
#endif // __cpp_if_constexpr
// Compiles the format string which must be a string literal.
template <typename... Args, typename Char, size_t N>
auto compile(const Char (&format_str)[N])
-> internal::compiled_format<const Char*, Args...> {
return internal::compiled_format<const Char*, Args...>(
-> detail::compiled_format<const Char*, Args...> {
return detail::compiled_format<const Char*, Args...>(
basic_string_view<Char>(format_str, N - 1));
}
} // namespace detail
// DEPRECATED! use FMT_COMPILE instead.
template <typename... Args>
FMT_DEPRECATED auto compile(const Args&... args)
-> decltype(detail::compile(args...)) {
return detail::compile(args...);
}
#if FMT_USE_CONSTEXPR
# ifdef __cpp_if_constexpr
template <typename CompiledFormat, typename... Args,
typename Char = typename CompiledFormat::char_type,
FMT_ENABLE_IF(std::is_base_of<internal::basic_compiled_format,
CompiledFormat>::value)>
std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) {
FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
FMT_INLINE std::basic_string<Char> format(const CompiledFormat& cf,
const Args&... args) {
basic_memory_buffer<Char> buffer;
using range = buffer_range<Char>;
using context = buffer_context<Char>;
internal::cf::vformat_to<context>(range(buffer), cf,
make_format_args<context>(args...));
detail::buffer<Char>& base = buffer;
cf.format(std::back_inserter(base), args...);
return to_string(buffer);
}
template <typename OutputIt, typename CompiledFormat, typename... Args,
FMT_ENABLE_IF(std::is_base_of<internal::basic_compiled_format,
FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
OutputIt format_to(OutputIt out, const CompiledFormat& cf,
const Args&... args) {
return cf.format(out, args...);
}
# endif // __cpp_if_constexpr
#endif // FMT_USE_CONSTEXPR
template <typename CompiledFormat, typename... Args,
typename Char = typename CompiledFormat::char_type,
FMT_ENABLE_IF(std::is_base_of<detail::basic_compiled_format,
CompiledFormat>::value)>
std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) {
basic_memory_buffer<Char> buffer;
using context = buffer_context<Char>;
detail::buffer<Char>& base = buffer;
detail::cf::vformat_to<context>(std::back_inserter(base), cf,
make_format_args<context>(args...));
return to_string(buffer);
}
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
FMT_INLINE std::basic_string<typename S::char_type> format(const S&,
Args&&... args) {
constexpr basic_string_view<typename S::char_type> str = S();
if (str.size() == 2 && str[0] == '{' && str[1] == '}')
return fmt::to_string(detail::first(args...));
constexpr auto compiled = detail::compile<Args...>(S());
return format(compiled, std::forward<Args>(args)...);
}
template <typename OutputIt, typename CompiledFormat, typename... Args,
FMT_ENABLE_IF(std::is_base_of<detail::basic_compiled_format,
CompiledFormat>::value)>
OutputIt format_to(OutputIt out, const CompiledFormat& cf,
const Args&... args) {
using char_type = typename CompiledFormat::char_type;
using range = internal::output_range<OutputIt, char_type>;
using context = format_context_t<OutputIt, char_type>;
return internal::cf::vformat_to<context>(range(out), cf,
make_format_args<context>(args...));
return detail::cf::vformat_to<context>(out, cf,
make_format_args<context>(args...));
}
template <typename OutputIt, typename CompiledFormat, typename... Args,
FMT_ENABLE_IF(internal::is_output_iterator<OutputIt>::value)>
template <typename OutputIt, typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
OutputIt format_to(OutputIt out, const S&, const Args&... args) {
constexpr auto compiled = detail::compile<Args...>(S());
return format_to(out, compiled, args...);
}
template <
typename OutputIt, typename CompiledFormat, typename... Args,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt>::value&& std::is_base_of<
detail::basic_compiled_format, CompiledFormat>::value)>
format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n,
const CompiledFormat& cf,
const Args&... args) {
auto it =
format_to(internal::truncating_iterator<OutputIt>(out, n), cf, args...);
format_to(detail::truncating_iterator<OutputIt>(out, n), cf, args...);
return {it.base(), it.count()};
}
template <typename CompiledFormat, typename... Args>
std::size_t formatted_size(const CompiledFormat& cf, const Args&... args) {
return format_to(internal::counting_iterator(), cf, args...).count();
size_t formatted_size(const CompiledFormat& cf, const Args&... args) {
return format_to(detail::counting_iterator(), cf, args...).count();
}
FMT_END_NAMESPACE

File diff suppressed because it is too large Load diff

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@ -15,6 +15,7 @@
#include <cstdarg>
#include <cstring> // for std::memmove
#include <cwchar>
#include <exception>
#include "format.h"
#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
@ -22,8 +23,16 @@
#endif
#ifdef _WIN32
# if !defined(NOMINMAX) && !defined(WIN32_LEAN_AND_MEAN)
# define NOMINMAX
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# undef WIN32_LEAN_AND_MEAN
# undef NOMINMAX
# else
# include <windows.h>
# endif
# include <io.h>
# include <windows.h>
#endif
#ifdef _MSC_VER
@ -33,15 +42,19 @@
// Dummy implementations of strerror_r and strerror_s called if corresponding
// system functions are not available.
inline fmt::internal::null<> strerror_r(int, char*, ...) { return {}; }
inline fmt::internal::null<> strerror_s(char*, std::size_t, ...) { return {}; }
inline fmt::detail::null<> strerror_r(int, char*, ...) { return {}; }
inline fmt::detail::null<> strerror_s(char*, size_t, ...) { return {}; }
FMT_BEGIN_NAMESPACE
namespace internal {
namespace detail {
FMT_FUNC void assert_fail(const char* file, int line, const char* message) {
print(stderr, "{}:{}: assertion failed: {}", file, line, message);
std::abort();
// Use unchecked std::fprintf to avoid triggering another assertion when
// writing to stderr fails
std::fprintf(stderr, "%s:%d: assertion failed: %s", file, line, message);
// Chosen instead of std::abort to satisfy Clang in CUDA mode during device
// code pass.
std::terminate();
}
#ifndef _MSC_VER
@ -67,14 +80,14 @@ inline int fmt_snprintf(char* buffer, size_t size, const char* format, ...) {
// other - failure
// Buffer should be at least of size 1.
FMT_FUNC int safe_strerror(int error_code, char*& buffer,
std::size_t buffer_size) FMT_NOEXCEPT {
size_t buffer_size) FMT_NOEXCEPT {
FMT_ASSERT(buffer != nullptr && buffer_size != 0, "invalid buffer");
class dispatcher {
private:
int error_code_;
char*& buffer_;
std::size_t buffer_size_;
size_t buffer_size_;
// A noop assignment operator to avoid bogus warnings.
void operator=(const dispatcher&) {}
@ -97,7 +110,7 @@ FMT_FUNC int safe_strerror(int error_code, char*& buffer,
// Handle the case when strerror_r is not available.
FMT_MAYBE_UNUSED
int handle(internal::null<>) {
int handle(detail::null<>) {
return fallback(strerror_s(buffer_, buffer_size_, error_code_));
}
@ -111,7 +124,7 @@ FMT_FUNC int safe_strerror(int error_code, char*& buffer,
#if !FMT_MSC_VER
// Fallback to strerror if strerror_r and strerror_s are not available.
int fallback(internal::null<>) {
int fallback(detail::null<>) {
errno = 0;
buffer_ = strerror(error_code_);
return errno;
@ -119,7 +132,7 @@ FMT_FUNC int safe_strerror(int error_code, char*& buffer,
#endif
public:
dispatcher(int err_code, char*& buf, std::size_t buf_size)
dispatcher(int err_code, char*& buf, size_t buf_size)
: error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {}
int run() { return handle(strerror_r(error_code_, buffer_, buffer_size_)); }
@ -127,7 +140,7 @@ FMT_FUNC int safe_strerror(int error_code, char*& buffer,
return dispatcher(error_code, buffer, buffer_size).run();
}
FMT_FUNC void format_error_code(internal::buffer<char>& out, int error_code,
FMT_FUNC void format_error_code(detail::buffer<char>& out, int error_code,
string_view message) FMT_NOEXCEPT {
// Report error code making sure that the output fits into
// inline_buffer_size to avoid dynamic memory allocation and potential
@ -136,20 +149,17 @@ FMT_FUNC void format_error_code(internal::buffer<char>& out, int error_code,
static const char SEP[] = ": ";
static const char ERROR_STR[] = "error ";
// Subtract 2 to account for terminating null characters in SEP and ERROR_STR.
std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
auto abs_value = static_cast<uint32_or_64_or_128_t<int>>(error_code);
if (internal::is_negative(error_code)) {
if (detail::is_negative(error_code)) {
abs_value = 0 - abs_value;
++error_code_size;
}
error_code_size += internal::to_unsigned(internal::count_digits(abs_value));
internal::writer w(out);
if (message.size() <= inline_buffer_size - error_code_size) {
w.write(message);
w.write(SEP);
}
w.write(ERROR_STR);
w.write(error_code);
error_code_size += detail::to_unsigned(detail::count_digits(abs_value));
auto it = std::back_inserter(out);
if (message.size() <= inline_buffer_size - error_code_size)
format_to(it, "{}{}", message, SEP);
format_to(it, "{}{}", ERROR_STR, error_code);
assert(out.size() <= inline_buffer_size);
}
@ -168,10 +178,10 @@ FMT_FUNC void fwrite_fully(const void* ptr, size_t size, size_t count,
size_t written = std::fwrite(ptr, size, count, stream);
if (written < count) FMT_THROW(system_error(errno, "cannot write to file"));
}
} // namespace internal
} // namespace detail
#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
namespace internal {
namespace detail {
template <typename Locale>
locale_ref::locale_ref(const Locale& loc) : locale_(&loc) {
@ -194,18 +204,16 @@ template <typename Char> FMT_FUNC Char decimal_point_impl(locale_ref loc) {
return std::use_facet<std::numpunct<Char>>(loc.get<std::locale>())
.decimal_point();
}
} // namespace internal
} // namespace detail
#else
template <typename Char>
FMT_FUNC std::string internal::grouping_impl(locale_ref) {
FMT_FUNC std::string detail::grouping_impl(locale_ref) {
return "\03";
}
template <typename Char>
FMT_FUNC Char internal::thousands_sep_impl(locale_ref) {
template <typename Char> FMT_FUNC Char detail::thousands_sep_impl(locale_ref) {
return FMT_STATIC_THOUSANDS_SEPARATOR;
}
template <typename Char>
FMT_FUNC Char internal::decimal_point_impl(locale_ref) {
template <typename Char> FMT_FUNC Char detail::decimal_point_impl(locale_ref) {
return '.';
}
#endif
@ -222,9 +230,9 @@ FMT_FUNC void system_error::init(int err_code, string_view format_str,
base = std::runtime_error(to_string(buffer));
}
namespace internal {
namespace detail {
template <> FMT_FUNC int count_digits<4>(internal::fallback_uintptr n) {
template <> FMT_FUNC int count_digits<4>(detail::fallback_uintptr n) {
// fallback_uintptr is always stored in little endian.
int i = static_cast<int>(sizeof(void*)) - 1;
while (i > 0 && n.value[i] == 0) --i;
@ -233,12 +241,27 @@ template <> FMT_FUNC int count_digits<4>(internal::fallback_uintptr n) {
}
template <typename T>
const char basic_data<T>::digits[] =
"0001020304050607080910111213141516171819"
"2021222324252627282930313233343536373839"
"4041424344454647484950515253545556575859"
"6061626364656667686970717273747576777879"
"8081828384858687888990919293949596979899";
const typename basic_data<T>::digit_pair basic_data<T>::digits[] = {
{'0', '0'}, {'0', '1'}, {'0', '2'}, {'0', '3'}, {'0', '4'},
{'0', '5'}, {'0', '6'}, {'0', '7'}, {'0', '8'}, {'0', '9'},
{'1', '0'}, {'1', '1'}, {'1', '2'}, {'1', '3'}, {'1', '4'},
{'1', '5'}, {'1', '6'}, {'1', '7'}, {'1', '8'}, {'1', '9'},
{'2', '0'}, {'2', '1'}, {'2', '2'}, {'2', '3'}, {'2', '4'},
{'2', '5'}, {'2', '6'}, {'2', '7'}, {'2', '8'}, {'2', '9'},
{'3', '0'}, {'3', '1'}, {'3', '2'}, {'3', '3'}, {'3', '4'},
{'3', '5'}, {'3', '6'}, {'3', '7'}, {'3', '8'}, {'3', '9'},
{'4', '0'}, {'4', '1'}, {'4', '2'}, {'4', '3'}, {'4', '4'},
{'4', '5'}, {'4', '6'}, {'4', '7'}, {'4', '8'}, {'4', '9'},
{'5', '0'}, {'5', '1'}, {'5', '2'}, {'5', '3'}, {'5', '4'},
{'5', '5'}, {'5', '6'}, {'5', '7'}, {'5', '8'}, {'5', '9'},
{'6', '0'}, {'6', '1'}, {'6', '2'}, {'6', '3'}, {'6', '4'},
{'6', '5'}, {'6', '6'}, {'6', '7'}, {'6', '8'}, {'6', '9'},
{'7', '0'}, {'7', '1'}, {'7', '2'}, {'7', '3'}, {'7', '4'},
{'7', '5'}, {'7', '6'}, {'7', '7'}, {'7', '8'}, {'7', '9'},
{'8', '0'}, {'8', '1'}, {'8', '2'}, {'8', '3'}, {'8', '4'},
{'8', '5'}, {'8', '6'}, {'8', '7'}, {'8', '8'}, {'8', '9'},
{'9', '0'}, {'9', '1'}, {'9', '2'}, {'9', '3'}, {'9', '4'},
{'9', '5'}, {'9', '6'}, {'9', '7'}, {'9', '8'}, {'9', '9'}};
template <typename T>
const char basic_data<T>::hex_digits[] = "0123456789abcdef";
@ -317,6 +340,10 @@ const char basic_data<T>::background_color[] = "\x1b[48;2;";
template <typename T> const char basic_data<T>::reset_color[] = "\x1b[0m";
template <typename T> const wchar_t basic_data<T>::wreset_color[] = L"\x1b[0m";
template <typename T> const char basic_data<T>::signs[] = {0, '-', '+', ' '};
template <typename T>
const char basic_data<T>::left_padding_shifts[] = {31, 31, 0, 1, 0};
template <typename T>
const char basic_data<T>::right_padding_shifts[] = {0, 31, 0, 1, 0};
template <typename T> struct bits {
static FMT_CONSTEXPR_DECL const int value =
@ -576,9 +603,10 @@ class bigint {
void operator=(const bigint&) = delete;
void assign(const bigint& other) {
bigits_.resize(other.bigits_.size());
auto size = other.bigits_.size();
bigits_.resize(size);
auto data = other.bigits_.data();
std::copy(data, data + other.bigits_.size(), bigits_.data());
std::copy(data, data + size, make_checked(bigits_.data(), size));
exp_ = other.exp_;
}
@ -594,7 +622,7 @@ class bigint {
int num_bigits() const { return static_cast<int>(bigits_.size()) + exp_; }
bigint& operator<<=(int shift) {
FMT_NOINLINE bigint& operator<<=(int shift) {
assert(shift >= 0);
exp_ += shift / bigit_bits;
shift %= bigit_bits;
@ -1125,7 +1153,7 @@ int snprintf_float(T value, int precision, float_specs specs,
precision = (precision >= 0 ? precision : 6) - 1;
// Build the format string.
enum { max_format_size = 7 }; // Ths longest format is "%#.*Le".
enum { max_format_size = 7 }; // The longest format is "%#.*Le".
char format[max_format_size];
char* format_ptr = format;
*format_ptr++ = '%';
@ -1145,13 +1173,13 @@ int snprintf_float(T value, int precision, float_specs specs,
for (;;) {
auto begin = buf.data() + offset;
auto capacity = buf.capacity() - offset;
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
#ifdef FMT_FUZZ
if (precision > 100000)
throw std::runtime_error(
"fuzz mode - avoid large allocation inside snprintf");
#endif
// Suppress the warning about a nonliteral format string.
// Cannot use auto becase of a bug in MinGW (#1532).
// Cannot use auto because of a bug in MinGW (#1532).
int (*snprintf_ptr)(char*, size_t, const char*, ...) = FMT_SNPRINTF;
int result = precision >= 0
? snprintf_ptr(begin, capacity, format, precision, value)
@ -1268,14 +1296,14 @@ FMT_FUNC const char* utf8_decode(const char* buf, uint32_t* c, int* e) {
return next;
}
} // namespace internal
} // namespace detail
template <> struct formatter<internal::bigint> {
template <> struct formatter<detail::bigint> {
format_parse_context::iterator parse(format_parse_context& ctx) {
return ctx.begin();
}
format_context::iterator format(const internal::bigint& n,
format_context::iterator format(const detail::bigint& n,
format_context& ctx) {
auto out = ctx.out();
bool first = true;
@ -1289,12 +1317,12 @@ template <> struct formatter<internal::bigint> {
out = format_to(out, "{:08x}", value);
}
if (n.exp_ > 0)
out = format_to(out, "p{}", n.exp_ * internal::bigint::bigit_bits);
out = format_to(out, "p{}", n.exp_ * detail::bigint::bigit_bits);
return out;
}
};
FMT_FUNC internal::utf8_to_utf16::utf8_to_utf16(string_view s) {
FMT_FUNC detail::utf8_to_utf16::utf8_to_utf16(string_view s) {
auto transcode = [this](const char* p) {
auto cp = uint32_t();
auto error = 0;
@ -1325,7 +1353,7 @@ FMT_FUNC internal::utf8_to_utf16::utf8_to_utf16(string_view s) {
buffer_.push_back(0);
}
FMT_FUNC void format_system_error(internal::buffer<char>& out, int error_code,
FMT_FUNC void format_system_error(detail::buffer<char>& out, int error_code,
string_view message) FMT_NOEXCEPT {
FMT_TRY {
memory_buffer buf;
@ -1333,12 +1361,9 @@ FMT_FUNC void format_system_error(internal::buffer<char>& out, int error_code,
for (;;) {
char* system_message = &buf[0];
int result =
internal::safe_strerror(error_code, system_message, buf.size());
detail::safe_strerror(error_code, system_message, buf.size());
if (result == 0) {
internal::writer w(out);
w.write(message);
w.write(": ");
w.write(system_message);
format_to(std::back_inserter(out), "{}: {}", message, system_message);
return;
}
if (result != ERANGE)
@ -1350,7 +1375,7 @@ FMT_FUNC void format_system_error(internal::buffer<char>& out, int error_code,
format_error_code(out, error_code, message);
}
FMT_FUNC void internal::error_handler::on_error(const char* message) {
FMT_FUNC void detail::error_handler::on_error(const char* message) {
FMT_THROW(format_error(message));
}
@ -1359,14 +1384,39 @@ FMT_FUNC void report_system_error(int error_code,
report_error(format_system_error, error_code, message);
}
struct stringifier {
template <typename T> FMT_INLINE std::string operator()(T value) const {
return to_string(value);
}
std::string operator()(basic_format_arg<format_context>::handle h) const {
memory_buffer buf;
detail::buffer<char>& base = buf;
format_parse_context parse_ctx({});
format_context format_ctx(std::back_inserter(base), {}, {});
h.format(parse_ctx, format_ctx);
return to_string(buf);
}
};
FMT_FUNC std::string detail::vformat(string_view format_str, format_args args) {
if (format_str.size() == 2 && equal2(format_str.data(), "{}")) {
auto arg = args.get(0);
if (!arg) error_handler().on_error("argument not found");
return visit_format_arg(stringifier(), arg);
}
memory_buffer buffer;
detail::vformat_to(buffer, format_str, args);
return to_string(buffer);
}
FMT_FUNC void vprint(std::FILE* f, string_view format_str, format_args args) {
memory_buffer buffer;
internal::vformat_to(buffer, format_str,
basic_format_args<buffer_context<char>>(args));
detail::vformat_to(buffer, format_str,
basic_format_args<buffer_context<char>>(args));
#ifdef _WIN32
auto fd = _fileno(f);
if (_isatty(fd)) {
internal::utf8_to_utf16 u16(string_view(buffer.data(), buffer.size()));
detail::utf8_to_utf16 u16(string_view(buffer.data(), buffer.size()));
auto written = DWORD();
if (!WriteConsoleW(reinterpret_cast<HANDLE>(_get_osfhandle(fd)),
u16.c_str(), static_cast<DWORD>(u16.size()), &written,
@ -1376,16 +1426,16 @@ FMT_FUNC void vprint(std::FILE* f, string_view format_str, format_args args) {
return;
}
#endif
internal::fwrite_fully(buffer.data(), 1, buffer.size(), f);
detail::fwrite_fully(buffer.data(), 1, buffer.size(), f);
}
#ifdef _WIN32
// Print assuming legacy (non-Unicode) encoding.
FMT_FUNC void internal::vprint_mojibake(std::FILE* f, string_view format_str,
format_args args) {
FMT_FUNC void detail::vprint_mojibake(std::FILE* f, string_view format_str,
format_args args) {
memory_buffer buffer;
internal::vformat_to(buffer, format_str,
basic_format_args<buffer_context<char>>(args));
detail::vformat_to(buffer, format_str,
basic_format_args<buffer_context<char>>(args));
fwrite_fully(buffer.data(), 1, buffer.size(), f);
}
#endif

File diff suppressed because it is too large Load diff

View file

@ -14,15 +14,15 @@
FMT_BEGIN_NAMESPACE
namespace internal {
namespace detail {
template <typename Char>
typename buffer_context<Char>::iterator vformat_to(
const std::locale& loc, buffer<Char>& buf,
basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
using range = buffer_range<Char>;
return vformat_to<arg_formatter<range>>(buf, to_string_view(format_str), args,
internal::locale_ref(loc));
using af = arg_formatter<typename buffer_context<Char>::iterator, Char>;
return vformat_to<af>(std::back_inserter(buf), to_string_view(format_str),
args, detail::locale_ref(loc));
}
template <typename Char>
@ -30,43 +30,43 @@ std::basic_string<Char> vformat(
const std::locale& loc, basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
internal::vformat_to(loc, buffer, format_str, args);
detail::vformat_to(loc, buffer, format_str, args);
return fmt::to_string(buffer);
}
} // namespace internal
} // namespace detail
template <typename S, typename Char = char_t<S>>
inline std::basic_string<Char> vformat(
const std::locale& loc, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
return internal::vformat(loc, to_string_view(format_str), args);
return detail::vformat(loc, to_string_view(format_str), args);
}
template <typename S, typename... Args, typename Char = char_t<S>>
inline std::basic_string<Char> format(const std::locale& loc,
const S& format_str, Args&&... args) {
return internal::vformat(
return detail::vformat(
loc, to_string_view(format_str),
internal::make_args_checked<Args...>(format_str, args...));
detail::make_args_checked<Args...>(format_str, args...));
}
template <typename S, typename OutputIt, typename... Args,
typename Char = enable_if_t<
internal::is_output_iterator<OutputIt>::value, char_t<S>>>
detail::is_output_iterator<OutputIt>::value, char_t<S>>>
inline OutputIt vformat_to(
OutputIt out, const std::locale& loc, const S& format_str,
format_args_t<type_identity_t<OutputIt>, Char> args) {
using range = internal::output_range<OutputIt, Char>;
return vformat_to<arg_formatter<range>>(
range(out), to_string_view(format_str), args, internal::locale_ref(loc));
using af = detail::arg_formatter<OutputIt, Char>;
return vformat_to<af>(out, to_string_view(format_str), args,
detail::locale_ref(loc));
}
template <typename OutputIt, typename S, typename... Args,
FMT_ENABLE_IF(internal::is_output_iterator<OutputIt>::value&&
internal::is_string<S>::value)>
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt>::value&&
detail::is_string<S>::value)>
inline OutputIt format_to(OutputIt out, const std::locale& loc,
const S& format_str, Args&&... args) {
internal::check_format_string<Args...>(format_str);
detail::check_format_string<Args...>(format_str);
using context = format_context_t<OutputIt, char_t<S>>;
format_arg_store<context, Args...> as{args...};
return vformat_to(out, loc, to_string_view(format_str),

View file

@ -50,7 +50,7 @@
#ifdef FMT_SYSTEM
# define FMT_POSIX_CALL(call) FMT_SYSTEM(call)
#else
# define FMT_SYSTEM(call) call
# define FMT_SYSTEM(call) ::call
# ifdef _WIN32
// Fix warnings about deprecated symbols.
# define FMT_POSIX_CALL(call) ::_##call
@ -133,7 +133,7 @@ class error_code {
};
#ifdef _WIN32
namespace internal {
namespace detail {
// A converter from UTF-16 to UTF-8.
// It is only provided for Windows since other systems support UTF-8 natively.
class utf16_to_utf8 {
@ -156,7 +156,7 @@ class utf16_to_utf8 {
FMT_API void format_windows_error(buffer<char>& out, int error_code,
string_view message) FMT_NOEXCEPT;
} // namespace internal
} // namespace detail
/** A Windows error. */
class windows_error : public system_error {
@ -277,7 +277,8 @@ class file {
enum {
RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only.
WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only.
RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing.
RDWR = FMT_POSIX(O_RDWR), // Open for reading and writing.
CREATE = FMT_POSIX(O_CREAT) // Create if the file doesn't exist.
};
// Constructs a file object which doesn't represent any file.
@ -313,10 +314,10 @@ class file {
FMT_API long long size() const;
// Attempts to read count bytes from the file into the specified buffer.
FMT_API std::size_t read(void* buffer, std::size_t count);
FMT_API size_t read(void* buffer, size_t count);
// Attempts to write count bytes from the specified buffer to the file.
FMT_API std::size_t write(const void* buffer, std::size_t count);
FMT_API size_t write(const void* buffer, size_t count);
// Duplicates a file descriptor with the dup function and returns
// the duplicate as a file object.
@ -341,6 +342,63 @@ class file {
// Returns the memory page size.
long getpagesize();
class direct_buffered_file;
template <typename S, typename... Args>
void print(direct_buffered_file& f, const S& format_str,
const Args&... args);
// A buffered file with a direct buffer access and no synchronization.
class direct_buffered_file {
private:
file file_;
enum { buffer_size = 4096 };
char buffer_[buffer_size];
int pos_;
void flush() {
if (pos_ == 0) return;
file_.write(buffer_, pos_);
pos_ = 0;
}
int free_capacity() const { return buffer_size - pos_; }
public:
direct_buffered_file(cstring_view path, int oflag)
: file_(path, oflag), pos_(0) {}
~direct_buffered_file() {
flush();
}
void close() {
flush();
file_.close();
}
template <typename S, typename... Args>
friend void print(direct_buffered_file& f, const S& format_str,
const Args&... args) {
// We could avoid double buffering.
auto buf = fmt::memory_buffer();
fmt::format_to(std::back_inserter(buf), format_str, args...);
auto remaining_pos = 0;
auto remaining_size = buf.size();
while (remaining_size > detail::to_unsigned(f.free_capacity())) {
auto size = f.free_capacity();
memcpy(f.buffer_ + f.pos_, buf.data() + remaining_pos, size);
f.pos_ += size;
f.flush();
remaining_pos += size;
remaining_size -= size;
}
memcpy(f.buffer_ + f.pos_, buf.data() + remaining_pos, remaining_size);
f.pos_ += static_cast<int>(remaining_size);
}
};
#endif // FMT_USE_FCNTL
#ifdef FMT_LOCALE

View file

@ -9,10 +9,15 @@
#define FMT_OSTREAM_H_
#include <ostream>
#include "format.h"
FMT_BEGIN_NAMESPACE
namespace internal {
template <typename Char> class basic_printf_parse_context;
template <typename OutputIt, typename Char> class basic_printf_context;
namespace detail {
template <class Char> class formatbuf : public std::basic_streambuf<Char> {
private:
@ -75,7 +80,7 @@ template <typename T, typename Char> class is_streamable {
// Write the content of buf to os.
template <typename Char>
void write(std::basic_ostream<Char>& os, buffer<Char>& buf) {
void write_buffer(std::basic_ostream<Char>& os, buffer<Char>& buf) {
const Char* buf_data = buf.data();
using unsigned_streamsize = std::make_unsigned<std::streamsize>::type;
unsigned_streamsize size = buf.size();
@ -93,34 +98,53 @@ void format_value(buffer<Char>& buf, const T& value,
locale_ref loc = locale_ref()) {
formatbuf<Char> format_buf(buf);
std::basic_ostream<Char> output(&format_buf);
#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
if (loc) output.imbue(loc.get<std::locale>());
#endif
output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
#endif
output << value;
output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
buf.resize(buf.size());
}
// Formats an object of type T that has an overloaded ostream operator<<.
template <typename T, typename Char>
struct fallback_formatter<T, Char, enable_if_t<is_streamable<T, Char>::value>>
: formatter<basic_string_view<Char>, Char> {
template <typename Context>
auto format(const T& value, Context& ctx) -> decltype(ctx.out()) {
: private formatter<basic_string_view<Char>, Char> {
FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx)
-> decltype(ctx.begin()) {
return formatter<basic_string_view<Char>, Char>::parse(ctx);
}
template <typename ParseCtx,
FMT_ENABLE_IF(std::is_same<
ParseCtx, basic_printf_parse_context<Char>>::value)>
auto parse(ParseCtx& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
}
template <typename OutputIt>
auto format(const T& value, basic_format_context<OutputIt, Char>& ctx)
-> OutputIt {
basic_memory_buffer<Char> buffer;
format_value(buffer, value, ctx.locale());
basic_string_view<Char> str(buffer.data(), buffer.size());
return formatter<basic_string_view<Char>, Char>::format(str, ctx);
}
template <typename OutputIt>
auto format(const T& value, basic_printf_context<OutputIt, Char>& ctx)
-> OutputIt {
basic_memory_buffer<Char> buffer;
format_value(buffer, value, ctx.locale());
return std::copy(buffer.begin(), buffer.end(), ctx.out());
}
};
} // namespace internal
} // namespace detail
template <typename Char>
void vprint(std::basic_ostream<Char>& os, basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
internal::vformat_to(buffer, format_str, args);
internal::write(os, buffer);
detail::vformat_to(buffer, format_str, args);
detail::write_buffer(os, buffer);
}
/**
@ -133,10 +157,10 @@ void vprint(std::basic_ostream<Char>& os, basic_string_view<Char> format_str,
\endrst
*/
template <typename S, typename... Args,
typename Char = enable_if_t<internal::is_string<S>::value, char_t<S>>>
typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
void print(std::basic_ostream<Char>& os, const S& format_str, Args&&... args) {
vprint(os, to_string_view(format_str),
internal::make_args_checked<Args...>(format_str, args...));
detail::make_args_checked<Args...>(format_str, args...));
}
FMT_END_NAMESPACE

View file

@ -14,7 +14,7 @@
#include "ostream.h"
FMT_BEGIN_NAMESPACE
namespace internal {
namespace detail {
// Checks if a value fits in int - used to avoid warnings about comparing
// signed and unsigned integers.
@ -90,11 +90,11 @@ template <typename T, typename Context> class arg_converter {
if (const_check(sizeof(target_type) <= sizeof(int))) {
// Extra casts are used to silence warnings.
if (is_signed) {
arg_ = internal::make_arg<Context>(
arg_ = detail::make_arg<Context>(
static_cast<int>(static_cast<target_type>(value)));
} else {
using unsigned_type = typename make_unsigned_or_bool<target_type>::type;
arg_ = internal::make_arg<Context>(
arg_ = detail::make_arg<Context>(
static_cast<unsigned>(static_cast<unsigned_type>(value)));
}
} else {
@ -102,9 +102,9 @@ template <typename T, typename Context> class arg_converter {
// glibc's printf doesn't sign extend arguments of smaller types:
// std::printf("%lld", -42); // prints "4294967254"
// but we don't have to do the same because it's a UB.
arg_ = internal::make_arg<Context>(static_cast<long long>(value));
arg_ = detail::make_arg<Context>(static_cast<long long>(value));
} else {
arg_ = internal::make_arg<Context>(
arg_ = detail::make_arg<Context>(
static_cast<typename make_unsigned_or_bool<U>::type>(value));
}
}
@ -133,7 +133,7 @@ template <typename Context> class char_converter {
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
void operator()(T value) {
arg_ = internal::make_arg<Context>(
arg_ = detail::make_arg<Context>(
static_cast<typename Context::char_type>(value));
}
@ -141,6 +141,13 @@ template <typename Context> class char_converter {
void operator()(T) {} // No conversion needed for non-integral types.
};
// An argument visitor that return a pointer to a C string if argument is a
// string or null otherwise.
template <typename Char> struct get_cstring {
template <typename T> const Char* operator()(T) { return nullptr; }
const Char* operator()(const Char* s) { return s; }
};
// Checks if an argument is a valid printf width specifier and sets
// left alignment if it is negative.
template <typename Char> class printf_width_handler {
@ -155,7 +162,7 @@ template <typename Char> class printf_width_handler {
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
unsigned operator()(T value) {
auto width = static_cast<uint32_or_64_or_128_t<T>>(value);
if (internal::is_negative(value)) {
if (detail::is_negative(value)) {
specs_.align = align::left;
width = 0 - width;
}
@ -172,23 +179,25 @@ template <typename Char> class printf_width_handler {
};
template <typename Char, typename Context>
void printf(buffer<Char>& buf, basic_string_view<Char> format,
basic_format_args<Context> args) {
void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
basic_format_args<Context> args) {
Context(std::back_inserter(buf), format, args).format();
}
} // namespace detail
template <typename OutputIt, typename Char, typename Context>
internal::truncating_iterator<OutputIt> printf(
internal::truncating_iterator<OutputIt> it, basic_string_view<Char> format,
basic_format_args<Context> args) {
return Context(it, format, args).format();
// For printing into memory_buffer.
template <typename Char, typename Context>
FMT_DEPRECATED void printf(detail::buffer<Char>& buf,
basic_string_view<Char> format,
basic_format_args<Context> args) {
return detail::vprintf(buf, format, args);
}
} // namespace internal
using internal::printf; // For printing into memory_buffer.
template <typename Range> class printf_arg_formatter;
using detail::vprintf;
template <typename Char>
class basic_printf_parse_context : public basic_format_parse_context<Char> {
using basic_format_parse_context<Char>::basic_format_parse_context;
};
template <typename OutputIt, typename Char> class basic_printf_context;
/**
@ -196,15 +205,15 @@ template <typename OutputIt, typename Char> class basic_printf_context;
The ``printf`` argument formatter.
\endrst
*/
template <typename Range>
class printf_arg_formatter : public internal::arg_formatter_base<Range> {
template <typename OutputIt, typename Char>
class printf_arg_formatter : public detail::arg_formatter_base<OutputIt, Char> {
public:
using iterator = typename Range::iterator;
using iterator = OutputIt;
private:
using char_type = typename Range::value_type;
using base = internal::arg_formatter_base<Range>;
using context_type = basic_printf_context<iterator, char_type>;
using char_type = Char;
using base = detail::arg_formatter_base<OutputIt, Char>;
using context_type = basic_printf_context<OutputIt, Char>;
context_type& context_;
@ -229,9 +238,9 @@ class printf_arg_formatter : public internal::arg_formatter_base<Range> {
\endrst
*/
printf_arg_formatter(iterator iter, format_specs& specs, context_type& ctx)
: base(Range(iter), &specs, internal::locale_ref()), context_(ctx) {}
: base(iter, &specs, detail::locale_ref()), context_(ctx) {}
template <typename T, FMT_ENABLE_IF(fmt::internal::is_integral<T>::value)>
template <typename T, FMT_ENABLE_IF(fmt::detail::is_integral<T>::value)>
iterator operator()(T value) {
// MSVC2013 fails to compile separate overloads for bool and char_type so
// use std::is_same instead.
@ -246,7 +255,11 @@ class printf_arg_formatter : public internal::arg_formatter_base<Range> {
return (*this)(static_cast<int>(value));
fmt_specs.sign = sign::none;
fmt_specs.alt = false;
fmt_specs.align = align::right;
fmt_specs.fill[0] = ' '; // Ignore '0' flag for char types.
// align::numeric needs to be overwritten here since the '0' flag is
// ignored for non-numeric types
if (fmt_specs.align == align::none || fmt_specs.align == align::numeric)
fmt_specs.align = align::right;
return base::operator()(value);
} else {
return base::operator()(value);
@ -312,18 +325,21 @@ template <typename T> struct printf_formatter {
template <typename FormatContext>
auto format(const T& value, FormatContext& ctx) -> decltype(ctx.out()) {
internal::format_value(internal::get_container(ctx.out()), value);
detail::format_value(detail::get_container(ctx.out()), value);
return ctx.out();
}
};
/** This template formats data and writes the output to a writer. */
/**
This template formats data and writes the output through an output iterator.
*/
template <typename OutputIt, typename Char> class basic_printf_context {
public:
/** The character type for the output. */
using char_type = Char;
using iterator = OutputIt;
using format_arg = basic_format_arg<basic_printf_context>;
using parse_context_type = basic_printf_parse_context<Char>;
template <typename T> using formatter_type = printf_formatter<T>;
private:
@ -331,7 +347,7 @@ template <typename OutputIt, typename Char> class basic_printf_context {
OutputIt out_;
basic_format_args<basic_printf_context> args_;
basic_format_parse_context<Char> parse_ctx_;
parse_context_type parse_ctx_;
static void parse_flags(format_specs& specs, const Char*& it,
const Char* end);
@ -346,9 +362,8 @@ template <typename OutputIt, typename Char> class basic_printf_context {
public:
/**
\rst
Constructs a ``printf_context`` object. References to the arguments and
the writer are stored in the context object so make sure they have
appropriate lifetimes.
Constructs a ``printf_context`` object. References to the arguments are
stored in the context object so make sure they have appropriate lifetimes.
\endrst
*/
basic_printf_context(OutputIt out, basic_string_view<char_type> format_str,
@ -358,18 +373,18 @@ template <typename OutputIt, typename Char> class basic_printf_context {
OutputIt out() { return out_; }
void advance_to(OutputIt it) { out_ = it; }
internal::locale_ref locale() { return {}; }
detail::locale_ref locale() { return {}; }
format_arg arg(int id) const { return args_.get(id); }
basic_format_parse_context<Char>& parse_context() { return parse_ctx_; }
parse_context_type& parse_context() { return parse_ctx_; }
FMT_CONSTEXPR void on_error(const char* message) {
parse_ctx_.on_error(message);
}
/** Formats stored arguments and writes the output to the range. */
template <typename ArgFormatter = printf_arg_formatter<buffer_range<Char>>>
template <typename ArgFormatter = printf_arg_formatter<OutputIt, Char>>
OutputIt format();
};
@ -389,7 +404,9 @@ void basic_printf_context<OutputIt, Char>::parse_flags(format_specs& specs,
specs.fill[0] = '0';
break;
case ' ':
specs.sign = sign::space;
if (specs.sign != sign::plus) {
specs.sign = sign::space;
}
break;
case '#':
specs.alt = true;
@ -407,7 +424,7 @@ basic_printf_context<OutputIt, Char>::get_arg(int arg_index) {
arg_index = parse_ctx_.next_arg_id();
else
parse_ctx_.check_arg_id(--arg_index);
return internal::get_arg(*this, arg_index);
return detail::get_arg(*this, arg_index);
}
template <typename OutputIt, typename Char>
@ -419,7 +436,7 @@ int basic_printf_context<OutputIt, Char>::parse_header(const Char*& it,
if (c >= '0' && c <= '9') {
// Parse an argument index (if followed by '$') or a width possibly
// preceded with '0' flag(s).
internal::error_handler eh;
detail::error_handler eh;
int value = parse_nonnegative_int(it, end, eh);
if (it != end && *it == '$') { // value is an argument index
++it;
@ -438,12 +455,12 @@ int basic_printf_context<OutputIt, Char>::parse_header(const Char*& it,
// Parse width.
if (it != end) {
if (*it >= '0' && *it <= '9') {
internal::error_handler eh;
detail::error_handler eh;
specs.width = parse_nonnegative_int(it, end, eh);
} else if (*it == '*') {
++it;
specs.width = static_cast<int>(visit_format_arg(
internal::printf_width_handler<char_type>(specs), get_arg()));
detail::printf_width_handler<char_type>(specs), get_arg()));
}
}
return arg_index;
@ -471,38 +488,52 @@ OutputIt basic_printf_context<OutputIt, Char>::format() {
// Parse argument index, flags and width.
int arg_index = parse_header(it, end, specs);
if (arg_index == 0) on_error("argument index out of range");
if (arg_index == 0) on_error("argument not found");
// Parse precision.
if (it != end && *it == '.') {
++it;
c = it != end ? *it : 0;
if ('0' <= c && c <= '9') {
internal::error_handler eh;
detail::error_handler eh;
specs.precision = parse_nonnegative_int(it, end, eh);
} else if (c == '*') {
++it;
specs.precision = static_cast<int>(
visit_format_arg(internal::printf_precision_handler(), get_arg()));
visit_format_arg(detail::printf_precision_handler(), get_arg()));
} else {
specs.precision = 0;
}
}
format_arg arg = get_arg(arg_index);
if (specs.alt && visit_format_arg(internal::is_zero_int(), arg))
// For d, i, o, u, x, and X conversion specifiers, if a precision is
// specified, the '0' flag is ignored
if (specs.precision >= 0 && arg.is_integral())
specs.fill[0] =
' '; // Ignore '0' flag for non-numeric types or if '-' present.
if (specs.precision >= 0 && arg.type() == detail::type::cstring_type) {
auto str = visit_format_arg(detail::get_cstring<Char>(), arg);
auto str_end = str + specs.precision;
auto nul = std::find(str, str_end, Char());
arg = detail::make_arg<basic_printf_context>(basic_string_view<Char>(
str,
detail::to_unsigned(nul != str_end ? nul - str : specs.precision)));
}
if (specs.alt && visit_format_arg(detail::is_zero_int(), arg))
specs.alt = false;
if (specs.fill[0] == '0') {
if (arg.is_arithmetic())
if (arg.is_arithmetic() && specs.align != align::left)
specs.align = align::numeric;
else
specs.fill[0] = ' '; // Ignore '0' flag for non-numeric types.
specs.fill[0] = ' '; // Ignore '0' flag for non-numeric types or if '-'
// flag is also present.
}
// Parse length and convert the argument to the required type.
c = it != end ? *it++ : 0;
char_type t = it != end ? *it : 0;
using internal::convert_arg;
using detail::convert_arg;
switch (c) {
case 'h':
if (t == 'h') {
@ -526,7 +557,7 @@ OutputIt basic_printf_context<OutputIt, Char>::format() {
convert_arg<intmax_t>(arg, t);
break;
case 'z':
convert_arg<std::size_t>(arg, t);
convert_arg<size_t>(arg, t);
break;
case 't':
convert_arg<std::ptrdiff_t>(arg, t);
@ -551,7 +582,7 @@ OutputIt basic_printf_context<OutputIt, Char>::format() {
specs.type = 'd';
break;
case 'c':
visit_format_arg(internal::char_converter<basic_printf_context>(arg),
visit_format_arg(detail::char_converter<basic_printf_context>(arg),
arg);
break;
}
@ -560,15 +591,14 @@ OutputIt basic_printf_context<OutputIt, Char>::format() {
start = it;
// Format argument.
visit_format_arg(ArgFormatter(out, specs, *this), arg);
out = visit_format_arg(ArgFormatter(out, specs, *this), arg);
}
return std::copy(start, it, out);
}
template <typename Char>
using basic_printf_context_t =
basic_printf_context<std::back_insert_iterator<internal::buffer<Char>>,
Char>;
basic_printf_context<std::back_insert_iterator<detail::buffer<Char>>, Char>;
using printf_context = basic_printf_context_t<char>;
using wprintf_context = basic_printf_context_t<wchar_t>;
@ -605,7 +635,7 @@ inline std::basic_string<Char> vsprintf(
const S& format,
basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
printf(buffer, to_string_view(format), args);
vprintf(buffer, to_string_view(format), args);
return to_string(buffer);
}
@ -619,7 +649,7 @@ inline std::basic_string<Char> vsprintf(
\endrst
*/
template <typename S, typename... Args,
typename Char = enable_if_t<internal::is_string<S>::value, char_t<S>>>
typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
inline std::basic_string<Char> sprintf(const S& format, const Args&... args) {
using context = basic_printf_context_t<Char>;
return vsprintf(to_string_view(format), make_format_args<context>(args...));
@ -630,8 +660,8 @@ inline int vfprintf(
std::FILE* f, const S& format,
basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
printf(buffer, to_string_view(format), args);
std::size_t size = buffer.size();
vprintf(buffer, to_string_view(format), args);
size_t size = buffer.size();
return std::fwrite(buffer.data(), sizeof(Char), size, f) < size
? -1
: static_cast<int>(size);
@ -647,7 +677,7 @@ inline int vfprintf(
\endrst
*/
template <typename S, typename... Args,
typename Char = enable_if_t<internal::is_string<S>::value, char_t<S>>>
typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
inline int fprintf(std::FILE* f, const S& format, const Args&... args) {
using context = basic_printf_context_t<Char>;
return vfprintf(f, to_string_view(format),
@ -671,7 +701,7 @@ inline int vprintf(
\endrst
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(internal::is_string<S>::value)>
FMT_ENABLE_IF(detail::is_string<S>::value)>
inline int printf(const S& format_str, const Args&... args) {
using context = basic_printf_context_t<char_t<S>>;
return vprintf(to_string_view(format_str),
@ -683,8 +713,8 @@ inline int vfprintf(
std::basic_ostream<Char>& os, const S& format,
basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
printf(buffer, to_string_view(format), args);
internal::write(os, buffer);
vprintf(buffer, to_string_view(format), args);
detail::write_buffer(os, buffer);
return static_cast<int>(buffer.size());
}
@ -693,7 +723,7 @@ template <typename ArgFormatter, typename Char,
typename Context =
basic_printf_context<typename ArgFormatter::iterator, Char>>
typename ArgFormatter::iterator vprintf(
internal::buffer<Char>& out, basic_string_view<Char> format_str,
detail::buffer<Char>& out, basic_string_view<Char> format_str,
basic_format_args<type_identity_t<Context>> args) {
typename ArgFormatter::iterator iter(out);
Context(iter, format_str, args).template format<ArgFormatter>();

View file

@ -33,7 +33,7 @@ template <typename Char> struct formatting_base {
template <typename Char, typename Enable = void>
struct formatting_range : formatting_base<Char> {
static FMT_CONSTEXPR_DECL const std::size_t range_length_limit =
static FMT_CONSTEXPR_DECL const size_t range_length_limit =
FMT_RANGE_OUTPUT_LENGTH_LIMIT; // output only up to N items from the
// range.
Char prefix;
@ -54,7 +54,7 @@ struct formatting_tuple : formatting_base<Char> {
static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false;
};
namespace internal {
namespace detail {
template <typename RangeT, typename OutputIterator>
OutputIterator copy(const RangeT& range, OutputIterator out) {
@ -118,26 +118,24 @@ template <typename T> class is_tuple_like_ {
#if defined(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900
template <typename T, T... N>
using integer_sequence = std::integer_sequence<T, N...>;
template <std::size_t... N> using index_sequence = std::index_sequence<N...>;
template <std::size_t N>
using make_index_sequence = std::make_index_sequence<N>;
template <size_t... N> using index_sequence = std::index_sequence<N...>;
template <size_t N> using make_index_sequence = std::make_index_sequence<N>;
#else
template <typename T, T... N> struct integer_sequence {
using value_type = T;
static FMT_CONSTEXPR std::size_t size() { return sizeof...(N); }
static FMT_CONSTEXPR size_t size() { return sizeof...(N); }
};
template <std::size_t... N>
using index_sequence = integer_sequence<std::size_t, N...>;
template <size_t... N> using index_sequence = integer_sequence<size_t, N...>;
template <typename T, std::size_t N, T... Ns>
template <typename T, size_t N, T... Ns>
struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...> {};
template <typename T, T... Ns>
struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...> {};
template <std::size_t N>
using make_index_sequence = make_integer_sequence<std::size_t, N>;
template <size_t N>
using make_index_sequence = make_integer_sequence<size_t, N>;
#endif
template <class Tuple, class F, size_t... Is>
@ -185,11 +183,11 @@ FMT_CONSTEXPR const wchar_t* format_str_quoted(bool add_space, const wchar_t) {
return add_space ? L" '{}'" : L"'{}'";
}
} // namespace internal
} // namespace detail
template <typename T> struct is_tuple_like {
static FMT_CONSTEXPR_DECL const bool value =
internal::is_tuple_like_<T>::value && !internal::is_range_<T>::value;
detail::is_tuple_like_<T>::value && !detail::is_range_<T>::value;
};
template <typename TupleT, typename Char>
@ -202,17 +200,17 @@ struct formatter<TupleT, Char, enable_if_t<fmt::is_tuple_like<TupleT>::value>> {
if (formatting.add_prepostfix_space) {
*out++ = ' ';
}
out = internal::copy(formatting.delimiter, out);
out = detail::copy(formatting.delimiter, out);
}
out = format_to(out,
internal::format_str_quoted(
detail::format_str_quoted(
(formatting.add_delimiter_spaces && i > 0), v),
v);
++i;
}
formatting_tuple<Char>& formatting;
std::size_t& i;
size_t& i;
typename std::add_lvalue_reference<decltype(
std::declval<FormatContext>().out())>::type out;
};
@ -228,14 +226,14 @@ struct formatter<TupleT, Char, enable_if_t<fmt::is_tuple_like<TupleT>::value>> {
template <typename FormatContext = format_context>
auto format(const TupleT& values, FormatContext& ctx) -> decltype(ctx.out()) {
auto out = ctx.out();
std::size_t i = 0;
internal::copy(formatting.prefix, out);
size_t i = 0;
detail::copy(formatting.prefix, out);
internal::for_each(values, format_each<FormatContext>{formatting, i, out});
detail::for_each(values, format_each<FormatContext>{formatting, i, out});
if (formatting.add_prepostfix_space) {
*out++ = ' ';
}
internal::copy(formatting.postfix, out);
detail::copy(formatting.postfix, out);
return ctx.out();
}
@ -243,10 +241,9 @@ struct formatter<TupleT, Char, enable_if_t<fmt::is_tuple_like<TupleT>::value>> {
template <typename T, typename Char> struct is_range {
static FMT_CONSTEXPR_DECL const bool value =
internal::is_range_<T>::value &&
!internal::is_like_std_string<T>::value &&
detail::is_range_<T>::value && !detail::is_like_std_string<T>::value &&
!std::is_convertible<T, std::basic_string<Char>>::value &&
!std::is_constructible<internal::std_string_view<Char>, T>::value;
!std::is_constructible<detail::std_string_view<Char>, T>::value;
};
template <typename RangeT, typename Char>
@ -262,15 +259,17 @@ struct formatter<RangeT, Char,
template <typename FormatContext>
typename FormatContext::iterator format(const RangeT& values,
FormatContext& ctx) {
auto out = internal::copy(formatting.prefix, ctx.out());
std::size_t i = 0;
for (auto it = values.begin(), end = values.end(); it != end; ++it) {
auto out = detail::copy(formatting.prefix, ctx.out());
size_t i = 0;
auto it = values.begin();
auto end = values.end();
for (; it != end; ++it) {
if (i > 0) {
if (formatting.add_prepostfix_space) *out++ = ' ';
out = internal::copy(formatting.delimiter, out);
out = detail::copy(formatting.delimiter, out);
}
out = format_to(out,
internal::format_str_quoted(
detail::format_str_quoted(
(formatting.add_delimiter_spaces && i > 0), *it),
*it);
if (++i > formatting.range_length_limit) {
@ -279,11 +278,11 @@ struct formatter<RangeT, Char,
}
}
if (formatting.add_prepostfix_space) *out++ = ' ';
return internal::copy(formatting.postfix, out);
return detail::copy(formatting.postfix, out);
}
};
template <typename Char, typename... T> struct tuple_arg_join : internal::view {
template <typename Char, typename... T> struct tuple_arg_join : detail::view {
const std::tuple<T...>& tuple;
basic_string_view<Char> sep;
@ -301,14 +300,14 @@ struct formatter<tuple_arg_join<Char, T...>, Char> {
template <typename FormatContext>
typename FormatContext::iterator format(
const tuple_arg_join<Char, T...>& value, FormatContext& ctx) {
return format(value, ctx, internal::make_index_sequence<sizeof...(T)>{});
return format(value, ctx, detail::make_index_sequence<sizeof...(T)>{});
}
private:
template <typename FormatContext, size_t... N>
typename FormatContext::iterator format(
const tuple_arg_join<Char, T...>& value, FormatContext& ctx,
internal::index_sequence<N...>) {
detail::index_sequence<N...>) {
return format_args(value, ctx, std::get<N>(value.tuple)...);
}
@ -371,14 +370,14 @@ FMT_CONSTEXPR tuple_arg_join<wchar_t, T...> join(const std::tuple<T...>& tuple,
\endrst
*/
template <typename T>
arg_join<internal::iterator_t<const std::initializer_list<T>>, char> join(
std::initializer_list<T> list, string_view sep) {
arg_join<const T*, const T*, char> join(std::initializer_list<T> list,
string_view sep) {
return join(std::begin(list), std::end(list), sep);
}
template <typename T>
arg_join<internal::iterator_t<const std::initializer_list<T>>, wchar_t> join(
std::initializer_list<T> list, wstring_view sep) {
arg_join<const T*, const T*, wchar_t> join(std::initializer_list<T> list,
wstring_view sep) {
return join(std::begin(list), std::end(list), sep);
}

View file

@ -8,12 +8,12 @@
#include "fmt/format-inl.h"
FMT_BEGIN_NAMESPACE
namespace internal {
namespace detail {
template <typename T>
int format_float(char* buf, std::size_t size, const char* format, int precision,
T value) {
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
#ifdef FMT_FUZZ
if (precision > 100000)
throw std::runtime_error(
"fuzz mode - avoid large allocation inside snprintf");
@ -23,154 +23,47 @@ int format_float(char* buf, std::size_t size, const char* format, int precision,
return precision < 0 ? snprintf_ptr(buf, size, format, value)
: snprintf_ptr(buf, size, format, precision, value);
}
struct sprintf_specs {
int precision;
char type;
bool alt : 1;
} // namespace detail
template <typename Char>
constexpr sprintf_specs(basic_format_specs<Char> specs)
: precision(specs.precision), type(specs.type), alt(specs.alt) {}
constexpr bool has_precision() const { return precision >= 0; }
};
// This is deprecated and is kept only to preserve ABI compatibility.
template <typename Double>
char* sprintf_format(Double value, internal::buffer<char>& buf,
sprintf_specs specs) {
// Buffer capacity must be non-zero, otherwise MSVC's vsnprintf_s will fail.
FMT_ASSERT(buf.capacity() != 0, "empty buffer");
// Build format string.
enum { max_format_size = 10 }; // longest format: %#-*.*Lg
char format[max_format_size];
char* format_ptr = format;
*format_ptr++ = '%';
if (specs.alt || !specs.type) *format_ptr++ = '#';
if (specs.precision >= 0) {
*format_ptr++ = '.';
*format_ptr++ = '*';
}
if (std::is_same<Double, long double>::value) *format_ptr++ = 'L';
char type = specs.type;
if (type == '%')
type = 'f';
else if (type == 0 || type == 'n')
type = 'g';
#if FMT_MSC_VER
if (type == 'F') {
// MSVC's printf doesn't support 'F'.
type = 'f';
}
#endif
*format_ptr++ = type;
*format_ptr = '\0';
// Format using snprintf.
char* start = nullptr;
char* decimal_point_pos = nullptr;
for (;;) {
std::size_t buffer_size = buf.capacity();
start = &buf[0];
int result =
format_float(start, buffer_size, format, specs.precision, value);
if (result >= 0) {
unsigned n = internal::to_unsigned(result);
if (n < buf.capacity()) {
// Find the decimal point.
auto p = buf.data(), end = p + n;
if (*p == '+' || *p == '-') ++p;
if (specs.type != 'a' && specs.type != 'A') {
while (p < end && *p >= '0' && *p <= '9') ++p;
if (p < end && *p != 'e' && *p != 'E') {
decimal_point_pos = p;
if (!specs.type) {
// Keep only one trailing zero after the decimal point.
++p;
if (*p == '0') ++p;
while (p != end && *p >= '1' && *p <= '9') ++p;
char* where = p;
while (p != end && *p == '0') ++p;
if (p == end || *p < '0' || *p > '9') {
if (p != end) std::memmove(where, p, to_unsigned(end - p));
n -= static_cast<unsigned>(p - where);
}
}
}
}
buf.resize(n);
break; // The buffer is large enough - continue with formatting.
}
buf.reserve(n + 1);
} else {
// If result is negative we ask to increase the capacity by at least 1,
// but as std::vector, the buffer grows exponentially.
buf.reserve(buf.capacity() + 1);
}
}
return decimal_point_pos;
}
} // namespace internal
template FMT_API char* internal::sprintf_format(double, internal::buffer<char>&,
sprintf_specs);
template FMT_API char* internal::sprintf_format(long double,
internal::buffer<char>&,
sprintf_specs);
template struct FMT_INSTANTIATION_DEF_API internal::basic_data<void>;
template struct FMT_INSTANTIATION_DEF_API detail::basic_data<void>;
// Workaround a bug in MSVC2013 that prevents instantiation of format_float.
int (*instantiate_format_float)(double, int, internal::float_specs,
internal::buffer<char>&) =
internal::format_float;
int (*instantiate_format_float)(double, int, detail::float_specs,
detail::buffer<char>&) = detail::format_float;
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
template FMT_API internal::locale_ref::locale_ref(const std::locale& loc);
template FMT_API std::locale internal::locale_ref::get<std::locale>() const;
template FMT_API detail::locale_ref::locale_ref(const std::locale& loc);
template FMT_API std::locale detail::locale_ref::get<std::locale>() const;
#endif
// Explicit instantiations for char.
template FMT_API std::string internal::grouping_impl<char>(locale_ref);
template FMT_API char internal::thousands_sep_impl(locale_ref);
template FMT_API char internal::decimal_point_impl(locale_ref);
template FMT_API std::string detail::grouping_impl<char>(locale_ref);
template FMT_API char detail::thousands_sep_impl(locale_ref);
template FMT_API char detail::decimal_point_impl(locale_ref);
template FMT_API void internal::buffer<char>::append(const char*, const char*);
template FMT_API void detail::buffer<char>::append(const char*, const char*);
template FMT_API void internal::arg_map<format_context>::init(
const basic_format_args<format_context>& args);
template FMT_API FMT_BUFFER_CONTEXT(char)::iterator detail::vformat_to(
detail::buffer<char>&, string_view,
basic_format_args<FMT_BUFFER_CONTEXT(char)>);
template FMT_API std::string internal::vformat<char>(
string_view, basic_format_args<format_context>);
template FMT_API format_context::iterator internal::vformat_to(
internal::buffer<char>&, string_view, basic_format_args<format_context>);
template FMT_API int internal::snprintf_float(double, int,
internal::float_specs,
internal::buffer<char>&);
template FMT_API int internal::snprintf_float(long double, int,
internal::float_specs,
internal::buffer<char>&);
template FMT_API int internal::format_float(double, int, internal::float_specs,
internal::buffer<char>&);
template FMT_API int internal::format_float(long double, int,
internal::float_specs,
internal::buffer<char>&);
template FMT_API int detail::snprintf_float(double, int, detail::float_specs,
detail::buffer<char>&);
template FMT_API int detail::snprintf_float(long double, int,
detail::float_specs,
detail::buffer<char>&);
template FMT_API int detail::format_float(double, int, detail::float_specs,
detail::buffer<char>&);
template FMT_API int detail::format_float(long double, int, detail::float_specs,
detail::buffer<char>&);
// Explicit instantiations for wchar_t.
template FMT_API std::string internal::grouping_impl<wchar_t>(locale_ref);
template FMT_API wchar_t internal::thousands_sep_impl(locale_ref);
template FMT_API wchar_t internal::decimal_point_impl(locale_ref);
template FMT_API std::string detail::grouping_impl<wchar_t>(locale_ref);
template FMT_API wchar_t detail::thousands_sep_impl(locale_ref);
template FMT_API wchar_t detail::decimal_point_impl(locale_ref);
template FMT_API void internal::buffer<wchar_t>::append(const wchar_t*,
const wchar_t*);
template FMT_API std::wstring internal::vformat<wchar_t>(
wstring_view, basic_format_args<wformat_context>);
template FMT_API void detail::buffer<wchar_t>::append(const wchar_t*,
const wchar_t*);
FMT_END_NAMESPACE

View file

@ -73,14 +73,14 @@ inline std::size_t convert_rwcount(std::size_t count) { return count; }
FMT_BEGIN_NAMESPACE
#ifdef _WIN32
internal::utf16_to_utf8::utf16_to_utf8(wstring_view s) {
detail::utf16_to_utf8::utf16_to_utf8(wstring_view s) {
if (int error_code = convert(s)) {
FMT_THROW(windows_error(error_code,
"cannot convert string from UTF-16 to UTF-8"));
}
}
int internal::utf16_to_utf8::convert(wstring_view s) {
int detail::utf16_to_utf8::convert(wstring_view s) {
if (s.size() > INT_MAX) return ERROR_INVALID_PARAMETER;
int s_size = static_cast<int>(s.size());
if (s_size == 0) {
@ -105,13 +105,13 @@ void windows_error::init(int err_code, string_view format_str,
format_args args) {
error_code_ = err_code;
memory_buffer buffer;
internal::format_windows_error(buffer, err_code, vformat(format_str, args));
detail::format_windows_error(buffer, err_code, vformat(format_str, args));
std::runtime_error& base = *this;
base = std::runtime_error(to_string(buffer));
}
void internal::format_windows_error(internal::buffer<char>& out, int error_code,
string_view message) FMT_NOEXCEPT {
void detail::format_windows_error(detail::buffer<char>& out, int error_code,
string_view message) FMT_NOEXCEPT {
FMT_TRY {
wmemory_buffer buf;
buf.resize(inline_buffer_size);
@ -124,10 +124,7 @@ void internal::format_windows_error(internal::buffer<char>& out, int error_code,
if (result != 0) {
utf16_to_utf8 utf8_message;
if (utf8_message.convert(system_message) == ERROR_SUCCESS) {
internal::writer w(out);
w.write(message);
w.write(": ");
w.write(utf8_message);
format_to(std::back_inserter(out), "{}: {}", message, utf8_message);
return;
}
break;
@ -143,7 +140,7 @@ void internal::format_windows_error(internal::buffer<char>& out, int error_code,
void report_windows_error(int error_code,
fmt::string_view message) FMT_NOEXCEPT {
report_error(internal::format_windows_error, error_code, message);
report_error(detail::format_windows_error, error_code, message);
}
#endif // _WIN32
@ -234,14 +231,14 @@ std::size_t file::read(void* buffer, std::size_t count) {
RWResult result = 0;
FMT_RETRY(result, FMT_POSIX_CALL(read(fd_, buffer, convert_rwcount(count))));
if (result < 0) FMT_THROW(system_error(errno, "cannot read from file"));
return internal::to_unsigned(result);
return detail::to_unsigned(result);
}
std::size_t file::write(const void* buffer, std::size_t count) {
RWResult result = 0;
FMT_RETRY(result, FMT_POSIX_CALL(write(fd_, buffer, convert_rwcount(count))));
if (result < 0) FMT_THROW(system_error(errno, "cannot write to file"));
return internal::to_unsigned(result);
return detail::to_unsigned(result);
}
file file::dup(int fd) {
@ -292,7 +289,11 @@ void file::pipe(file& read_end, file& write_end) {
buffered_file file::fdopen(const char* mode) {
// Don't retry as fdopen doesn't return EINTR.
#if defined(__MINGW32__) && defined(_POSIX_)
FILE* f = ::fdopen(fd_, mode);
#else
FILE* f = FMT_POSIX_CALL(fdopen(fd_, mode));
#endif
if (!f)
FMT_THROW(
system_error(errno, "cannot associate stream with file descriptor"));

View file

@ -4,6 +4,7 @@
# A vagrant config for testing against gcc-4.8.
Vagrant.configure("2") do |config|
config.vm.box = "ubuntu/xenial64"
config.disksize.size = '15GB'
config.vm.provider "virtualbox" do |vb|
vb.memory = "4096"

View file

@ -0,0 +1,26 @@
# This module provides function for joining paths
# known from from most languages
#
# Original license:
# SPDX-License-Identifier: (MIT OR CC0-1.0)
# Explicit permission given to distribute this module under
# the terms of the project as described in /LICENSE.rst.
# Copyright 2020 Jan Tojnar
# https://github.com/jtojnar/cmake-snips
#
# Modelled after Pythons os.path.join
# https://docs.python.org/3.7/library/os.path.html#os.path.join
# Windows not supported
function(join_paths joined_path first_path_segment)
set(temp_path "${first_path_segment}")
foreach(current_segment IN LISTS ARGN)
if(NOT ("${current_segment}" STREQUAL ""))
if(IS_ABSOLUTE "${current_segment}")
set(temp_path "${current_segment}")
else()
set(temp_path "${temp_path}/${current_segment}")
endif()
endif()
endforeach()
set(${joined_path} "${temp_path}" PARENT_SCOPE)
endfunction()

View file

@ -1,7 +1,7 @@
prefix=@CMAKE_INSTALL_PREFIX@
exec_prefix=@CMAKE_INSTALL_PREFIX@
libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
libdir=@libdir_for_pc_file@
includedir=@includedir_for_pc_file@
Name: fmt
Description: A modern formatting library

View file

@ -144,9 +144,33 @@ def update_site(env):
b.data = re.sub(pattern, r'doxygenfunction:: \1(int)', b.data)
b.data = b.data.replace('std::FILE*', 'std::FILE *')
b.data = b.data.replace('unsigned int', 'unsigned')
b.data = b.data.replace('operator""_', 'operator"" _')
b.data = b.data.replace(', size_t', ', std::size_t')
#b.data = b.data.replace('operator""_', 'operator"" _')
b.data = b.data.replace(
'format_to_n(OutputIt, size_t, string_view, Args&&',
'format_to_n(OutputIt, size_t, const S&, const Args&')
b.data = b.data.replace(
'format_to_n(OutputIt, std::size_t, string_view, Args&&',
'format_to_n(OutputIt, std::size_t, const S&, const Args&')
if version == ('3.0.2'):
b.data = b.data.replace(
'fprintf(std::ostream&', 'fprintf(std::ostream &')
if version == ('5.3.0'):
b.data = b.data.replace(
'format_to(OutputIt, const S&, const Args&...)',
'format_to(OutputIt, const S &, const Args &...)')
if version.startswith('5.') or version.startswith('6.'):
b.data = b.data.replace(', size_t', ', std::size_t')
if version.startswith('7.'):
b.data = b.data.replace(', std::size_t', ', size_t')
b.data = b.data.replace('join(It, It', 'join(It, Sentinel')
b.data = b.data.replace('aa long', 'a long')
b.data = b.data.replace('serveral', 'several')
if version.startswith('6.2.'):
b.data = b.data.replace(
'vformat(const S&, basic_format_args<' +
'buffer_context<Char>>)',
'vformat(const S&, basic_format_args<' +
'buffer_context<type_identity_t<Char>>>)')
# Fix a broken link in index.rst.
index = os.path.join(target_doc_dir, 'index.rst')
with rewrite(index) as b:

View file

@ -10,10 +10,11 @@
#endif
#include "fmt/chrono.h"
#include "gtest-extra.h"
#include <iomanip>
#include "gtest-extra.h"
std::tm make_tm() {
auto time = std::tm();
time.tm_mday = 1;

View file

@ -6,6 +6,7 @@
// For the license information refer to format.h.
#include "fmt/color.h"
#include "gtest-extra.h"
TEST(ColorsTest, ColorsPrint) {

View file

@ -6,6 +6,7 @@
// For the license information refer to format.h.
#include <stdint.h>
#include <cctype>
#include <cfloat>
#include <climits>
@ -39,8 +40,8 @@ using testing::StrictMock;
#if FMT_USE_CONSTEXPR
template <unsigned EXPECTED_PARTS_COUNT, typename Format>
void check_prepared_parts_type(Format format) {
typedef fmt::internal::compiled_format_base<decltype(format)> provider;
typedef fmt::internal::format_part<char>
typedef fmt::detail::compiled_format_base<decltype(format)> provider;
typedef fmt::detail::format_part<char>
expected_parts_type[EXPECTED_PARTS_COUNT];
static_assert(std::is_same<typename provider::parts_container,
expected_parts_type>::value,
@ -66,46 +67,37 @@ TEST(CompileTest, CompileTimePreparedPartsTypeProvider) {
#endif
TEST(CompileTest, PassStringLiteralFormat) {
const auto prepared = fmt::compile<int>("test {}");
const auto prepared = fmt::detail::compile<int>("test {}");
EXPECT_EQ("test 42", fmt::format(prepared, 42));
const auto wprepared = fmt::compile<int>(L"test {}");
const auto wprepared = fmt::detail::compile<int>(L"test {}");
EXPECT_EQ(L"test 42", fmt::format(wprepared, 42));
}
#if FMT_USE_CONSTEXPR
TEST(CompileTest, PassCompileString) {
const auto prepared = fmt::compile<int>(FMT_STRING("test {}"));
EXPECT_EQ("test 42", fmt::format(prepared, 42));
const auto wprepared = fmt::compile<int>(FMT_STRING(L"test {}"));
EXPECT_EQ(L"test 42", fmt::format(wprepared, 42));
}
#endif
TEST(CompileTest, FormatToArrayOfChars) {
char buffer[32] = {0};
const auto prepared = fmt::compile<int>("4{}");
fmt::format_to(fmt::internal::make_checked(buffer, 32), prepared, 2);
const auto prepared = fmt::detail::compile<int>("4{}");
fmt::format_to(fmt::detail::make_checked(buffer, 32), prepared, 2);
EXPECT_EQ(std::string("42"), buffer);
wchar_t wbuffer[32] = {0};
const auto wprepared = fmt::compile<int>(L"4{}");
fmt::format_to(fmt::internal::make_checked(wbuffer, 32), wprepared, 2);
const auto wprepared = fmt::detail::compile<int>(L"4{}");
fmt::format_to(fmt::detail::make_checked(wbuffer, 32), wprepared, 2);
EXPECT_EQ(std::wstring(L"42"), wbuffer);
}
TEST(CompileTest, FormatToIterator) {
std::string s(2, ' ');
const auto prepared = fmt::compile<int>("4{}");
const auto prepared = fmt::detail::compile<int>("4{}");
fmt::format_to(s.begin(), prepared, 2);
EXPECT_EQ("42", s);
std::wstring ws(2, L' ');
const auto wprepared = fmt::compile<int>(L"4{}");
const auto wprepared = fmt::detail::compile<int>(L"4{}");
fmt::format_to(ws.begin(), wprepared, 2);
EXPECT_EQ(L"42", ws);
}
TEST(CompileTest, FormatToN) {
char buf[5];
auto f = fmt::compile<int>("{:10}");
auto f = fmt::detail::compile<int>("{:10}");
auto result = fmt::format_to_n(buf, 5, f, 42);
EXPECT_EQ(result.size, 10);
EXPECT_EQ(result.out, buf + 5);
@ -113,12 +105,12 @@ TEST(CompileTest, FormatToN) {
}
TEST(CompileTest, FormattedSize) {
auto f = fmt::compile<int>("{:10}");
auto f = fmt::detail::compile<int>("{:10}");
EXPECT_EQ(fmt::formatted_size(f, 42), 10);
}
TEST(CompileTest, MultipleTypes) {
auto f = fmt::compile<int, int>("{} {}");
auto f = fmt::detail::compile<int, int>("{} {}");
EXPECT_EQ(fmt::format(f, 42, 42), "42 42");
}
@ -126,18 +118,49 @@ struct formattable {};
FMT_BEGIN_NAMESPACE
template <> struct formatter<formattable> : formatter<const char*> {
auto format(formattable, format_context& ctx) -> decltype(ctx.out()) {
template <typename FormatContext>
auto format(formattable, FormatContext& ctx) -> decltype(ctx.out()) {
return formatter<const char*>::format("foo", ctx);
}
};
FMT_END_NAMESPACE
TEST(CompileTest, FormatUserDefinedType) {
auto f = fmt::compile<formattable>("{}");
auto f = fmt::detail::compile<formattable>("{}");
EXPECT_EQ(fmt::format(f, formattable()), "foo");
}
TEST(CompileTest, EmptyFormatString) {
auto f = fmt::compile<>("");
auto f = fmt::detail::compile<>("");
EXPECT_EQ(fmt::format(f), "");
}
#ifdef __cpp_if_constexpr
TEST(CompileTest, FormatDefault) {
EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42));
EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42u));
EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42ll));
EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42ull));
EXPECT_EQ("true", fmt::format(FMT_COMPILE("{}"), true));
EXPECT_EQ("x", fmt::format(FMT_COMPILE("{}"), 'x'));
EXPECT_EQ("4.2", fmt::format(FMT_COMPILE("{}"), 4.2));
EXPECT_EQ("foo", fmt::format(FMT_COMPILE("{}"), "foo"));
EXPECT_EQ("foo", fmt::format(FMT_COMPILE("{}"), std::string("foo")));
EXPECT_EQ("foo", fmt::format(FMT_COMPILE("{}"), formattable()));
}
TEST(CompileTest, FormatSpecs) {
EXPECT_EQ("42", fmt::format(FMT_COMPILE("{:x}"), 0x42));
}
TEST(CompileTest, FormatTo) {
char buf[8];
auto end = fmt::format_to(buf, FMT_COMPILE("{}"), 42);
*end = '\0';
EXPECT_STREQ("42", buf);
}
TEST(CompileTest, TextAndArg) {
EXPECT_EQ(">>>42<<<", fmt::format(FMT_COMPILE(">>>{}<<<"), 42));
}
#endif

View file

@ -30,8 +30,8 @@
using fmt::basic_format_arg;
using fmt::string_view;
using fmt::internal::buffer;
using fmt::internal::value;
using fmt::detail::buffer;
using fmt::detail::value;
using testing::_;
using testing::StrictMock;
@ -42,7 +42,7 @@ struct test_struct {};
template <typename Context, typename T>
basic_format_arg<Context> make_arg(const T& value) {
return fmt::internal::make_arg<Context>(value);
return fmt::detail::make_arg<Context>(value);
}
} // namespace
@ -83,20 +83,20 @@ TEST(BufferTest, Nonmoveable) {
// A test buffer with a dummy grow method.
template <typename T> struct test_buffer : buffer<T> {
void grow(std::size_t capacity) { this->set(nullptr, capacity); }
void grow(size_t capacity) { this->set(nullptr, capacity); }
};
template <typename T> struct mock_buffer : buffer<T> {
MOCK_METHOD1(do_grow, void(std::size_t capacity));
MOCK_METHOD1(do_grow, void(size_t capacity));
void grow(std::size_t capacity) {
void grow(size_t capacity) {
this->set(this->data(), capacity);
do_grow(capacity);
}
mock_buffer() {}
mock_buffer(T* data) { this->set(data, 0); }
mock_buffer(T* data, std::size_t capacity) { this->set(data, capacity); }
mock_buffer(T* data, size_t capacity) { this->set(data, capacity); }
};
TEST(BufferTest, Ctor) {
@ -115,7 +115,7 @@ TEST(BufferTest, Ctor) {
}
{
int dummy;
std::size_t capacity = std::numeric_limits<std::size_t>::max();
size_t capacity = std::numeric_limits<size_t>::max();
mock_buffer<int> buffer(&dummy, capacity);
EXPECT_EQ(&dummy, &buffer[0]);
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
@ -148,7 +148,7 @@ TEST(BufferTest, Access) {
EXPECT_EQ(11, buffer[0]);
buffer[3] = 42;
EXPECT_EQ(42, *(&buffer[0] + 3));
const fmt::internal::buffer<char>& const_buffer = buffer;
const fmt::detail::buffer<char>& const_buffer = buffer;
EXPECT_EQ(42, const_buffer[3]);
}
@ -210,7 +210,8 @@ TEST(ArgTest, FormatArgs) {
}
struct custom_context {
typedef char char_type;
using char_type = char;
using parse_context_type = fmt::format_parse_context;
template <typename T> struct formatter_type {
template <typename ParseContext>
@ -233,20 +234,20 @@ struct custom_context {
TEST(ArgTest, MakeValueWithCustomContext) {
test_struct t;
fmt::internal::value<custom_context> arg(
fmt::internal::arg_mapper<custom_context>().map(t));
fmt::detail::value<custom_context> arg(
fmt::detail::arg_mapper<custom_context>().map(t));
custom_context ctx = {false, fmt::format_parse_context("")};
arg.custom.format(&t, ctx.parse_context(), ctx);
EXPECT_TRUE(ctx.called);
}
FMT_BEGIN_NAMESPACE
namespace internal {
namespace detail {
template <typename Char>
bool operator==(custom_value<Char> lhs, custom_value<Char> rhs) {
return lhs.value == rhs.value;
}
} // namespace internal
} // namespace detail
FMT_END_NAMESPACE
// Use a unique result type to make sure that there are no undesirable
@ -371,12 +372,12 @@ TEST(ArgTest, PointerArg) {
struct check_custom {
test_result operator()(
fmt::basic_format_arg<fmt::format_context>::handle h) const {
struct test_buffer : fmt::internal::buffer<char> {
struct test_buffer : fmt::detail::buffer<char> {
char data[10];
test_buffer() : fmt::internal::buffer<char>(data, 0, 10) {}
void grow(std::size_t) {}
test_buffer() : fmt::detail::buffer<char>(data, 0, 10) {}
void grow(size_t) {}
} buffer;
fmt::internal::buffer<char>& base = buffer;
fmt::detail::buffer<char>& base = buffer;
fmt::format_parse_context parse_ctx("");
fmt::format_context ctx(std::back_inserter(base), fmt::format_args());
h.format(parse_ctx, ctx);
@ -455,6 +456,25 @@ TEST(FormatDynArgsTest, CustomFormat) {
EXPECT_EQ("cust=0 and cust=1 and cust=3", result);
}
TEST(FormatDynArgsTest, NamedInt) {
fmt::dynamic_format_arg_store<fmt::format_context> store;
store.push_back(fmt::arg("a1", 42));
std::string result = fmt::vformat("{a1}", store);
EXPECT_EQ("42", result);
}
TEST(FormatDynArgsTest, NamedStrings) {
fmt::dynamic_format_arg_store<fmt::format_context> store;
char str[]{"1234567890"};
store.push_back(fmt::arg("a1", str));
store.push_back(fmt::arg("a2", std::cref(str)));
str[0] = 'X';
std::string result = fmt::vformat("{a1} and {a2}", store);
EXPECT_EQ("1234567890 and X234567890", result);
}
TEST(FormatDynArgsTest, NamedArgByRef) {
fmt::dynamic_format_arg_store<fmt::format_context> store;
@ -469,12 +489,53 @@ TEST(FormatDynArgsTest, NamedArgByRef) {
// storages.
int a1_val{42};
auto a1 = fmt::arg("a1_", a1_val);
store.push_back("abc");
store.push_back(1.5f);
store.push_back(std::cref(a1));
std::string result = fmt::vformat("{a1_}", // and {} and {}",
store);
std::string result = fmt::vformat("{a1_} and {} and {} and {}", store);
EXPECT_EQ("42 and abc and 1.5 and 42", result);
}
TEST(FormatDynArgsTest, NamedCustomFormat) {
fmt::dynamic_format_arg_store<fmt::format_context> store;
custom_type c{};
store.push_back(fmt::arg("c1", c));
++c.i;
store.push_back(fmt::arg("c2", c));
++c.i;
store.push_back(fmt::arg("c_ref", std::cref(c)));
++c.i;
std::string result = fmt::vformat("{c1} and {c2} and {c_ref}", store);
EXPECT_EQ("cust=0 and cust=1 and cust=3", result);
}
TEST(FormatDynArgsTest, Clear) {
fmt::dynamic_format_arg_store<fmt::format_context> store;
store.push_back(42);
std::string result = fmt::vformat("{}", store);
EXPECT_EQ("42", result);
store.push_back(43);
result = fmt::vformat("{} and {}", store);
EXPECT_EQ("42 and 43", result);
store.clear();
store.push_back(44);
result = fmt::vformat("{}", store);
EXPECT_EQ("44", result);
}
TEST(FormatDynArgsTest, Reserve) {
fmt::dynamic_format_arg_store<fmt::format_context> store;
store.reserve(2, 1);
store.push_back(1.5f);
store.push_back(fmt::arg("a1", 42));
std::string result = fmt::vformat("{a1} and {}", store);
EXPECT_EQ("42 and 1.5", result);
}
struct copy_throwable {
@ -517,9 +578,9 @@ TEST(StringViewTest, Length) {
// Check string_view's comparison operator.
template <template <typename> class Op> void check_op() {
const char* inputs[] = {"foo", "fop", "fo"};
std::size_t num_inputs = sizeof(inputs) / sizeof(*inputs);
for (std::size_t i = 0; i < num_inputs; ++i) {
for (std::size_t j = 0; j < num_inputs; ++j) {
size_t num_inputs = sizeof(inputs) / sizeof(*inputs);
for (size_t i = 0; i < num_inputs; ++i) {
for (size_t j = 0; j < num_inputs; ++j) {
string_view lhs(inputs[i]), rhs(inputs[j]);
EXPECT_EQ(Op<int>()(lhs.compare(rhs), 0), Op<string_view>()(lhs, rhs));
}
@ -605,7 +666,7 @@ template <typename Char> class my_string {
public:
my_string(const Char* s) : s_(s) {}
const Char* data() const FMT_NOEXCEPT { return s_.data(); }
std::size_t length() const FMT_NOEXCEPT { return s_.size(); }
size_t length() const FMT_NOEXCEPT { return s_.size(); }
operator const Char*() const { return s_.c_str(); }
private:
@ -621,23 +682,6 @@ inline fmt::basic_string_view<Char> to_string_view(const my_string<Char>& s)
struct non_string {};
} // namespace my_ns
namespace FakeQt {
class QString {
public:
QString(const wchar_t* s) : s_(std::make_shared<std::wstring>(s)) {}
const wchar_t* utf16() const FMT_NOEXCEPT { return s_->data(); }
int size() const FMT_NOEXCEPT { return static_cast<int>(s_->size()); }
private:
std::shared_ptr<std::wstring> s_;
};
inline fmt::basic_string_view<wchar_t> to_string_view(const QString& s)
FMT_NOEXCEPT {
return {s.utf16(), static_cast<std::size_t>(s.size())};
}
} // namespace FakeQt
template <typename T> class IsStringTest : public testing::Test {};
typedef ::testing::Types<char, wchar_t, char16_t, char32_t> StringCharTypes;
@ -649,21 +693,19 @@ struct derived_from_string_view : fmt::basic_string_view<Char> {};
} // namespace
TYPED_TEST(IsStringTest, IsString) {
EXPECT_TRUE(fmt::internal::is_string<TypeParam*>::value);
EXPECT_TRUE(fmt::internal::is_string<const TypeParam*>::value);
EXPECT_TRUE(fmt::internal::is_string<TypeParam[2]>::value);
EXPECT_TRUE(fmt::internal::is_string<const TypeParam[2]>::value);
EXPECT_TRUE(fmt::internal::is_string<std::basic_string<TypeParam>>::value);
EXPECT_TRUE(fmt::detail::is_string<TypeParam*>::value);
EXPECT_TRUE(fmt::detail::is_string<const TypeParam*>::value);
EXPECT_TRUE(fmt::detail::is_string<TypeParam[2]>::value);
EXPECT_TRUE(fmt::detail::is_string<const TypeParam[2]>::value);
EXPECT_TRUE(fmt::detail::is_string<std::basic_string<TypeParam>>::value);
EXPECT_TRUE(fmt::detail::is_string<fmt::basic_string_view<TypeParam>>::value);
EXPECT_TRUE(
fmt::internal::is_string<fmt::basic_string_view<TypeParam>>::value);
EXPECT_TRUE(
fmt::internal::is_string<derived_from_string_view<TypeParam>>::value);
using string_view = fmt::internal::std_string_view<TypeParam>;
fmt::detail::is_string<derived_from_string_view<TypeParam>>::value);
using string_view = fmt::detail::std_string_view<TypeParam>;
EXPECT_TRUE(std::is_empty<string_view>::value !=
fmt::internal::is_string<string_view>::value);
EXPECT_TRUE(fmt::internal::is_string<my_ns::my_string<TypeParam>>::value);
EXPECT_FALSE(fmt::internal::is_string<my_ns::non_string>::value);
EXPECT_TRUE(fmt::internal::is_string<FakeQt::QString>::value);
fmt::detail::is_string<string_view>::value);
EXPECT_TRUE(fmt::detail::is_string<my_ns::my_string<TypeParam>>::value);
EXPECT_FALSE(fmt::detail::is_string<my_ns::non_string>::value);
}
TEST(CoreTest, Format) {
@ -686,33 +728,16 @@ TEST(CoreTest, FormatTo) {
TEST(CoreTest, ToStringViewForeignStrings) {
using namespace my_ns;
using namespace FakeQt;
EXPECT_EQ(to_string_view(my_string<char>("42")), "42");
EXPECT_EQ(to_string_view(my_string<wchar_t>(L"42")), L"42");
EXPECT_EQ(to_string_view(QString(L"42")), L"42");
fmt::internal::type type =
fmt::internal::mapped_type_constant<my_string<char>,
fmt::format_context>::value;
EXPECT_EQ(type, fmt::internal::type::string_type);
type = fmt::internal::mapped_type_constant<my_string<wchar_t>,
fmt::wformat_context>::value;
EXPECT_EQ(type, fmt::internal::type::string_type);
type =
fmt::internal::mapped_type_constant<QString, fmt::wformat_context>::value;
EXPECT_EQ(type, fmt::internal::type::string_type);
// Does not compile: only wide format contexts are compatible with QString!
// type = fmt::internal::mapped_type_constant<QString,
// fmt::format_context>::value;
fmt::detail::type type =
fmt::detail::mapped_type_constant<my_string<char>,
fmt::format_context>::value;
EXPECT_EQ(type, fmt::detail::type::string_type);
}
TEST(CoreTest, FormatForeignStrings) {
using namespace my_ns;
using namespace FakeQt;
EXPECT_EQ(fmt::format(my_string<char>("{}"), 42), "42");
EXPECT_EQ(fmt::format(my_string<wchar_t>(L"{}"), 42), L"42");
EXPECT_EQ(fmt::format(QString(L"{}"), 42), L"42");
EXPECT_EQ(fmt::format(QString(L"{}"), my_string<wchar_t>(L"42")), L"42");
EXPECT_EQ(fmt::format(my_string<wchar_t>(L"{}"), QString(L"42")), L"42");
}
struct implicitly_convertible_to_string {
@ -747,15 +772,6 @@ TEST(FormatterTest, FormatExplicitlyConvertibleToStdStringView) {
fmt::format("{}", explicitly_convertible_to_std_string_view()));
}
# endif
struct explicitly_convertible_to_wstring_view {
explicit operator fmt::wstring_view() const { return L"foo"; }
};
TEST(FormatterTest, FormatExplicitlyConvertibleToWStringView) {
EXPECT_EQ(L"foo",
fmt::format(L"{}", explicitly_convertible_to_wstring_view()));
}
#endif
struct disabled_rvalue_conversion {

View file

@ -18,14 +18,14 @@
// A custom argument formatter that doesn't print `-` for floating-point values
// rounded to 0.
class custom_arg_formatter
: public fmt::arg_formatter<fmt::buffer_range<char>> {
: public fmt::detail::arg_formatter<fmt::format_context::iterator, char> {
public:
using range = fmt::buffer_range<char>;
typedef fmt::arg_formatter<range> base;
using base = fmt::detail::arg_formatter<fmt::format_context::iterator, char>;
custom_arg_formatter(fmt::format_context& ctx,
fmt::format_parse_context* parse_ctx,
fmt::format_specs* s = nullptr)
fmt::format_specs* s = nullptr,
const char* = nullptr)
: base(ctx, parse_ctx, s) {}
using base::operator();
@ -39,8 +39,10 @@ class custom_arg_formatter
std::string custom_vformat(fmt::string_view format_str, fmt::format_args args) {
fmt::memory_buffer buffer;
fmt::detail::buffer<char>& base = buffer;
// Pass custom argument formatter as a template arg to vwrite.
fmt::vformat_to<custom_arg_formatter>(buffer, format_str, args);
fmt::vformat_to<custom_arg_formatter>(std::back_inserter(base), format_str,
args);
return std::string(buffer.data(), buffer.size());
}

View file

@ -38,9 +38,9 @@ namespace std {
template<class Out, class charT> class basic_format_context;
using format_context = basic_format_context<
/* unspecified */ std::back_insert_iterator<fmt::internal::buffer<char>>, char>;
/* unspecified */ std::back_insert_iterator<fmt::detail::buffer<char>>, char>;
using wformat_context = basic_format_context<
/* unspecified */ std::back_insert_iterator<fmt::internal::buffer<wchar_t>>, wchar_t>;
/* unspecified */ std::back_insert_iterator<fmt::detail::buffer<wchar_t>>, wchar_t>;
template<class T, class charT = char> struct formatter {
formatter() = delete;
@ -219,7 +219,7 @@ namespace std {
// Implementation details:
using format_arg = basic_format_arg<basic_format_context>;
basic_format_context(Out out, basic_format_args<basic_format_context> args, fmt::internal::locale_ref)
basic_format_context(Out out, basic_format_args<basic_format_context> args, fmt::detail::locale_ref)
: args_(args), out_(out) {}
detail::error_handler error_handler() const { return {}; }
basic_format_arg<basic_format_context> arg(fmt::basic_string_view<charT>) const {
@ -488,22 +488,21 @@ template<class... Args>
namespace std {
namespace detail {
template <typename Range>
template <typename OutputIt, typename Char>
class arg_formatter
: public fmt::internal::arg_formatter_base<Range, error_handler> {
: public fmt::detail::arg_formatter_base<OutputIt, Char, error_handler> {
private:
using char_type = typename Range::value_type;
using base = fmt::internal::arg_formatter_base<Range, error_handler>;
using format_context = std::basic_format_context<typename base::iterator, char_type>;
using parse_context = basic_format_parse_context<char_type>;
using char_type = Char;
using base = fmt::detail::arg_formatter_base<OutputIt, Char, error_handler>;
using format_context = std::basic_format_context<OutputIt, Char>;
using parse_context = basic_format_parse_context<Char>;
parse_context* parse_ctx_;
format_context& ctx_;
public:
typedef Range range;
typedef typename base::iterator iterator;
typedef typename base::format_specs format_specs;
using iterator = OutputIt;
using format_specs = typename base::format_specs;
/**
\rst
@ -513,7 +512,7 @@ class arg_formatter
\endrst
*/
arg_formatter(format_context& ctx, parse_context* parse_ctx = nullptr, fmt::format_specs* spec = nullptr)
: base(Range(ctx.out()), spec, {}), parse_ctx_(parse_ctx), ctx_(ctx) {}
: base(ctx.out(), spec, {}), parse_ctx_(parse_ctx), ctx_(ctx) {}
using base::operator();
@ -529,36 +528,36 @@ class arg_formatter
};
template <typename Context>
inline fmt::internal::type get_type(basic_format_arg<Context> arg) {
inline fmt::detail::type get_type(basic_format_arg<Context> arg) {
return visit_format_arg([&] (auto val) {
using char_type = typename Context::char_type;
using T = decltype(val);
if (std::is_same_v<T, monostate>)
return fmt::internal::type::none_type;
return fmt::detail::type::none_type;
if (std::is_same_v<T, bool>)
return fmt::internal::type::bool_type;
return fmt::detail::type::bool_type;
if (std::is_same_v<T, char_type>)
return fmt::internal::type::char_type;
return fmt::detail::type::char_type;
if (std::is_same_v<T, int>)
return fmt::internal::type::int_type;
return fmt::detail::type::int_type;
if (std::is_same_v<T, unsigned int>)
return fmt::internal::type::uint_type;
return fmt::detail::type::uint_type;
if (std::is_same_v<T, long long int>)
return fmt::internal::type::long_long_type;
return fmt::detail::type::long_long_type;
if (std::is_same_v<T, unsigned long long int>)
return fmt::internal::type::ulong_long_type;
return fmt::detail::type::ulong_long_type;
if (std::is_same_v<T, double>)
return fmt::internal::type::double_type;
return fmt::detail::type::double_type;
if (std::is_same_v<T, long double>)
return fmt::internal::type::long_double_type;
return fmt::detail::type::long_double_type;
if (std::is_same_v<T, const char_type*>)
return fmt::internal::type::cstring_type;
return fmt::detail::type::cstring_type;
if (std::is_same_v<T, basic_string_view<char_type>>)
return fmt::internal::type::string_type;
return fmt::detail::type::string_type;
if (std::is_same_v<T, const void*>)
return fmt::internal::type::pointer_type;
return fmt::detail::type::pointer_type;
assert(get_value(arg).index() == 12);
return fmt::internal::type::custom_type;
return fmt::detail::type::custom_type;
}, arg);
}
@ -582,45 +581,42 @@ class custom_formatter {
template <typename ArgFormatter, typename Char, typename Context>
struct format_handler : detail::error_handler {
typedef typename ArgFormatter::range range;
using iterator = typename ArgFormatter::iterator;
format_handler(range r, basic_string_view<Char> str,
format_handler(iterator out, basic_string_view<Char> str,
basic_format_args<Context> format_args,
fmt::internal::locale_ref loc)
: parse_ctx(str), context(r.begin(), format_args, loc) {}
fmt::detail::locale_ref loc)
: parse_ctx(str), context(out, format_args, loc) {}
void on_text(const Char* begin, const Char* end) {
auto size = fmt::internal::to_unsigned(end - begin);
auto size = fmt::detail::to_unsigned(end - begin);
auto out = context.out();
auto&& it = fmt::internal::reserve(out, size);
auto&& it = fmt::detail::reserve(out, size);
it = std::copy_n(begin, size, it);
context.advance_to(out);
}
void on_arg_id() {
arg = context.arg(parse_ctx.next_arg_id());
}
void on_arg_id(unsigned id) {
parse_ctx.check_arg_id(id);
arg = context.arg(id);
}
void on_arg_id(fmt::basic_string_view<Char>) {}
int on_arg_id() { return parse_ctx.next_arg_id(); }
int on_arg_id(unsigned id) { return parse_ctx.check_arg_id(id), id; }
int on_arg_id(fmt::basic_string_view<Char>) { return 0; }
void on_replacement_field(const Char* p) {
parse_ctx.advance_to(parse_ctx.begin() + (p - &*parse_ctx.begin()));
void on_replacement_field(int id, const Char* p) {
auto arg = context.arg(id);
parse_ctx.advance_to(parse_ctx.begin() + (p - &*parse_ctx.begin()));
custom_formatter<Context> f(parse_ctx, context);
if (!visit_format_arg(f, arg))
context.advance_to(visit_format_arg(ArgFormatter(context, &parse_ctx), arg));
}
const Char* on_format_specs(const Char* begin, const Char* end) {
const Char* on_format_specs(int id, const Char* begin, const Char* end) {
auto arg = context.arg(id);
parse_ctx.advance_to(parse_ctx.begin() + (begin - &*parse_ctx.begin()));
custom_formatter<Context> f(parse_ctx, context);
if (visit_format_arg(f, arg)) return &*parse_ctx.begin();
fmt::basic_format_specs<Char> specs;
using fmt::internal::specs_handler;
using fmt::detail::specs_handler;
using parse_context = basic_format_parse_context<Char>;
fmt::internal::specs_checker<specs_handler<parse_context, Context>> handler(
fmt::detail::specs_checker<specs_handler<parse_context, Context>> handler(
specs_handler<parse_context, Context>(specs, parse_ctx, context), get_type(arg));
begin = parse_format_specs(begin, end, handler);
if (begin == end || *begin != '}') on_error("missing '}' in format string");
@ -631,7 +627,6 @@ struct format_handler : detail::error_handler {
basic_format_parse_context<Char> parse_ctx;
Context context;
basic_format_arg<Context> arg;
};
template <typename T, typename Char>
@ -640,46 +635,45 @@ struct formatter {
// terminating '}'.
template <typename ParseContext>
FMT_CONSTEXPR typename ParseContext::iterator parse(ParseContext& ctx) {
namespace internal = fmt::internal;
typedef internal::dynamic_specs_handler<ParseContext> handler_type;
auto type = internal::mapped_type_constant<T, fmt::buffer_context<Char>>::value;
internal::specs_checker<handler_type> handler(handler_type(specs_, ctx),
namespace detail = fmt::detail;
typedef detail::dynamic_specs_handler<ParseContext> handler_type;
auto type = detail::mapped_type_constant<T, fmt::buffer_context<Char>>::value;
detail::specs_checker<handler_type> handler(handler_type(specs_, ctx),
type);
auto it = parse_format_specs(ctx.begin(), ctx.end(), handler);
auto type_spec = specs_.type;
auto eh = ctx.error_handler();
switch (type) {
case internal::type::none_type:
case internal::type::named_arg_type:
case detail::type::none_type:
FMT_ASSERT(false, "invalid argument type");
break;
case internal::type::int_type:
case internal::type::uint_type:
case internal::type::long_long_type:
case internal::type::ulong_long_type:
case internal::type::bool_type:
case detail::type::int_type:
case detail::type::uint_type:
case detail::type::long_long_type:
case detail::type::ulong_long_type:
case detail::type::bool_type:
handle_int_type_spec(type_spec,
internal::int_type_checker<decltype(eh)>(eh));
detail::int_type_checker<decltype(eh)>(eh));
break;
case internal::type::char_type:
case detail::type::char_type:
handle_char_specs(
&specs_, internal::char_specs_checker<decltype(eh)>(type_spec, eh));
&specs_, detail::char_specs_checker<decltype(eh)>(type_spec, eh));
break;
case internal::type::double_type:
case internal::type::long_double_type:
internal::parse_float_type_spec(specs_, eh);
case detail::type::double_type:
case detail::type::long_double_type:
detail::parse_float_type_spec(specs_, eh);
break;
case internal::type::cstring_type:
internal::handle_cstring_type_spec(
type_spec, internal::cstring_type_checker<decltype(eh)>(eh));
case detail::type::cstring_type:
detail::handle_cstring_type_spec(
type_spec, detail::cstring_type_checker<decltype(eh)>(eh));
break;
case internal::type::string_type:
internal::check_string_type_spec(type_spec, eh);
case detail::type::string_type:
detail::check_string_type_spec(type_spec, eh);
break;
case internal::type::pointer_type:
internal::check_pointer_type_spec(type_spec, eh);
case detail::type::pointer_type:
detail::check_pointer_type_spec(type_spec, eh);
break;
case internal::type::custom_type:
case detail::type::custom_type:
// Custom format specifiers should be checked in parse functions of
// formatter specializations.
break;
@ -689,18 +683,18 @@ struct formatter {
template <typename FormatContext>
auto format(const T& val, FormatContext& ctx) -> decltype(ctx.out()) {
fmt::internal::handle_dynamic_spec<fmt::internal::width_checker>(
fmt::detail::handle_dynamic_spec<fmt::detail::width_checker>(
specs_.width, specs_.width_ref, ctx);
fmt::internal::handle_dynamic_spec<fmt::internal::precision_checker>(
fmt::detail::handle_dynamic_spec<fmt::detail::precision_checker>(
specs_.precision, specs_.precision_ref, ctx);
using range_type = fmt::internal::output_range<typename FormatContext::iterator,
typename FormatContext::char_type>;
return visit_format_arg(arg_formatter<range_type>(ctx, nullptr, &specs_),
using af = arg_formatter<typename FormatContext::iterator,
typename FormatContext::char_type>;
return visit_format_arg(af(ctx, nullptr, &specs_),
basic_format_arg<FormatContext>(val));
}
private:
fmt::internal::dynamic_format_specs<Char> specs_;
fmt::detail::dynamic_format_specs<Char> specs_;
};
} // namespace detail
@ -717,11 +711,11 @@ template<class... Args>
string vformat(string_view fmt, format_args args) {
fmt::memory_buffer mbuf;
fmt::internal::buffer<char>& buf = mbuf;
using range = fmt::buffer_range<char>;
detail::format_handler<detail::arg_formatter<range>, char, format_context>
h(range(std::back_inserter(buf)), fmt, args, {});
fmt::internal::parse_format_string<false>(fmt::to_string_view(fmt), h);
fmt::detail::buffer<char>& buf = mbuf;
using af = detail::arg_formatter<fmt::format_context::iterator, char>;
detail::format_handler<af, char, format_context>
h(std::back_inserter(buf), fmt, args, {});
fmt::detail::parse_format_string<false>(fmt::to_string_view(fmt), h);
return to_string(mbuf);
}
@ -741,10 +735,10 @@ template<class Out, class... Args>
template<class Out>
Out vformat_to(Out out, string_view fmt, format_args_t<fmt::type_identity_t<Out>, char> args) {
using range = fmt::internal::output_range<Out, char>;
detail::format_handler<detail::arg_formatter<range>, char, basic_format_context<Out, char>>
h(range(out), fmt, args, {});
fmt::internal::parse_format_string<false>(fmt::to_string_view(fmt), h);
using af = detail::arg_formatter<Out, char>;
detail::format_handler<af, char, basic_format_context<Out, char>>
h(out, fmt, args, {});
fmt::detail::parse_format_string<false>(fmt::to_string_view(fmt), h);
return h.context.out();
}

View file

@ -21,9 +21,9 @@
#undef max
using fmt::internal::bigint;
using fmt::internal::fp;
using fmt::internal::max_value;
using fmt::detail::bigint;
using fmt::detail::fp;
using fmt::detail::max_value;
static_assert(!std::is_copy_constructible<bigint>::value, "");
static_assert(!std::is_copy_assignable<bigint>::value, "");
@ -102,7 +102,7 @@ TEST(BigIntTest, Multiply) {
}
TEST(BigIntTest, Accumulator) {
fmt::internal::accumulator acc;
fmt::detail::accumulator acc;
EXPECT_EQ(acc.lower, 0);
EXPECT_EQ(acc.upper, 0);
acc.upper = 12;
@ -110,7 +110,7 @@ TEST(BigIntTest, Accumulator) {
EXPECT_EQ(static_cast<uint32_t>(acc), 34);
acc += 56;
EXPECT_EQ(acc.lower, 90);
acc += fmt::internal::max_value<uint64_t>();
acc += fmt::detail::max_value<uint64_t>();
EXPECT_EQ(acc.upper, 13);
EXPECT_EQ(acc.lower, 89);
acc >>= 32;
@ -262,7 +262,7 @@ TEST(FPTest, GetCachedPower) {
typedef std::numeric_limits<double> limits;
for (auto exp = limits::min_exponent; exp <= limits::max_exponent; ++exp) {
int dec_exp = 0;
auto fp = fmt::internal::get_cached_power(exp, dec_exp);
auto fp = fmt::detail::get_cached_power(exp, dec_exp);
EXPECT_LE(exp, fp.e);
int dec_exp_step = 8;
EXPECT_LE(fp.e, exp + dec_exp_step * log2(10));
@ -271,8 +271,8 @@ TEST(FPTest, GetCachedPower) {
}
TEST(FPTest, GetRoundDirection) {
using fmt::internal::get_round_direction;
using fmt::internal::round_direction;
using fmt::detail::get_round_direction;
using fmt::detail::round_direction;
EXPECT_EQ(round_direction::down, get_round_direction(100, 50, 0));
EXPECT_EQ(round_direction::up, get_round_direction(100, 51, 0));
EXPECT_EQ(round_direction::down, get_round_direction(100, 40, 10));
@ -295,9 +295,9 @@ TEST(FPTest, GetRoundDirection) {
}
TEST(FPTest, FixedHandler) {
struct handler : fmt::internal::fixed_handler {
struct handler : fmt::detail::fixed_handler {
char buffer[10];
handler(int prec = 0) : fmt::internal::fixed_handler() {
handler(int prec = 0) : fmt::detail::fixed_handler() {
buf = buffer;
precision = prec;
}
@ -306,7 +306,7 @@ TEST(FPTest, FixedHandler) {
handler().on_digit('0', 100, 99, 0, exp, false);
EXPECT_THROW(handler().on_digit('0', 100, 100, 0, exp, false),
assertion_failure);
namespace digits = fmt::internal::digits;
namespace digits = fmt::detail::digits;
EXPECT_EQ(handler(1).on_digit('0', 100, 10, 10, exp, false), digits::done);
// Check that divisor - error doesn't overflow.
EXPECT_EQ(handler(1).on_digit('0', 100, 10, 101, exp, false), digits::error);
@ -318,7 +318,7 @@ TEST(FPTest, FixedHandler) {
TEST(FPTest, GrisuFormatCompilesWithNonIEEEDouble) {
fmt::memory_buffer buf;
format_float(0.42, -1, fmt::internal::float_specs(), buf);
format_float(0.42, -1, fmt::detail::float_specs(), buf);
}
template <typename T> struct value_extractor {
@ -330,11 +330,11 @@ template <typename T> struct value_extractor {
#if FMT_USE_INT128
// Apple Clang does not define typeid for __int128_t and __uint128_t.
FMT_NORETURN T operator()(fmt::internal::int128_t) {
FMT_NORETURN T operator()(fmt::detail::int128_t) {
throw std::runtime_error("invalid type __int128_t");
}
FMT_NORETURN T operator()(fmt::internal::uint128_t) {
FMT_NORETURN T operator()(fmt::detail::uint128_t) {
throw std::runtime_error("invalid type __uint128_t");
}
#endif
@ -342,9 +342,9 @@ template <typename T> struct value_extractor {
TEST(FormatTest, ArgConverter) {
long long value = max_value<long long>();
auto arg = fmt::internal::make_arg<fmt::format_context>(value);
auto arg = fmt::detail::make_arg<fmt::format_context>(value);
fmt::visit_format_arg(
fmt::internal::arg_converter<long long, fmt::format_context>(arg, 'd'),
fmt::detail::arg_converter<long long, fmt::format_context>(arg, 'd'),
arg);
EXPECT_EQ(value, fmt::visit_format_arg(value_extractor<long long>(), arg));
}
@ -360,9 +360,9 @@ TEST(FormatTest, FormatNegativeNaN) {
TEST(FormatTest, StrError) {
char* message = nullptr;
char buffer[BUFFER_SIZE];
EXPECT_ASSERT(fmt::internal::safe_strerror(EDOM, message = nullptr, 0),
EXPECT_ASSERT(fmt::detail::safe_strerror(EDOM, message = nullptr, 0),
"invalid buffer");
EXPECT_ASSERT(fmt::internal::safe_strerror(EDOM, message = buffer, 0),
EXPECT_ASSERT(fmt::detail::safe_strerror(EDOM, message = buffer, 0),
"invalid buffer");
buffer[0] = 'x';
#if defined(_GNU_SOURCE) && !defined(__COVERITY__)
@ -374,18 +374,18 @@ TEST(FormatTest, StrError) {
#endif
int result =
fmt::internal::safe_strerror(error_code, message = buffer, BUFFER_SIZE);
fmt::detail::safe_strerror(error_code, message = buffer, BUFFER_SIZE);
EXPECT_EQ(result, 0);
std::size_t message_size = std::strlen(message);
size_t message_size = std::strlen(message);
EXPECT_GE(BUFFER_SIZE - 1u, message_size);
EXPECT_EQ(get_system_error(error_code), message);
// safe_strerror never uses buffer on MinGW.
#if !defined(__MINGW32__) && !defined(__sun)
result =
fmt::internal::safe_strerror(error_code, message = buffer, message_size);
fmt::detail::safe_strerror(error_code, message = buffer, message_size);
EXPECT_EQ(ERANGE, result);
result = fmt::internal::safe_strerror(error_code, message = buffer, 1);
result = fmt::detail::safe_strerror(error_code, message = buffer, 1);
EXPECT_EQ(buffer, message); // Message should point to buffer.
EXPECT_EQ(ERANGE, result);
EXPECT_STREQ("", message);
@ -397,51 +397,48 @@ TEST(FormatTest, FormatErrorCode) {
{
fmt::memory_buffer buffer;
format_to(buffer, "garbage");
fmt::internal::format_error_code(buffer, 42, "test");
fmt::detail::format_error_code(buffer, 42, "test");
EXPECT_EQ("test: " + msg, to_string(buffer));
}
{
fmt::memory_buffer buffer;
std::string prefix(fmt::inline_buffer_size - msg.size() - sep.size() + 1,
'x');
fmt::internal::format_error_code(buffer, 42, prefix);
fmt::detail::format_error_code(buffer, 42, prefix);
EXPECT_EQ(msg, to_string(buffer));
}
int codes[] = {42, -1};
for (std::size_t i = 0, n = sizeof(codes) / sizeof(*codes); i < n; ++i) {
for (size_t i = 0, n = sizeof(codes) / sizeof(*codes); i < n; ++i) {
// Test maximum buffer size.
msg = fmt::format("error {}", codes[i]);
fmt::memory_buffer buffer;
std::string prefix(fmt::inline_buffer_size - msg.size() - sep.size(), 'x');
fmt::internal::format_error_code(buffer, codes[i], prefix);
fmt::detail::format_error_code(buffer, codes[i], prefix);
EXPECT_EQ(prefix + sep + msg, to_string(buffer));
std::size_t size = fmt::inline_buffer_size;
size_t size = fmt::inline_buffer_size;
EXPECT_EQ(size, buffer.size());
buffer.resize(0);
// Test with a message that doesn't fit into the buffer.
prefix += 'x';
fmt::internal::format_error_code(buffer, codes[i], prefix);
fmt::detail::format_error_code(buffer, codes[i], prefix);
EXPECT_EQ(msg, to_string(buffer));
}
}
TEST(FormatTest, CountCodePoints) {
#ifndef __cpp_char8_t
using fmt::char8_t;
#endif
EXPECT_EQ(
4, fmt::internal::count_code_points(
fmt::basic_string_view<fmt::internal::char8_type>(
reinterpret_cast<const fmt::internal::char8_type*>("ёжик"))));
EXPECT_EQ(4,
fmt::detail::count_code_points(
fmt::basic_string_view<fmt::detail::char8_type>(
reinterpret_cast<const fmt::detail::char8_type*>("ёжик"))));
}
// Tests fmt::internal::count_digits for integer type Int.
// Tests fmt::detail::count_digits for integer type Int.
template <typename Int> void test_count_digits() {
for (Int i = 0; i < 10; ++i) EXPECT_EQ(1u, fmt::internal::count_digits(i));
for (Int i = 0; i < 10; ++i) EXPECT_EQ(1u, fmt::detail::count_digits(i));
for (Int i = 1, n = 1, end = max_value<Int>() / 10; n <= end; ++i) {
n *= 10;
EXPECT_EQ(i, fmt::internal::count_digits(n - 1));
EXPECT_EQ(i + 1, fmt::internal::count_digits(n));
EXPECT_EQ(i, fmt::detail::count_digits(n - 1));
EXPECT_EQ(i + 1, fmt::detail::count_digits(n));
}
}
@ -450,11 +447,10 @@ TEST(UtilTest, CountDigits) {
test_count_digits<uint64_t>();
}
TEST(UtilTest, WriteUIntPtr) {
fmt::memory_buffer buf;
fmt::internal::writer writer(buf);
writer.write_pointer(
fmt::internal::fallback_uintptr(reinterpret_cast<void*>(0xface)),
nullptr);
EXPECT_EQ("0xface", to_string(buf));
TEST(UtilTest, WriteFallbackUIntPtr) {
std::string s;
fmt::detail::write_ptr<char>(
std::back_inserter(s),
fmt::detail::fallback_uintptr(reinterpret_cast<void*>(0xface)), nullptr);
EXPECT_EQ(s, "0xface");
}

View file

@ -35,10 +35,6 @@
#include "util.h"
#undef ERROR
#undef min
#undef max
using std::size_t;
using fmt::basic_memory_buffer;
using fmt::format;
@ -47,8 +43,7 @@ using fmt::memory_buffer;
using fmt::string_view;
using fmt::wmemory_buffer;
using fmt::wstring_view;
using fmt::internal::basic_writer;
using fmt::internal::max_value;
using fmt::detail::max_value;
using testing::Return;
using testing::StrictMock;
@ -102,47 +97,6 @@ void std_format(long double value, std::wstring& result) {
result = buffer;
}
#endif
// Checks if writing value to BasicWriter<Char> produces the same result
// as writing it to std::basic_ostringstream<Char>.
template <typename Char, typename T>
::testing::AssertionResult check_write(const T& value, const char* type) {
fmt::basic_memory_buffer<Char> buffer;
using range = fmt::buffer_range<Char>;
basic_writer<range> writer(buffer);
writer.write(value);
std::basic_string<Char> actual = to_string(buffer);
std::basic_string<Char> expected;
std_format(value, expected);
if (expected == actual) return ::testing::AssertionSuccess();
return ::testing::AssertionFailure()
<< "Value of: (Writer<" << type << ">() << value).str()\n"
<< " Actual: " << actual << "\n"
<< "Expected: " << expected << "\n";
}
struct AnyWriteChecker {
template <typename T>
::testing::AssertionResult operator()(const char*, const T& value) const {
::testing::AssertionResult result = check_write<char>(value, "char");
return result ? check_write<wchar_t>(value, "wchar_t") : result;
}
};
template <typename Char> struct WriteChecker {
template <typename T>
::testing::AssertionResult operator()(const char*, const T& value) const {
return check_write<Char>(value, "char");
}
};
// Checks if writing value to BasicWriter produces the same result
// as writing it to std::ostringstream both for char and wchar_t.
#define CHECK_WRITE(value) EXPECT_PRED_FORMAT1(AnyWriteChecker(), value)
#define CHECK_WRITE_CHAR(value) EXPECT_PRED_FORMAT1(WriteChecker<char>(), value)
#define CHECK_WRITE_WCHAR(value) \
EXPECT_PRED_FORMAT1(WriteChecker<wchar_t>(), value)
} // namespace
struct uint32_pair {
@ -150,10 +104,10 @@ struct uint32_pair {
};
TEST(UtilTest, BitCast) {
auto s = fmt::internal::bit_cast<uint32_pair>(uint64_t{42});
EXPECT_EQ(fmt::internal::bit_cast<uint64_t>(s), 42ull);
s = fmt::internal::bit_cast<uint32_pair>(uint64_t(~0ull));
EXPECT_EQ(fmt::internal::bit_cast<uint64_t>(s), ~0ull);
auto s = fmt::detail::bit_cast<uint32_pair>(uint64_t{42});
EXPECT_EQ(fmt::detail::bit_cast<uint64_t>(s), 42ull);
s = fmt::detail::bit_cast<uint32_pair>(uint64_t(~0ull));
EXPECT_EQ(fmt::detail::bit_cast<uint64_t>(s), ~0ull);
}
TEST(UtilTest, Increment) {
@ -178,18 +132,18 @@ TEST(UtilTest, ParseNonnegativeInt) {
fmt::string_view s = "10000000000";
auto begin = s.begin(), end = s.end();
EXPECT_THROW_MSG(
parse_nonnegative_int(begin, end, fmt::internal::error_handler()),
parse_nonnegative_int(begin, end, fmt::detail::error_handler()),
fmt::format_error, "number is too big");
s = "2147483649";
begin = s.begin();
end = s.end();
EXPECT_THROW_MSG(
parse_nonnegative_int(begin, end, fmt::internal::error_handler()),
parse_nonnegative_int(begin, end, fmt::detail::error_handler()),
fmt::format_error, "number is too big");
}
TEST(IteratorTest, CountingIterator) {
fmt::internal::counting_iterator it;
fmt::detail::counting_iterator it;
auto prev = it++;
EXPECT_EQ(prev.count(), 0);
EXPECT_EQ(it.count(), 1);
@ -197,7 +151,7 @@ TEST(IteratorTest, CountingIterator) {
TEST(IteratorTest, TruncatingIterator) {
char* p = nullptr;
fmt::internal::truncating_iterator<char*> it(p, 3);
fmt::detail::truncating_iterator<char*> it(p, 3);
auto prev = it++;
EXPECT_EQ(prev.base(), p);
EXPECT_EQ(it.base(), p + 1);
@ -206,7 +160,7 @@ TEST(IteratorTest, TruncatingIterator) {
TEST(IteratorTest, TruncatingBackInserter) {
std::string buffer;
auto bi = std::back_inserter(buffer);
fmt::internal::truncating_iterator<decltype(bi)> it(bi, 2);
fmt::detail::truncating_iterator<decltype(bi)> it(bi, 2);
*it++ = '4';
*it++ = '2';
*it++ = '1';
@ -215,20 +169,20 @@ TEST(IteratorTest, TruncatingBackInserter) {
}
TEST(IteratorTest, IsOutputIterator) {
EXPECT_TRUE(fmt::internal::is_output_iterator<char*>::value);
EXPECT_FALSE(fmt::internal::is_output_iterator<const char*>::value);
EXPECT_FALSE(fmt::internal::is_output_iterator<std::string>::value);
EXPECT_TRUE(fmt::internal::is_output_iterator<
EXPECT_TRUE(fmt::detail::is_output_iterator<char*>::value);
EXPECT_FALSE(fmt::detail::is_output_iterator<const char*>::value);
EXPECT_FALSE(fmt::detail::is_output_iterator<std::string>::value);
EXPECT_TRUE(fmt::detail::is_output_iterator<
std::back_insert_iterator<std::string>>::value);
EXPECT_TRUE(fmt::internal::is_output_iterator<std::string::iterator>::value);
EXPECT_TRUE(fmt::detail::is_output_iterator<std::string::iterator>::value);
EXPECT_FALSE(
fmt::internal::is_output_iterator<std::string::const_iterator>::value);
EXPECT_FALSE(fmt::internal::is_output_iterator<std::list<char>>::value);
fmt::detail::is_output_iterator<std::string::const_iterator>::value);
EXPECT_FALSE(fmt::detail::is_output_iterator<std::list<char>>::value);
EXPECT_TRUE(
fmt::internal::is_output_iterator<std::list<char>::iterator>::value);
EXPECT_FALSE(fmt::internal::is_output_iterator<
std::list<char>::const_iterator>::value);
EXPECT_FALSE(fmt::internal::is_output_iterator<uint32_pair>::value);
fmt::detail::is_output_iterator<std::list<char>::iterator>::value);
EXPECT_FALSE(
fmt::detail::is_output_iterator<std::list<char>::const_iterator>::value);
EXPECT_FALSE(fmt::detail::is_output_iterator<uint32_pair>::value);
}
TEST(MemoryBufferTest, Ctor) {
@ -343,10 +297,10 @@ TEST(MemoryBufferTest, Grow) {
mock_allocator<int> alloc;
struct TestMemoryBuffer : Base {
TestMemoryBuffer(Allocator alloc) : Base(alloc) {}
void grow(std::size_t size) { Base::grow(size); }
void grow(size_t size) { Base::grow(size); }
} buffer((Allocator(&alloc)));
buffer.resize(7);
using fmt::internal::to_unsigned;
using fmt::detail::to_unsigned;
for (int i = 0; i < 7; ++i) buffer[to_unsigned(i)] = i * i;
EXPECT_EQ(10u, buffer.capacity());
int mem[20];
@ -371,7 +325,7 @@ TEST(MemoryBufferTest, Allocator) {
basic_memory_buffer<char, 10, TestAllocator> buffer2(
(TestAllocator(&alloc)));
EXPECT_EQ(&alloc, buffer2.get_allocator().get());
std::size_t size = 2 * fmt::inline_buffer_size;
size_t size = 2 * fmt::inline_buffer_size;
EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem));
buffer2.reserve(size);
EXPECT_CALL(alloc, deallocate(&mem, size));
@ -382,7 +336,7 @@ TEST(MemoryBufferTest, ExceptionInDeallocate) {
typedef allocator_ref<mock_allocator<char>> TestAllocator;
StrictMock<mock_allocator<char>> alloc;
basic_memory_buffer<char, 10, TestAllocator> buffer((TestAllocator(&alloc)));
std::size_t size = 2 * fmt::inline_buffer_size;
size_t size = 2 * fmt::inline_buffer_size;
std::vector<char> mem(size);
{
EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem[0]));
@ -397,27 +351,27 @@ TEST(MemoryBufferTest, ExceptionInDeallocate) {
EXPECT_THROW(buffer.reserve(2 * size), std::exception);
EXPECT_EQ(&mem2[0], &buffer[0]);
// Check that the data has been copied.
for (std::size_t i = 0; i < size; ++i) EXPECT_EQ('x', buffer[i]);
for (size_t i = 0; i < size; ++i) EXPECT_EQ('x', buffer[i]);
}
EXPECT_CALL(alloc, deallocate(&mem2[0], 2 * size));
}
TEST(UtilTest, UTF8ToUTF16) {
fmt::internal::utf8_to_utf16 u("лошадка");
fmt::detail::utf8_to_utf16 u("лошадка");
EXPECT_EQ(L"\x043B\x043E\x0448\x0430\x0434\x043A\x0430", u.str());
EXPECT_EQ(7, u.size());
// U+10437 { DESERET SMALL LETTER YEE }
EXPECT_EQ(L"\xD801\xDC37", fmt::internal::utf8_to_utf16("𐐷").str());
EXPECT_THROW_MSG(fmt::internal::utf8_to_utf16("\xc3\x28"), std::runtime_error,
EXPECT_EQ(L"\xD801\xDC37", fmt::detail::utf8_to_utf16("𐐷").str());
EXPECT_THROW_MSG(fmt::detail::utf8_to_utf16("\xc3\x28"), std::runtime_error,
"invalid utf8");
EXPECT_THROW_MSG(fmt::internal::utf8_to_utf16(fmt::string_view("л", 1)),
EXPECT_THROW_MSG(fmt::detail::utf8_to_utf16(fmt::string_view("л", 1)),
std::runtime_error, "invalid utf8");
EXPECT_EQ(L"123456", fmt::internal::utf8_to_utf16("123456").str());
EXPECT_EQ(L"123456", fmt::detail::utf8_to_utf16("123456").str());
}
TEST(UtilTest, UTF8ToUTF16EmptyString) {
std::string s = "";
fmt::internal::utf8_to_utf16 u(s.c_str());
fmt::detail::utf8_to_utf16 u(s.c_str());
EXPECT_EQ(L"", u.str());
EXPECT_EQ(s.size(), u.size());
}
@ -479,101 +433,6 @@ TEST(StringViewTest, Ctor) {
EXPECT_EQ(4u, string_view(std::string("defg")).size());
}
TEST(WriterTest, Data) {
memory_buffer buf;
fmt::internal::writer w(buf);
w.write(42);
EXPECT_EQ("42", to_string(buf));
}
TEST(WriterTest, WriteInt) {
CHECK_WRITE(42);
CHECK_WRITE(-42);
CHECK_WRITE(static_cast<short>(12));
CHECK_WRITE(34u);
CHECK_WRITE(std::numeric_limits<int>::min());
CHECK_WRITE(max_value<int>());
CHECK_WRITE(max_value<unsigned>());
}
TEST(WriterTest, WriteLong) {
CHECK_WRITE(56l);
CHECK_WRITE(78ul);
CHECK_WRITE(std::numeric_limits<long>::min());
CHECK_WRITE(max_value<long>());
CHECK_WRITE(max_value<unsigned long>());
}
TEST(WriterTest, WriteLongLong) {
CHECK_WRITE(56ll);
CHECK_WRITE(78ull);
CHECK_WRITE(std::numeric_limits<long long>::min());
CHECK_WRITE(max_value<long long>());
CHECK_WRITE(max_value<unsigned long long>());
}
TEST(WriterTest, WriteDouble) {
CHECK_WRITE(4.2);
CHECK_WRITE(-4.2);
auto min = std::numeric_limits<double>::min();
auto max = max_value<double>();
if (fmt::internal::use_grisu<double>()) {
EXPECT_EQ("2.2250738585072014e-308", fmt::format("{}", min));
EXPECT_EQ("1.7976931348623157e+308", fmt::format("{}", max));
} else {
CHECK_WRITE(min);
CHECK_WRITE(max);
}
}
TEST(WriterTest, WriteLongDouble) {
CHECK_WRITE(4.2l);
CHECK_WRITE_CHAR(-4.2l);
std::wstring str;
std_format(4.2l, str);
if (str[0] != '-')
CHECK_WRITE_WCHAR(-4.2l);
else
fmt::print("warning: long double formatting with std::swprintf is broken");
auto min = std::numeric_limits<long double>::min();
auto max = max_value<long double>();
if (fmt::internal::use_grisu<long double>()) {
EXPECT_EQ("2.2250738585072014e-308", fmt::format("{}", min));
EXPECT_EQ("1.7976931348623157e+308", fmt::format("{}", max));
} else {
CHECK_WRITE(min);
CHECK_WRITE(max);
}
}
TEST(WriterTest, WriteDoubleAtBufferBoundary) {
memory_buffer buf;
fmt::internal::writer writer(buf);
for (int i = 0; i < 100; ++i) writer.write(1.23456789);
}
TEST(WriterTest, WriteDoubleWithFilledBuffer) {
memory_buffer buf;
fmt::internal::writer writer(buf);
// Fill the buffer.
for (int i = 0; i < fmt::inline_buffer_size; ++i) writer.write(' ');
writer.write(1.2);
fmt::string_view sv(buf.data(), buf.size());
sv.remove_prefix(fmt::inline_buffer_size);
EXPECT_EQ("1.2", sv);
}
TEST(WriterTest, WriteChar) { CHECK_WRITE('a'); }
TEST(WriterTest, WriteWideChar) { CHECK_WRITE_WCHAR(L'a'); }
TEST(WriterTest, WriteString) {
CHECK_WRITE_CHAR("abc");
CHECK_WRITE_WCHAR("abc");
}
TEST(WriterTest, WriteWideString) { CHECK_WRITE_WCHAR(L"abc"); }
TEST(FormatToTest, FormatWithoutArgs) {
std::string s;
fmt::format_to(std::back_inserter(s), "test");
@ -640,15 +499,14 @@ TEST(FormatterTest, ArgErrors) {
EXPECT_THROW_MSG(format("{"), format_error, "invalid format string");
EXPECT_THROW_MSG(format("{?}"), format_error, "invalid format string");
EXPECT_THROW_MSG(format("{0"), format_error, "invalid format string");
EXPECT_THROW_MSG(format("{0}"), format_error, "argument index out of range");
EXPECT_THROW_MSG(format("{0}"), format_error, "argument not found");
EXPECT_THROW_MSG(format("{00}", 42), format_error, "invalid format string");
char format_str[BUFFER_SIZE];
safe_sprintf(format_str, "{%u", INT_MAX);
EXPECT_THROW_MSG(format(format_str), format_error, "invalid format string");
safe_sprintf(format_str, "{%u}", INT_MAX);
EXPECT_THROW_MSG(format(format_str), format_error,
"argument index out of range");
EXPECT_THROW_MSG(format(format_str), format_error, "argument not found");
safe_sprintf(format_str, "{%u", INT_MAX + 1u);
EXPECT_THROW_MSG(format(format_str), format_error, "number is too big");
@ -673,19 +531,18 @@ template <> struct TestFormat<0> {
TEST(FormatterTest, ManyArgs) {
EXPECT_EQ("19", TestFormat<20>::format("{19}"));
EXPECT_THROW_MSG(TestFormat<20>::format("{20}"), format_error,
"argument index out of range");
"argument not found");
EXPECT_THROW_MSG(TestFormat<21>::format("{21}"), format_error,
"argument index out of range");
enum { max_packed_args = fmt::internal::max_packed_args };
"argument not found");
enum { max_packed_args = fmt::detail::max_packed_args };
std::string format_str = fmt::format("{{{}}}", max_packed_args + 1);
EXPECT_THROW_MSG(TestFormat<max_packed_args>::format(format_str),
format_error, "argument index out of range");
format_error, "argument not found");
}
TEST(FormatterTest, NamedArg) {
EXPECT_EQ("1/a/A", format("{_1}/{a_}/{A_}", fmt::arg("a_", 'a'),
fmt::arg("A_", "A"), fmt::arg("_1", 1)));
EXPECT_THROW_MSG(format("{a}"), format_error, "argument not found");
EXPECT_EQ(" -42", format("{0:{width}}", -42, fmt::arg("width", 4)));
EXPECT_EQ("st", format("{0:.{precision}}", "str", fmt::arg("precision", 2)));
EXPECT_EQ("1 2", format("{} {two}", 1, fmt::arg("two", 2)));
@ -695,6 +552,8 @@ TEST(FormatterTest, NamedArg) {
fmt::arg("i", 0), fmt::arg("j", 0), fmt::arg("k", 0),
fmt::arg("l", 0), fmt::arg("m", 0), fmt::arg("n", 0),
fmt::arg("o", 0), fmt::arg("p", 0)));
EXPECT_THROW_MSG(format("{a}"), format_error, "argument not found");
EXPECT_THROW_MSG(format("{a}", 42), format_error, "argument not found");
}
TEST(FormatterTest, AutoArgIndex) {
@ -708,7 +567,7 @@ TEST(FormatterTest, AutoArgIndex) {
"cannot switch from manual to automatic argument indexing");
EXPECT_THROW_MSG(format("{:.{0}}", 1.2345, 2), format_error,
"cannot switch from automatic to manual argument indexing");
EXPECT_THROW_MSG(format("{}"), format_error, "argument index out of range");
EXPECT_THROW_MSG(format("{}"), format_error, "argument not found");
}
TEST(FormatterTest, EmptySpecs) { EXPECT_EQ("42", format("{0:}", 42)); }
@ -747,38 +606,8 @@ TEST(FormatterTest, RightAlign) {
EXPECT_EQ(" 0xface", format("{0:>8}", reinterpret_cast<void*>(0xface)));
}
#if FMT_NUMERIC_ALIGN
TEST(FormatterTest, NumericAlign) {
EXPECT_EQ(" 42", format("{0:=4}", 42));
EXPECT_EQ("+ 42", format("{0:=+4}", 42));
EXPECT_EQ(" 42", format("{0:=4o}", 042));
EXPECT_EQ("+ 42", format("{0:=+4o}", 042));
EXPECT_EQ(" 42", format("{0:=4x}", 0x42));
EXPECT_EQ("+ 42", format("{0:=+4x}", 0x42));
EXPECT_EQ("- 42", format("{0:=5}", -42));
EXPECT_EQ(" 42", format("{0:=5}", 42u));
EXPECT_EQ("- 42", format("{0:=5}", -42l));
EXPECT_EQ(" 42", format("{0:=5}", 42ul));
EXPECT_EQ("- 42", format("{0:=5}", -42ll));
EXPECT_EQ(" 42", format("{0:=5}", 42ull));
EXPECT_EQ("- 42.0", format("{0:=7}", -42.0));
EXPECT_EQ("- 42.0", format("{0:=7}", -42.0l));
EXPECT_THROW_MSG(format("{0:=5", 'c'), format_error,
"missing '}' in format string");
EXPECT_THROW_MSG(format("{0:=5}", 'c'), format_error,
"invalid format specifier for char");
EXPECT_THROW_MSG(format("{0:=5}", "abc"), format_error,
"format specifier requires numeric argument");
EXPECT_THROW_MSG(format("{0:=8}", reinterpret_cast<void*>(0xface)),
format_error, "format specifier requires numeric argument");
EXPECT_EQ(" 1.0", fmt::format("{:= }", 1.0));
}
TEST(FormatToTest, FormatToNonbackInsertIteratorWithSignAndNumericAlignment) {
char buffer[16] = {};
fmt::format_to(fmt::internal::make_checked(buffer, 16), "{: =+}", 42.0);
EXPECT_STREQ("+42.0", buffer);
}
#if FMT_DEPRECATED_NUMERIC_ALIGN
TEST(FormatterTest, NumericAlign) { EXPECT_EQ("0042", format("{0:=4}", 42)); }
#endif
TEST(FormatterTest, CenterAlign) {
@ -969,7 +798,7 @@ TEST(FormatterTest, Width) {
safe_sprintf(format_str, "{0:%u", UINT_MAX);
increment(format_str + 3);
EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big");
std::size_t size = std::strlen(format_str);
size_t size = std::strlen(format_str);
format_str[size] = '}';
format_str[size + 1] = 0;
EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big");
@ -999,7 +828,7 @@ TEST(FormatterTest, RuntimeWidth) {
safe_sprintf(format_str, "{0:{%u", UINT_MAX);
increment(format_str + 4);
EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big");
std::size_t size = std::strlen(format_str);
size_t size = std::strlen(format_str);
format_str[size] = '}';
format_str[size + 1] = 0;
EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big");
@ -1011,8 +840,7 @@ TEST(FormatterTest, RuntimeWidth) {
EXPECT_THROW_MSG(format("{0:{}", 0), format_error,
"cannot switch from manual to automatic argument indexing");
EXPECT_THROW_MSG(format("{0:{?}}", 0), format_error, "invalid format string");
EXPECT_THROW_MSG(format("{0:{1}}", 0), format_error,
"argument index out of range");
EXPECT_THROW_MSG(format("{0:{1}}", 0), format_error, "argument not found");
EXPECT_THROW_MSG(format("{0:{0:}}", 0), format_error,
"invalid format string");
@ -1053,7 +881,7 @@ TEST(FormatterTest, Precision) {
safe_sprintf(format_str, "{0:.%u", UINT_MAX);
increment(format_str + 4);
EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big");
std::size_t size = std::strlen(format_str);
size_t size = std::strlen(format_str);
format_str[size] = '}';
format_str[size + 1] = 0;
EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big");
@ -1134,7 +962,7 @@ TEST(FormatterTest, Precision) {
EXPECT_THROW_MSG(format("{0:.2f}", reinterpret_cast<void*>(0xcafe)),
format_error,
"precision not allowed for this argument type");
EXPECT_THROW_MSG(format("{:.{}e}", 42.0, fmt::internal::max_value<int>()),
EXPECT_THROW_MSG(format("{:.{}e}", 42.0, fmt::detail::max_value<int>()),
format_error, "number is too big");
EXPECT_EQ("st", format("{0:.2}", "str"));
@ -1145,7 +973,7 @@ TEST(FormatterTest, RuntimePrecision) {
safe_sprintf(format_str, "{0:.{%u", UINT_MAX);
increment(format_str + 5);
EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big");
std::size_t size = std::strlen(format_str);
size_t size = std::strlen(format_str);
format_str[size] = '}';
format_str[size + 1] = 0;
EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big");
@ -1160,8 +988,7 @@ TEST(FormatterTest, RuntimePrecision) {
"invalid format string");
EXPECT_THROW_MSG(format("{0:.{1}", 0, 0), format_error,
"precision not allowed for this argument type");
EXPECT_THROW_MSG(format("{0:.{1}}", 0), format_error,
"argument index out of range");
EXPECT_THROW_MSG(format("{0:.{1}}", 0), format_error, "argument not found");
EXPECT_THROW_MSG(format("{0:.{0:}}", 0), format_error,
"invalid format string");
@ -1256,7 +1083,8 @@ TEST(FormatterTest, FormatShort) {
TEST(FormatterTest, FormatInt) {
EXPECT_THROW_MSG(format("{0:v", 42), format_error,
"missing '}' in format string");
check_unknown_types(42, "bBdoxXnL", "integer");
check_unknown_types(42, "bBdoxXnLc", "integer");
EXPECT_EQ("x", format("{:c}", static_cast<int>('x')));
}
TEST(FormatterTest, FormatBin) {
@ -1396,7 +1224,6 @@ TEST(FormatterTest, FormatOct) {
}
TEST(FormatterTest, FormatIntLocale) {
EXPECT_EQ("1234", format("{:n}", 1234));
EXPECT_EQ("1234", format("{:L}", 1234));
}
@ -1413,7 +1240,7 @@ TEST(FormatterTest, FormatFloat) {
}
TEST(FormatterTest, FormatDouble) {
check_unknown_types(1.2, "eEfFgGaAn%", "double");
check_unknown_types(1.2, "eEfFgGaAnL%", "double");
EXPECT_EQ("0.0", format("{:}", 0.0));
EXPECT_EQ("0.000000", format("{:f}", 0.0));
EXPECT_EQ("0", format("{:g}", 0.0));
@ -1422,6 +1249,7 @@ TEST(FormatterTest, FormatDouble) {
EXPECT_EQ("392.65", format("{:G}", 392.65));
EXPECT_EQ("392.650000", format("{:f}", 392.65));
EXPECT_EQ("392.650000", format("{:F}", 392.65));
EXPECT_EQ("42", format("{:L}", 42.0));
char buffer[BUFFER_SIZE];
safe_sprintf(buffer, "%e", 392.65);
EXPECT_EQ(buffer, format("{0:e}", 392.65));
@ -1492,7 +1320,7 @@ TEST(FormatterTest, FormatLongDouble) {
}
TEST(FormatterTest, FormatChar) {
const char types[] = "cbBdoxXnL";
const char types[] = "cbBdoxXL";
check_unknown_types('a', types, "char");
EXPECT_EQ("a", format("{0}", 'a'));
EXPECT_EQ("z", format("{0:c}", 'z'));
@ -1608,12 +1436,46 @@ TEST(FormatterTest, FormatExplicitlyConvertibleToStdStringView) {
}
#endif
// std::is_constructible is broken in MSVC until version 2015.
#if !FMT_MSC_VER || FMT_MSC_VER >= 1900
struct explicitly_convertible_to_wstring_view {
explicit operator fmt::wstring_view() const { return L"foo"; }
};
TEST(FormatTest, FormatExplicitlyConvertibleToWStringView) {
EXPECT_EQ(L"foo",
fmt::format(L"{}", explicitly_convertible_to_wstring_view()));
}
#endif
namespace fake_qt {
class QString {
public:
QString(const wchar_t* s) : s_(std::make_shared<std::wstring>(s)) {}
const wchar_t* utf16() const FMT_NOEXCEPT { return s_->data(); }
int size() const FMT_NOEXCEPT { return static_cast<int>(s_->size()); }
private:
std::shared_ptr<std::wstring> s_;
};
fmt::basic_string_view<wchar_t> to_string_view(const QString& s) FMT_NOEXCEPT {
return {s.utf16(), static_cast<size_t>(s.size())};
}
} // namespace fake_qt
TEST(FormatTest, FormatForeignStrings) {
using fake_qt::QString;
EXPECT_EQ(fmt::format(QString(L"{}"), 42), L"42");
EXPECT_EQ(fmt::format(QString(L"{}"), QString(L"42")), L"42");
}
FMT_BEGIN_NAMESPACE
template <> struct formatter<Date> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
auto it = ctx.begin();
if (*it == 'd') ++it;
if (it != ctx.end() && *it == 'd') ++it;
return it;
}
@ -1649,7 +1511,7 @@ TEST(FormatterTest, CustomFormat) {
TEST(FormatterTest, CustomFormatTo) {
char buf[10] = {};
auto end =
&*fmt::format_to(fmt::internal::make_checked(buf, 10), "{}", Answer());
&*fmt::format_to(fmt::detail::make_checked(buf, 10), "{}", Answer());
EXPECT_EQ(end, buf + 2);
EXPECT_STREQ(buf, "42");
}
@ -1759,7 +1621,7 @@ TEST(FormatTest, Print) {
"Don't panic!");
#endif
// Check that the wide print overload compiles.
if (fmt::internal::const_check(false)) fmt::print(L"test");
if (fmt::detail::const_check(false)) fmt::print(L"test");
}
TEST(FormatTest, Variadic) {
@ -1770,9 +1632,9 @@ TEST(FormatTest, Variadic) {
TEST(FormatTest, Dynamic) {
typedef fmt::format_context ctx;
std::vector<fmt::basic_format_arg<ctx>> args;
args.emplace_back(fmt::internal::make_arg<ctx>(42));
args.emplace_back(fmt::internal::make_arg<ctx>("abc1"));
args.emplace_back(fmt::internal::make_arg<ctx>(1.5f));
args.emplace_back(fmt::detail::make_arg<ctx>(42));
args.emplace_back(fmt::detail::make_arg<ctx>("abc1"));
args.emplace_back(fmt::detail::make_arg<ctx>(1.5f));
std::string result = fmt::vformat(
"{} and {} and {}",
@ -1944,10 +1806,10 @@ TEST(FormatTest, StrongEnum) {
}
#endif
using buffer_range = fmt::buffer_range<char>;
using buffer_iterator = fmt::format_context::iterator;
class mock_arg_formatter
: public fmt::internal::arg_formatter_base<buffer_range> {
: public fmt::detail::arg_formatter_base<buffer_iterator, char> {
private:
#if FMT_USE_INT128
MOCK_METHOD1(call, void(__int128_t value));
@ -1956,24 +1818,23 @@ class mock_arg_formatter
#endif
public:
typedef fmt::internal::arg_formatter_base<buffer_range> base;
typedef buffer_range range;
using base = fmt::detail::arg_formatter_base<buffer_iterator, char>;
mock_arg_formatter(fmt::format_context& ctx, fmt::format_parse_context*,
fmt::format_specs* s = nullptr)
: base(fmt::internal::get_container(ctx.out()), s, ctx.locale()) {
fmt::format_specs* s = nullptr, const char* = nullptr)
: base(ctx.out(), s, ctx.locale()) {
EXPECT_CALL(*this, call(42));
}
template <typename T>
typename std::enable_if<fmt::internal::is_integral<T>::value, iterator>::type
typename std::enable_if<fmt::detail::is_integral<T>::value, iterator>::type
operator()(T value) {
call(value);
return base::operator()(value);
}
template <typename T>
typename std::enable_if<!fmt::internal::is_integral<T>::value, iterator>::type
typename std::enable_if<!fmt::detail::is_integral<T>::value, iterator>::type
operator()(T value) {
return base::operator()(value);
}
@ -1985,7 +1846,9 @@ class mock_arg_formatter
static void custom_vformat(fmt::string_view format_str, fmt::format_args args) {
fmt::memory_buffer buffer;
fmt::vformat_to<mock_arg_formatter>(buffer, format_str, args);
fmt::detail::buffer<char>& base = buffer;
fmt::vformat_to<mock_arg_formatter>(std::back_inserter(base), format_str,
args);
}
template <typename... Args>
@ -2025,7 +1888,7 @@ TEST(FormatTest, DynamicFormatter) {
"cannot switch from manual to automatic argument indexing");
EXPECT_THROW_MSG(format("{:{0}}", num), format_error,
"cannot switch from automatic to manual argument indexing");
#if FMT_NUMERIC_ALIGN
#if FMT_DEPRECATED_NUMERIC_ALIGN
EXPECT_THROW_MSG(format("{:=}", str), format_error,
"format specifier requires numeric argument");
#endif
@ -2043,9 +1906,30 @@ TEST(FormatTest, DynamicFormatter) {
"precision not allowed for this argument type");
}
namespace adl_test {
namespace fmt {
namespace detail {
struct foo {};
template <typename, typename OutputIt> void write(OutputIt, foo) = delete;
} // namespace detail
} // namespace fmt
} // namespace adl_test
FMT_BEGIN_NAMESPACE
template <>
struct formatter<adl_test::fmt::detail::foo> : formatter<std::string> {
template <typename FormatContext>
auto format(adl_test::fmt::detail::foo, FormatContext& ctx)
-> decltype(ctx.out()) {
return formatter<std::string>::format("foo", ctx);
}
};
FMT_END_NAMESPACE
TEST(FormatTest, ToString) {
EXPECT_EQ("42", fmt::to_string(42));
EXPECT_EQ("0x1234", fmt::to_string(reinterpret_cast<void*>(0x1234)));
EXPECT_EQ("foo", fmt::to_string(adl_test::fmt::detail::foo()));
}
TEST(FormatTest, ToWString) { EXPECT_EQ(L"42", fmt::to_wstring(42)); }
@ -2159,7 +2043,7 @@ struct test_arg_id_handler {
template <size_t N>
FMT_CONSTEXPR test_arg_id_handler parse_arg_id(const char (&s)[N]) {
test_arg_id_handler h;
fmt::internal::parse_arg_id(s, s + N, h);
fmt::detail::parse_arg_id(s, s + N, h);
return h;
}
@ -2180,9 +2064,9 @@ struct test_format_specs_handler {
fmt::align_t align = fmt::align::none;
char fill = 0;
int width = 0;
fmt::internal::arg_ref<char> width_ref;
fmt::detail::arg_ref<char> width_ref;
int precision = 0;
fmt::internal::arg_ref<char> precision_ref;
fmt::detail::arg_ref<char> precision_ref;
char type = 0;
// Workaround for MSVC2017 bug that results in "expression did not evaluate
@ -2208,12 +2092,12 @@ struct test_format_specs_handler {
FMT_CONSTEXPR void on_zero() { res = ZERO; }
FMT_CONSTEXPR void on_width(int w) { width = w; }
FMT_CONSTEXPR void on_dynamic_width(fmt::internal::auto_id) {}
FMT_CONSTEXPR void on_dynamic_width(fmt::detail::auto_id) {}
FMT_CONSTEXPR void on_dynamic_width(int index) { width_ref = index; }
FMT_CONSTEXPR void on_dynamic_width(string_view) {}
FMT_CONSTEXPR void on_precision(int p) { precision = p; }
FMT_CONSTEXPR void on_dynamic_precision(fmt::internal::auto_id) {}
FMT_CONSTEXPR void on_dynamic_precision(fmt::detail::auto_id) {}
FMT_CONSTEXPR void on_dynamic_precision(int index) { precision_ref = index; }
FMT_CONSTEXPR void on_dynamic_precision(string_view) {}
@ -2225,7 +2109,7 @@ struct test_format_specs_handler {
template <size_t N>
FMT_CONSTEXPR test_format_specs_handler parse_test_specs(const char (&s)[N]) {
test_format_specs_handler h;
fmt::internal::parse_format_specs(s, s + N, h);
fmt::detail::parse_format_specs(s, s + N, h);
return h;
}
@ -2259,8 +2143,9 @@ struct test_parse_context {
};
struct test_context {
typedef char char_type;
typedef fmt::basic_format_arg<test_context> format_arg;
using char_type = char;
using format_arg = fmt::basic_format_arg<test_context>;
using parse_context_type = fmt::format_parse_context;
template <typename T> struct formatter_type {
typedef fmt::formatter<T, char_type> type;
@ -2268,7 +2153,7 @@ struct test_context {
template <typename Id>
FMT_CONSTEXPR fmt::basic_format_arg<test_context> arg(Id id) {
return fmt::internal::make_arg<test_context>(id);
return fmt::detail::make_arg<test_context>(id);
}
void on_error(const char*) {}
@ -2281,7 +2166,7 @@ FMT_CONSTEXPR fmt::format_specs parse_specs(const char (&s)[N]) {
auto specs = fmt::format_specs();
auto parse_ctx = test_parse_context();
auto ctx = test_context();
fmt::internal::specs_handler<test_parse_context, test_context> h(
fmt::detail::specs_handler<test_parse_context, test_context> h(
specs, parse_ctx, ctx);
parse_format_specs(s, s + N, h);
return specs;
@ -2305,11 +2190,11 @@ TEST(FormatTest, ConstexprSpecsHandler) {
}
template <size_t N>
FMT_CONSTEXPR fmt::internal::dynamic_format_specs<char> parse_dynamic_specs(
FMT_CONSTEXPR fmt::detail::dynamic_format_specs<char> parse_dynamic_specs(
const char (&s)[N]) {
fmt::internal::dynamic_format_specs<char> specs;
fmt::detail::dynamic_format_specs<char> specs;
test_parse_context ctx{};
fmt::internal::dynamic_specs_handler<test_parse_context> h(specs, ctx);
fmt::detail::dynamic_specs_handler<test_parse_context> h(specs, ctx);
parse_format_specs(s, s + N, h);
return specs;
}
@ -2333,8 +2218,8 @@ TEST(FormatTest, ConstexprDynamicSpecsHandler) {
template <size_t N>
FMT_CONSTEXPR test_format_specs_handler check_specs(const char (&s)[N]) {
fmt::internal::specs_checker<test_format_specs_handler> checker(
test_format_specs_handler(), fmt::internal::type::double_type);
fmt::detail::specs_checker<test_format_specs_handler> checker(
test_format_specs_handler(), fmt::detail::type::double_type);
parse_format_specs(s, s + N, checker);
return checker;
}
@ -2359,13 +2244,14 @@ TEST(FormatTest, ConstexprSpecsChecker) {
struct test_format_string_handler {
FMT_CONSTEXPR void on_text(const char*, const char*) {}
FMT_CONSTEXPR void on_arg_id() {}
FMT_CONSTEXPR int on_arg_id() { return 0; }
template <typename T> FMT_CONSTEXPR void on_arg_id(T) {}
template <typename T> FMT_CONSTEXPR int on_arg_id(T) { return 0; }
FMT_CONSTEXPR void on_replacement_field(const char*) {}
FMT_CONSTEXPR void on_replacement_field(int, const char*) {}
FMT_CONSTEXPR const char* on_format_specs(const char* begin, const char*) {
FMT_CONSTEXPR const char* on_format_specs(int, const char* begin,
const char*) {
return begin;
}
@ -2376,7 +2262,7 @@ struct test_format_string_handler {
template <size_t N> FMT_CONSTEXPR bool parse_string(const char (&s)[N]) {
test_format_string_handler h;
fmt::internal::parse_format_string<true>(fmt::string_view(s, N - 1), h);
fmt::detail::parse_format_string<true>(fmt::string_view(s, N - 1), h);
return !h.error;
}
@ -2420,8 +2306,10 @@ FMT_CONSTEXPR bool equal(const char* s1, const char* s2) {
template <typename... Args>
FMT_CONSTEXPR bool test_error(const char* fmt, const char* expected_error) {
const char* actual_error = nullptr;
fmt::internal::do_check_format_string<char, test_error_handler, Args...>(
string_view(fmt, len(fmt)), test_error_handler(actual_error));
string_view s(fmt, len(fmt));
fmt::detail::format_string_checker<char, test_error_handler, Args...> checker(
s, test_error_handler(actual_error));
fmt::detail::parse_format_string<true>(s, checker);
return equal(actual_error, expected_error);
}
@ -2434,13 +2322,13 @@ TEST(FormatTest, FormatStringErrors) {
EXPECT_ERROR_NOARGS("foo", nullptr);
EXPECT_ERROR_NOARGS("}", "unmatched '}' in format string");
EXPECT_ERROR("{0:s", "unknown format specifier", Date);
# if FMT_MSC_VER >= 1916
// This causes an internal compiler error in MSVC2017.
# if !FMT_MSC_VER || FMT_MSC_VER >= 1916
// This causes an detail compiler error in MSVC2017.
EXPECT_ERROR("{:{<}", "invalid fill character '{'", int);
EXPECT_ERROR("{:10000000000}", "number is too big", int);
EXPECT_ERROR("{:.10000000000}", "number is too big", int);
EXPECT_ERROR_NOARGS("{:x}", "argument index out of range");
# if FMT_NUMERIC_ALIGN
EXPECT_ERROR_NOARGS("{:x}", "argument not found");
# if FMT_DEPRECATED_NUMERIC_ALIGN
EXPECT_ERROR("{0:=5", "unknown format specifier", int);
EXPECT_ERROR("{:=}", "format specifier requires numeric argument",
const char*);
@ -2458,6 +2346,8 @@ TEST(FormatTest, FormatStringErrors) {
EXPECT_ERROR("{:+}", "format specifier requires signed argument", unsigned);
EXPECT_ERROR("{:-}", "format specifier requires signed argument", unsigned);
EXPECT_ERROR("{: }", "format specifier requires signed argument", unsigned);
EXPECT_ERROR("{:{}}", "argument not found", int);
EXPECT_ERROR("{:.{}}", "argument not found", double);
EXPECT_ERROR("{:.2}", "precision not allowed for this argument type", int);
EXPECT_ERROR("{:s}", "invalid type specifier", int);
EXPECT_ERROR("{:s}", "invalid type specifier", bool);
@ -2480,8 +2370,8 @@ TEST(FormatTest, FormatStringErrors) {
EXPECT_ERROR("{:.{0x}}", "invalid format string", int);
EXPECT_ERROR("{:.{-}}", "invalid format string", int);
EXPECT_ERROR("{:.x}", "missing precision specifier", int);
EXPECT_ERROR_NOARGS("{}", "argument index out of range");
EXPECT_ERROR("{1}", "argument index out of range", int);
EXPECT_ERROR_NOARGS("{}", "argument not found");
EXPECT_ERROR("{1}", "argument not found", int);
EXPECT_ERROR("{1}{}",
"cannot switch from manual to automatic argument indexing", int,
int);
@ -2492,7 +2382,7 @@ TEST(FormatTest, FormatStringErrors) {
TEST(FormatTest, VFormatTo) {
typedef fmt::format_context context;
fmt::basic_format_arg<context> arg = fmt::internal::make_arg<context>(42);
fmt::basic_format_arg<context> arg = fmt::detail::make_arg<context>(42);
fmt::basic_format_args<context> args(&arg, 1);
std::string s;
fmt::vformat_to(std::back_inserter(s), "{}", args);
@ -2502,7 +2392,7 @@ TEST(FormatTest, VFormatTo) {
EXPECT_EQ("42", s);
typedef fmt::wformat_context wcontext;
fmt::basic_format_arg<wcontext> warg = fmt::internal::make_arg<wcontext>(42);
fmt::basic_format_arg<wcontext> warg = fmt::detail::make_arg<wcontext>(42);
fmt::basic_format_args<wcontext> wargs(&warg, 1);
std::wstring w;
fmt::vformat_to(std::back_inserter(w), L"{}", wargs);
@ -2530,7 +2420,7 @@ TEST(FormatTest, EmphasisNonHeaderOnly) {
}
TEST(FormatTest, CharTraitsIsNotAmbiguous) {
// Test that we don't inject internal names into the std namespace.
// Test that we don't inject detail names into the std namespace.
using namespace std;
char_traits<char>::char_type c;
(void)c;
@ -2568,13 +2458,12 @@ template <typename S> std::string from_u8str(const S& str) {
}
TEST(FormatTest, FormatUTF8Precision) {
using str_type = std::basic_string<fmt::internal::char8_type>;
str_type format(
reinterpret_cast<const fmt::internal::char8_type*>(u8"{:.4}"));
str_type str(reinterpret_cast<const fmt::internal::char8_type*>(
using str_type = std::basic_string<fmt::detail::char8_type>;
str_type format(reinterpret_cast<const fmt::detail::char8_type*>(u8"{:.4}"));
str_type str(reinterpret_cast<const fmt::detail::char8_type*>(
u8"caf\u00e9s")); // cafés
auto result = fmt::format(format, str);
EXPECT_EQ(fmt::internal::count_code_points(result), 4);
EXPECT_EQ(fmt::detail::count_code_points(result), 4);
EXPECT_EQ(result.size(), 5);
EXPECT_EQ(from_u8str(result), from_u8str(str.substr(0, 5)));
}

View file

@ -7,14 +7,19 @@ in fmt. It is a part of the continous fuzzing at
The source code is modified to make the fuzzing possible without locking up on
resource exhaustion:
```cpp
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
#ifdef FMT_FUZZ
if(spec.precision>100000) {
throw std::runtime_error("fuzz mode - avoiding large precision");
}
#endif
```
This macro is the defacto standard for making fuzzing practically possible, see
[the libFuzzer documentation](https://llvm.org/docs/LibFuzzer.html#fuzzer-friendly-build-mode).
This macro `FMT_FUZZ` is enabled on OSS-Fuzz builds and makes fuzzing
practically possible. It is used in fmt code to prevent resource exhaustion in
fuzzing mode.
The macro `FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION` is the
defacto standard for making fuzzing practically possible to disable certain
fuzzing-unfriendly features (for example, randomness), see [the libFuzzer
documentation](https://llvm.org/docs/LibFuzzer.html#fuzzer-friendly-build-mode).
## Running the fuzzers locally

View file

@ -25,7 +25,7 @@ void invoke_inner(fmt::string_view formatstring, const Item item) {
// Item is the underlying type for duration (int, long etc)
template <typename Item>
void invoke_outer(const uint8_t* Data, std::size_t Size, const int scaling) {
void invoke_outer(const uint8_t* Data, size_t Size, const int scaling) {
// always use a fixed location of the data
using fmt_fuzzer::Nfixed;
@ -97,7 +97,7 @@ void invoke_outer(const uint8_t* Data, std::size_t Size, const int scaling) {
// doit_impl<Item,std::yotta>(buf.data(),item);
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, std::size_t Size) {
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t Size) {
if (Size <= 4) {
return 0;
}

View file

@ -4,7 +4,7 @@
#include <vector>
#include "fuzzer_common.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, std::size_t Size);
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t Size);
int main(int argc, char* argv[]) {
for (int i = 1; i < argc; ++i) {
std::ifstream in(argv[i]);
@ -13,7 +13,7 @@ int main(int argc, char* argv[]) {
const auto pos = in.tellg();
assert(pos >= 0);
in.seekg(0, std::ios_base::beg);
std::vector<char> buf(static_cast<std::size_t>(pos));
std::vector<char> buf(static_cast<size_t>(pos));
in.read(buf.data(), static_cast<long>(buf.size()));
assert(in.gcount() == pos);
LLVMFuzzerTestOneInput(fmt_fuzzer::as_bytes(buf.data()), buf.size());

View file

@ -10,7 +10,7 @@
#include "fuzzer_common.h"
template <typename Item1>
void invoke_fmt(const uint8_t* Data, std::size_t Size, unsigned int argsize) {
void invoke_fmt(const uint8_t* Data, size_t Size, unsigned int argsize) {
constexpr auto N1 = sizeof(Item1);
static_assert(N1 <= fmt_fuzzer::Nfixed, "Nfixed too small");
if (Size <= fmt_fuzzer::Nfixed) {
@ -29,11 +29,11 @@ void invoke_fmt(const uint8_t* Data, std::size_t Size, unsigned int argsize) {
// allocating buffers separately is slower, but increases chances
// of detecting memory errors
#if FMT_FUZZ_SEPARATE_ALLOCATION
std::vector<char> argnamebuffer(argsize);
std::vector<char> argnamebuffer(argsize + 1);
std::memcpy(argnamebuffer.data(), Data, argsize);
auto argname = fmt::string_view(argnamebuffer.data(), argsize);
auto argname = argnamebuffer.data();
#else
auto argname = fmt::string_view(fmt_fuzzer::as_chars(Data), argsize);
auto argname = fmt_fuzzer::as_chars(Data);
#endif
Data += argsize;
Size -= argsize;
@ -105,7 +105,7 @@ template <typename Callback> void invoke(int index, Callback callback) {
}
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, std::size_t Size) {
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t Size) {
if (Size <= 3) {
return 0;
}

View file

@ -13,7 +13,7 @@
using fmt_fuzzer::Nfixed;
template <typename Item>
void invoke_fmt(const uint8_t* Data, std::size_t Size) {
void invoke_fmt(const uint8_t* Data, size_t Size) {
constexpr auto N = sizeof(Item);
static_assert(N <= Nfixed, "Nfixed is too small");
if (Size <= Nfixed) {
@ -40,7 +40,7 @@ void invoke_fmt(const uint8_t* Data, std::size_t Size) {
#endif
}
void invoke_fmt_time(const uint8_t* Data, std::size_t Size) {
void invoke_fmt_time(const uint8_t* Data, size_t Size) {
using Item = std::time_t;
constexpr auto N = sizeof(Item);
static_assert(N <= Nfixed, "Nfixed too small");
@ -69,7 +69,7 @@ void invoke_fmt_time(const uint8_t* Data, std::size_t Size) {
}
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, std::size_t Size) {
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t Size) {
if (Size <= 3) {
return 0;
}

View file

@ -10,7 +10,7 @@
using fmt_fuzzer::Nfixed;
template <typename Item1, typename Item2>
void invoke_fmt(const uint8_t* Data, std::size_t Size) {
void invoke_fmt(const uint8_t* Data, size_t Size) {
constexpr auto N1 = sizeof(Item1);
constexpr auto N2 = sizeof(Item2);
static_assert(N1 <= Nfixed, "size1 exceeded");
@ -90,7 +90,7 @@ template <typename Callback> void invoke(int index, Callback callback) {
}
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, std::size_t Size) {
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t Size) {
if (Size <= 3) {
return 0;
}

View file

@ -10,7 +10,7 @@
constexpr auto Nfixed = fmt_fuzzer::Nfixed;
template <typename Item1, typename Item2>
void invoke_fmt(const uint8_t* Data, std::size_t Size) {
void invoke_fmt(const uint8_t* Data, size_t Size) {
constexpr auto N1 = sizeof(Item1);
constexpr auto N2 = sizeof(Item2);
static_assert(N1 <= Nfixed, "size1 exceeded");
@ -86,7 +86,7 @@ template <typename Callback> void invoke(int index, Callback callback) {
}
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, std::size_t Size) {
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t Size) {
if (Size <= 3) {
return 0;
}

View file

@ -344,6 +344,7 @@ class GTEST_API_ SingleFailureChecker {
# include <sys/mman.h> // NOLINT
# include <sys/time.h> // NOLINT
# include <unistd.h> // NOLINT
# include <string>
#elif GTEST_OS_SYMBIAN
@ -7728,6 +7729,7 @@ InternalRunDeathTestFlag* ParseInternalRunDeathTestFlag() {
# include <sys/syslimits.h>
#else
# include <limits.h>
# include <climits> // Some Linux distributions define PATH_MAX here.
#endif // GTEST_OS_WINDOWS_MOBILE
@ -8899,6 +8901,7 @@ const char* StringFromGTestEnv(const char* flag, const char* default_value) {
#include <ctype.h>
#include <stdio.h>
#include <ostream> // NOLINT
#include <string>
@ -9494,6 +9497,7 @@ const char* TypedTestCasePState::VerifyRegisteredTestNames(
// This file implements cardinalities.
#include <limits.h>
#include <ostream> // NOLINT
#include <sstream>
#include <string>
@ -9646,6 +9650,7 @@ GTEST_API_ Cardinality Exactly(int n) { return Between(n, n); }
// USE THEM IN USER CODE.
#include <ctype.h>
#include <ostream> // NOLINT
#include <string>
@ -9808,6 +9813,7 @@ GTEST_API_ void Log(LogSeverity severity, const string& message,
// utilities for defining matchers.
#include <string.h>
#include <sstream>
#include <string>
@ -10291,6 +10297,7 @@ bool UnorderedElementsAreMatcherImplBase::
// EXPECT_CALL).
#include <stdlib.h>
#include <iostream> // NOLINT
#include <map>
#include <set>

View file

@ -8,6 +8,7 @@
#include "gtest-extra.h"
#include <gtest/gtest-spi.h>
#include <algorithm>
#include <cstring>
#include <memory>
@ -167,22 +168,24 @@ TEST_F(SingleEvaluationTest, FailedEXPECT_WRITE) {
// Tests that assertion arguments are evaluated exactly once.
TEST_F(SingleEvaluationTest, WriteTests) {
// successful EXPECT_WRITE
EXPECT_WRITE(stdout,
{ // NOLINT
a_++;
std::printf("test");
},
(b_++, "test"));
EXPECT_WRITE(
stdout,
{ // NOLINT
a_++;
std::printf("test");
},
(b_++, "test"));
EXPECT_EQ(1, a_);
EXPECT_EQ(1, b_);
// failed EXPECT_WRITE
EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout,
{ // NOLINT
a_++;
std::printf("test");
},
(b_++, "other")),
EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(
stdout,
{ // NOLINT
a_++;
std::printf("test");
},
(b_++, "other")),
"Actual: test");
EXPECT_EQ(2, a_);
EXPECT_EQ(2, b_);
@ -417,16 +420,17 @@ TEST(OutputRedirectTest, ErrorInDtor) {
std::unique_ptr<OutputRedirect> redir(new OutputRedirect(f.get()));
// Put a character in a file buffer.
EXPECT_EQ('x', fputc('x', f.get()));
EXPECT_WRITE(stderr,
{
// The close function must be called inside EXPECT_WRITE,
// otherwise the system may recycle closed file descriptor when
// redirecting the output in EXPECT_STDERR and the second close
// will break output redirection.
FMT_POSIX(close(write_fd));
SUPPRESS_ASSERT(redir.reset(nullptr));
},
format_system_error(EBADF, "cannot flush stream"));
EXPECT_WRITE(
stderr,
{
// The close function must be called inside EXPECT_WRITE,
// otherwise the system may recycle closed file descriptor when
// redirecting the output in EXPECT_STDERR and the second close
// will break output redirection.
FMT_POSIX(close(write_fd));
SUPPRESS_ASSERT(redir.reset(nullptr));
},
format_system_error(EBADF, "cannot flush stream"));
write_copy.dup2(write_fd); // "undo" close or dtor of buffered_file will fail
}

View file

@ -57,7 +57,7 @@ std::string OutputRedirect::restore_and_read() {
if (read_end_.descriptor() == -1) return content; // Already read.
enum { BUFFER_SIZE = 4096 };
char buffer[BUFFER_SIZE];
std::size_t count = 0;
size_t count = 0;
do {
count = read_end_.read(buffer, BUFFER_SIZE);
content.append(buffer, count);
@ -66,9 +66,9 @@ std::string OutputRedirect::restore_and_read() {
return content;
}
std::string read(file& f, std::size_t count) {
std::string read(file& f, size_t count) {
std::string buffer(count, '\0');
std::size_t n = 0, offset = 0;
size_t n = 0, offset = 0;
do {
n = f.read(&buffer[offset], count - offset);
// We can't read more than size_t bytes since count has type size_t.

View file

@ -9,8 +9,9 @@
#define FMT_GTEST_EXTRA_H_
#include <string>
#include "gmock.h"
#include "fmt/os.h"
#include "gmock.h"
#define FMT_TEST_THROW_(statement, expected_exception, expected_message, fail) \
GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
@ -137,10 +138,11 @@ class SuppressAssert {
EXPECT_SYSTEM_ERROR(SUPPRESS_ASSERT(statement), error_code, message)
// Attempts to read count characters from a file.
std::string read(fmt::file& f, std::size_t count);
std::string read(fmt::file& f, size_t count);
# define EXPECT_READ(file, expected_content) \
EXPECT_EQ(expected_content, read(file, std::strlen(expected_content)))
EXPECT_EQ(expected_content, \
read(file, fmt::string_view(expected_content).size()))
#else
# define EXPECT_WRITE(file, statement, expected_output) SUCCEED()

View file

@ -6,9 +6,10 @@
// For the license information refer to format.h.
#include "fmt/locale.h"
#include "gmock.h"
using fmt::internal::max_value;
using fmt::detail::max_value;
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
template <typename Char> struct numpunct : std::numpunct<Char> {
@ -41,49 +42,68 @@ template <typename Char> struct small_grouping : std::numpunct<Char> {
TEST(LocaleTest, DoubleDecimalPoint) {
std::locale loc(std::locale(), new numpunct<char>());
EXPECT_EQ("1?23", fmt::format(loc, "{:n}", 1.23));
EXPECT_EQ("1?23", fmt::format(loc, "{:L}", 1.23));
}
TEST(LocaleTest, Format) {
std::locale loc(std::locale(), new numpunct<char>());
EXPECT_EQ("1234567", fmt::format(std::locale(), "{:n}", 1234567));
EXPECT_EQ("1~234~567", fmt::format(loc, "{:n}", 1234567));
EXPECT_EQ("1234567", fmt::format(std::locale(), "{:L}", 1234567));
EXPECT_EQ("1~234~567", fmt::format(loc, "{:L}", 1234567));
EXPECT_EQ("-1~234~567", fmt::format(loc, "{:L}", -1234567));
fmt::format_arg_store<fmt::format_context, int> as{1234567};
EXPECT_EQ("1~234~567", fmt::vformat(loc, "{:n}", fmt::format_args(as)));
EXPECT_EQ("1~234~567", fmt::vformat(loc, "{:L}", fmt::format_args(as)));
std::string s;
fmt::format_to(std::back_inserter(s), loc, "{:n}", 1234567);
fmt::format_to(std::back_inserter(s), loc, "{:L}", 1234567);
EXPECT_EQ("1~234~567", s);
std::locale no_grouping_loc(std::locale(), new no_grouping<char>());
EXPECT_EQ("1234567", fmt::format(no_grouping_loc, "{:n}", 1234567));
EXPECT_EQ("1234567", fmt::format(no_grouping_loc, "{:L}", 1234567));
std::locale special_grouping_loc(std::locale(), new special_grouping<char>());
EXPECT_EQ("1,23,45,678", fmt::format(special_grouping_loc, "{:n}", 12345678));
EXPECT_EQ("1,23,45,678", fmt::format(special_grouping_loc, "{:L}", 12345678));
EXPECT_EQ("12,345", fmt::format(special_grouping_loc, "{:L}", 12345));
std::locale small_grouping_loc(std::locale(), new small_grouping<char>());
EXPECT_EQ("4,2,9,4,9,6,7,2,9,5",
fmt::format(small_grouping_loc, "{:n}", max_value<uint32_t>()));
fmt::format(small_grouping_loc, "{:L}", max_value<uint32_t>()));
}
TEST(LocaleTest, FormatDetaultAlign) {
std::locale special_grouping_loc(std::locale(), new special_grouping<char>());
EXPECT_EQ(" 12,345", fmt::format(special_grouping_loc, "{:8L}", 12345));
}
TEST(LocaleTest, WFormat) {
std::locale loc(std::locale(), new numpunct<wchar_t>());
EXPECT_EQ(L"1234567", fmt::format(std::locale(), L"{:n}", 1234567));
EXPECT_EQ(L"1~234~567", fmt::format(loc, L"{:n}", 1234567));
EXPECT_EQ(L"1234567", fmt::format(std::locale(), L"{:L}", 1234567));
EXPECT_EQ(L"1~234~567", fmt::format(loc, L"{:L}", 1234567));
fmt::format_arg_store<fmt::wformat_context, int> as{1234567};
EXPECT_EQ(L"1~234~567", fmt::vformat(loc, L"{:n}", fmt::wformat_args(as)));
EXPECT_EQ(L"1234567", fmt::format(std::locale("C"), L"{:n}", 1234567));
EXPECT_EQ(L"1~234~567", fmt::vformat(loc, L"{:L}", fmt::wformat_args(as)));
EXPECT_EQ(L"1234567", fmt::format(std::locale("C"), L"{:L}", 1234567));
std::locale no_grouping_loc(std::locale(), new no_grouping<wchar_t>());
EXPECT_EQ(L"1234567", fmt::format(no_grouping_loc, L"{:n}", 1234567));
EXPECT_EQ(L"1234567", fmt::format(no_grouping_loc, L"{:L}", 1234567));
std::locale special_grouping_loc(std::locale(),
new special_grouping<wchar_t>());
EXPECT_EQ(L"1,23,45,678",
fmt::format(special_grouping_loc, L"{:n}", 12345678));
fmt::format(special_grouping_loc, L"{:L}", 12345678));
std::locale small_grouping_loc(std::locale(), new small_grouping<wchar_t>());
EXPECT_EQ(L"4,2,9,4,9,6,7,2,9,5",
fmt::format(small_grouping_loc, L"{:n}", max_value<uint32_t>()));
fmt::format(small_grouping_loc, L"{:L}", max_value<uint32_t>()));
}
TEST(LocaleTest, DoubleFormatter) {
auto loc = std::locale(std::locale(), new special_grouping<char>());
auto f = fmt::formatter<int>();
auto parse_ctx = fmt::format_parse_context("L");
f.parse(parse_ctx);
char buf[10] = {};
fmt::basic_format_context<char*, char> format_ctx(
buf, {}, fmt::detail::locale_ref(loc));
*f.format(12345, format_ctx) = 0;
EXPECT_STREQ("12,345", buf);
}
#endif // FMT_STATIC_THOUSANDS_SEPARATOR

View file

@ -16,8 +16,8 @@ template <typename T> class mock_allocator {
mock_allocator() {}
mock_allocator(const mock_allocator&) {}
typedef T value_type;
MOCK_METHOD1_T(allocate, T*(std::size_t n));
MOCK_METHOD2_T(deallocate, void(T* p, std::size_t n));
MOCK_METHOD1_T(allocate, T*(size_t n));
MOCK_METHOD2_T(deallocate, void(T* p, size_t n));
};
template <typename Allocator> class allocator_ref {
@ -51,10 +51,10 @@ template <typename Allocator> class allocator_ref {
public:
Allocator* get() const { return alloc_; }
value_type* allocate(std::size_t n) {
value_type* allocate(size_t n) {
return std::allocator_traits<Allocator>::allocate(*alloc_, n);
}
void deallocate(value_type* p, std::size_t n) { alloc_->deallocate(p, n); }
void deallocate(value_type* p, size_t n) { alloc_->deallocate(p, n); }
};
#endif // FMT_MOCK_ALLOCATOR_H_

View file

@ -5,11 +5,12 @@
//
// For the license information refer to format.h.
#include "fmt/os.h"
#include <cstdlib> // std::exit
#include <cstring>
#include <memory>
#include "fmt/os.h"
#include "gtest-extra.h"
#include "util.h"
@ -26,14 +27,14 @@ using fmt::error_code;
TEST(UtilTest, UTF16ToUTF8) {
std::string s = "ёжик";
fmt::internal::utf16_to_utf8 u(L"\x0451\x0436\x0438\x043A");
fmt::detail::utf16_to_utf8 u(L"\x0451\x0436\x0438\x043A");
EXPECT_EQ(s, u.str());
EXPECT_EQ(s.size(), u.size());
}
TEST(UtilTest, UTF16ToUTF8EmptyString) {
std::string s = "";
fmt::internal::utf16_to_utf8 u(L"");
fmt::detail::utf16_to_utf8 u(L"");
EXPECT_EQ(s, u.str());
EXPECT_EQ(s.size(), u.size());
}
@ -43,7 +44,7 @@ void check_utf_conversion_error(
const char* message,
fmt::basic_string_view<Char> str = fmt::basic_string_view<Char>(0, 1)) {
fmt::memory_buffer out;
fmt::internal::format_windows_error(out, ERROR_INVALID_PARAMETER, message);
fmt::detail::format_windows_error(out, ERROR_INVALID_PARAMETER, message);
fmt::system_error error(0, "");
try {
(Converter)(str);
@ -55,12 +56,12 @@ void check_utf_conversion_error(
}
TEST(UtilTest, UTF16ToUTF8Error) {
check_utf_conversion_error<fmt::internal::utf16_to_utf8, wchar_t>(
check_utf_conversion_error<fmt::detail::utf16_to_utf8, wchar_t>(
"cannot convert string from UTF-16 to UTF-8");
}
TEST(UtilTest, UTF16ToUTF8Convert) {
fmt::internal::utf16_to_utf8 u;
fmt::detail::utf16_to_utf8 u;
EXPECT_EQ(ERROR_INVALID_PARAMETER, u.convert(fmt::wstring_view(0, 1)));
EXPECT_EQ(ERROR_INVALID_PARAMETER,
u.convert(fmt::wstring_view(L"foo", INT_MAX + 1u)));
@ -73,17 +74,16 @@ TEST(UtilTest, FormatWindowsError) {
0, ERROR_FILE_EXISTS,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
reinterpret_cast<LPWSTR>(&message), 0, 0);
fmt::internal::utf16_to_utf8 utf8_message(message);
fmt::detail::utf16_to_utf8 utf8_message(message);
LocalFree(message);
fmt::memory_buffer actual_message;
fmt::internal::format_windows_error(actual_message, ERROR_FILE_EXISTS,
"test");
fmt::detail::format_windows_error(actual_message, ERROR_FILE_EXISTS, "test");
EXPECT_EQ(fmt::format("test: {}", utf8_message.str()),
fmt::to_string(actual_message));
actual_message.resize(0);
auto max_size = fmt::internal::max_value<size_t>();
fmt::internal::format_windows_error(actual_message, ERROR_FILE_EXISTS,
fmt::string_view(0, max_size));
auto max_size = fmt::detail::max_value<size_t>();
fmt::detail::format_windows_error(actual_message, ERROR_FILE_EXISTS,
fmt::string_view(0, max_size));
EXPECT_EQ(fmt::format("error {}", ERROR_FILE_EXISTS),
fmt::to_string(actual_message));
}
@ -103,11 +103,11 @@ TEST(UtilTest, FormatLongWindowsError) {
reinterpret_cast<LPWSTR>(&message), 0, 0) == 0) {
return;
}
fmt::internal::utf16_to_utf8 utf8_message(message);
fmt::detail::utf16_to_utf8 utf8_message(message);
LocalFree(message);
fmt::memory_buffer actual_message;
fmt::internal::format_windows_error(actual_message, provisioning_not_allowed,
"test");
fmt::detail::format_windows_error(actual_message, provisioning_not_allowed,
"test");
EXPECT_EQ(fmt::format("test: {}", utf8_message.str()),
fmt::to_string(actual_message));
}
@ -120,14 +120,14 @@ TEST(UtilTest, WindowsError) {
error = e;
}
fmt::memory_buffer message;
fmt::internal::format_windows_error(message, ERROR_FILE_EXISTS, "test error");
fmt::detail::format_windows_error(message, ERROR_FILE_EXISTS, "test error");
EXPECT_EQ(to_string(message), error.what());
EXPECT_EQ(ERROR_FILE_EXISTS, error.error_code());
}
TEST(UtilTest, ReportWindowsError) {
fmt::memory_buffer out;
fmt::internal::format_windows_error(out, ERROR_FILE_EXISTS, "test error");
fmt::detail::format_windows_error(out, ERROR_FILE_EXISTS, "test error");
out.push_back('\n');
EXPECT_WRITE(stderr,
fmt::report_windows_error(ERROR_FILE_EXISTS, "test error"),
@ -164,10 +164,10 @@ static file open_file() {
// Attempts to write a string to a file.
static void write(file& f, fmt::string_view s) {
std::size_t num_chars_left = s.size();
size_t num_chars_left = s.size();
const char* ptr = s.data();
do {
std::size_t count = f.write(ptr, num_chars_left);
size_t count = f.write(ptr, num_chars_left);
ptr += count;
// We can't write more than size_t bytes since num_chars_left
// has type size_t.
@ -238,16 +238,17 @@ TEST(BufferedFileTest, CloseFileInDtor) {
TEST(BufferedFileTest, CloseErrorInDtor) {
std::unique_ptr<buffered_file> f(new buffered_file(open_buffered_file()));
EXPECT_WRITE(stderr,
{
// The close function must be called inside EXPECT_WRITE,
// otherwise the system may recycle closed file descriptor when
// redirecting the output in EXPECT_STDERR and the second close
// will break output redirection.
FMT_POSIX(close(f->fileno()));
SUPPRESS_ASSERT(f.reset(nullptr));
},
format_system_error(EBADF, "cannot close file") + "\n");
EXPECT_WRITE(
stderr,
{
// The close function must be called inside EXPECT_WRITE,
// otherwise the system may recycle closed file descriptor when
// redirecting the output in EXPECT_STDERR and the second close
// will break output redirection.
FMT_POSIX(close(f->fileno()));
SUPPRESS_ASSERT(f.reset(nullptr));
},
format_system_error(EBADF, "cannot close file") + "\n");
}
TEST(BufferedFileTest, Close) {
@ -286,6 +287,26 @@ TEST(BufferedFileTest, Fileno) {
EXPECT_READ(copy, FILE_CONTENT);
}
TEST(DirectBufferedFileTest, Print) {
fmt::direct_buffered_file out(
"test-file", fmt::file::WRONLY | fmt::file::CREATE);
fmt::print(out, "The answer is {}.\n", 42);
out.close();
file in("test-file", file::RDONLY);
EXPECT_READ(in, "The answer is 42.\n");
}
TEST(DirectBufferedFileTest, BufferBoundary) {
auto str = std::string(4096, 'x');
fmt::direct_buffered_file out(
"test-file", fmt::file::WRONLY | fmt::file::CREATE);
fmt::print(out, "{}", str);
fmt::print(out, "{}", str);
out.close();
file in("test-file", file::RDONLY);
EXPECT_READ(in, str + str);
}
TEST(FileTest, DefaultCtor) {
file f;
EXPECT_EQ(-1, f.descriptor());
@ -369,16 +390,17 @@ TEST(FileTest, CloseFileInDtor) {
TEST(FileTest, CloseErrorInDtor) {
std::unique_ptr<file> f(new file(open_file()));
EXPECT_WRITE(stderr,
{
// The close function must be called inside EXPECT_WRITE,
// otherwise the system may recycle closed file descriptor when
// redirecting the output in EXPECT_STDERR and the second close
// will break output redirection.
FMT_POSIX(close(f->descriptor()));
SUPPRESS_ASSERT(f.reset(nullptr));
},
format_system_error(EBADF, "cannot close file") + "\n");
EXPECT_WRITE(
stderr,
{
// The close function must be called inside EXPECT_WRITE,
// otherwise the system may recycle closed file descriptor when
// redirecting the output in EXPECT_STDERR and the second close
// will break output redirection.
FMT_POSIX(close(f->descriptor()));
SUPPRESS_ASSERT(f.reset(nullptr));
},
format_system_error(EBADF, "cannot close file") + "\n");
}
TEST(FileTest, Close) {

View file

@ -21,9 +21,9 @@ template <> struct formatter<test> : formatter<int> {
};
} // namespace fmt
#include "fmt/ostream.h"
#include <sstream>
#include "fmt/ostream.h"
#include "gmock.h"
#include "gtest-extra.h"
#include "util.h"
@ -64,22 +64,23 @@ TEST(OStreamTest, Enum) {
EXPECT_EQ(L"0", fmt::format(L"{}", unstreamable_enum()));
}
using range = fmt::buffer_range<char>;
struct test_arg_formatter : fmt::arg_formatter<range> {
struct test_arg_formatter
: fmt::detail::arg_formatter<fmt::format_context::iterator, char> {
fmt::format_parse_context parse_ctx;
test_arg_formatter(fmt::format_context& ctx, fmt::format_specs& s)
: fmt::arg_formatter<range>(ctx, &parse_ctx, &s), parse_ctx("") {}
: fmt::detail::arg_formatter<fmt::format_context::iterator, char>(
ctx, &parse_ctx, &s),
parse_ctx("") {}
};
TEST(OStreamTest, CustomArg) {
fmt::memory_buffer buffer;
fmt::internal::buffer<char>& base = buffer;
fmt::detail::buffer<char>& base = buffer;
fmt::format_context ctx(std::back_inserter(base), fmt::format_args());
fmt::format_specs spec;
test_arg_formatter af(ctx, spec);
fmt::visit_format_arg(
af, fmt::internal::make_arg<fmt::format_context>(streamable_enum()));
af, fmt::detail::make_arg<fmt::format_context>(streamable_enum()));
EXPECT_EQ("streamable_enum", std::string(buffer.data(), buffer.size()));
}
@ -95,7 +96,7 @@ TEST(OStreamTest, Format) {
TEST(OStreamTest, FormatSpecs) {
EXPECT_EQ("def ", format("{0:<5}", TestString("def")));
EXPECT_EQ(" def", format("{0:>5}", TestString("def")));
#if FMT_NUMERIC_ALIGN
#if FMT_DEPRECATED_NUMERIC_ALIGN
EXPECT_THROW_MSG(format("{0:=5}", TestString("def")), format_error,
"format specifier requires numeric argument");
#endif
@ -140,18 +141,18 @@ TEST(OStreamTest, WriteToOStream) {
fmt::memory_buffer buffer;
const char* foo = "foo";
buffer.append(foo, foo + std::strlen(foo));
fmt::internal::write(os, buffer);
fmt::detail::write_buffer(os, buffer);
EXPECT_EQ("foo", os.str());
}
TEST(OStreamTest, WriteToOStreamMaxSize) {
std::size_t max_size = fmt::internal::max_value<std::size_t>();
std::streamsize max_streamsize = fmt::internal::max_value<std::streamsize>();
if (max_size <= fmt::internal::to_unsigned(max_streamsize)) return;
size_t max_size = fmt::detail::max_value<size_t>();
std::streamsize max_streamsize = fmt::detail::max_value<std::streamsize>();
if (max_size <= fmt::detail::to_unsigned(max_streamsize)) return;
struct test_buffer : fmt::internal::buffer<char> {
explicit test_buffer(std::size_t size) { resize(size); }
void grow(std::size_t) {}
struct test_buffer : fmt::detail::buffer<char> {
explicit test_buffer(size_t size) { resize(size); }
void grow(size_t) {}
} buffer(max_size);
struct mock_streambuf : std::streambuf {
@ -171,13 +172,13 @@ TEST(OStreamTest, WriteToOStreamMaxSize) {
typedef std::make_unsigned<std::streamsize>::type ustreamsize;
ustreamsize size = max_size;
do {
auto n = std::min(size, fmt::internal::to_unsigned(max_streamsize));
auto n = std::min(size, fmt::detail::to_unsigned(max_streamsize));
EXPECT_CALL(streambuf, xsputn(data, static_cast<std::streamsize>(n)))
.WillOnce(testing::Return(max_streamsize));
data += n;
size -= n;
} while (size != 0);
fmt::internal::write(os, buffer);
fmt::detail::write_buffer(os, buffer);
}
TEST(OStreamTest, Join) {
@ -258,7 +259,7 @@ TEST(OStreamTest, DisableBuiltinOStreamOperators) {
struct explicitly_convertible_to_string_like {
template <typename String,
typename = typename std::enable_if<std::is_constructible<
String, const char*, std::size_t>::value>::type>
String, const char*, size_t>::value>::type>
explicit operator String() const {
return String("foo", 3u);
}
@ -269,13 +270,13 @@ std::ostream& operator<<(std::ostream& os,
return os << "bar";
}
TEST(FormatterTest, FormatExplicitlyConvertibleToStringLike) {
TEST(OStreamTest, FormatExplicitlyConvertibleToStringLike) {
EXPECT_EQ("bar", fmt::format("{}", explicitly_convertible_to_string_like()));
}
#ifdef FMT_USE_STRING_VIEW
struct explicitly_convertible_to_std_string_view {
explicit operator fmt::internal::std_string_view<char>() const {
explicit operator fmt::detail::std_string_view<char>() const {
return {"foo", 3u};
}
};
@ -285,8 +286,24 @@ std::ostream& operator<<(std::ostream& os,
return os << "bar";
}
TEST(FormatterTest, FormatExplicitlyConvertibleToStdStringView) {
TEST(OStreamTest, FormatExplicitlyConvertibleToStdStringView) {
EXPECT_EQ("bar", fmt::format("{}", explicitly_convertible_to_string_like()));
}
#endif // FMT_USE_STRING_VIEW
struct copyfmt_test {};
std::ostream& operator<<(std::ostream& os, copyfmt_test) {
std::ios ios(nullptr);
ios.copyfmt(os);
return os << "foo";
}
TEST(OStreamTest, CopyFmt) {
EXPECT_EQ("foo", fmt::format("{}", copyfmt_test()));
}
TEST(OStreamTest, CompileTimeString) {
EXPECT_EQ("42", fmt::format(FMT_STRING("{}"), 42));
}

View file

@ -49,8 +49,8 @@ int pipe_count;
int fopen_count;
int fclose_count;
int fileno_count;
std::size_t read_nbyte;
std::size_t write_nbyte;
size_t read_nbyte;
size_t write_nbyte;
bool sysconf_error;
enum { NONE, MAX_SIZE, ERROR } fstat_sim;
@ -261,8 +261,8 @@ TEST(FileTest, Size) {
EXPECT_EQ(content.size(), static_cast<unsigned long long>(f.size()));
# ifdef _WIN32
fmt::memory_buffer message;
fmt::internal::format_windows_error(message, ERROR_ACCESS_DENIED,
"cannot get file size");
fmt::detail::format_windows_error(message, ERROR_ACCESS_DENIED,
"cannot get file size");
fstat_sim = ERROR;
EXPECT_THROW_MSG(f.size(), fmt::windows_error, fmt::to_string(message));
fstat_sim = NONE;
@ -288,7 +288,7 @@ TEST(FileTest, ReadRetry) {
write_end.write("test", SIZE);
write_end.close();
char buffer[SIZE];
std::size_t count = 0;
size_t count = 0;
EXPECT_RETRY(count = read_end.read(buffer, SIZE), read,
"cannot read from file");
EXPECT_EQ_POSIX(static_cast<std::streamsize>(SIZE), count);
@ -298,7 +298,7 @@ TEST(FileTest, WriteRetry) {
file read_end, write_end;
file::pipe(read_end, write_end);
enum { SIZE = 4 };
std::size_t count = 0;
size_t count = 0;
EXPECT_RETRY(count = write_end.write("test", SIZE), write,
"cannot write to file");
write_end.close();
@ -316,8 +316,8 @@ TEST(FileTest, ConvertReadCount) {
file read_end, write_end;
file::pipe(read_end, write_end);
char c;
std::size_t size = UINT_MAX;
if (sizeof(unsigned) != sizeof(std::size_t)) ++size;
size_t size = UINT_MAX;
if (sizeof(unsigned) != sizeof(size_t)) ++size;
read_count = 1;
read_nbyte = 0;
EXPECT_THROW(read_end.read(&c, size), fmt::system_error);
@ -329,8 +329,8 @@ TEST(FileTest, ConvertWriteCount) {
file read_end, write_end;
file::pipe(read_end, write_end);
char c;
std::size_t size = UINT_MAX;
if (sizeof(unsigned) != sizeof(std::size_t)) ++size;
size_t size = UINT_MAX;
if (sizeof(unsigned) != sizeof(size_t)) ++size;
write_count = 1;
write_nbyte = 0;
EXPECT_THROW(write_end.write(&c, size), fmt::system_error);

View file

@ -17,7 +17,7 @@
using fmt::format;
using fmt::format_error;
using fmt::internal::max_value;
using fmt::detail::max_value;
const unsigned BIG_NUM = INT_MAX + 1u;
@ -113,14 +113,13 @@ TEST(PrintfTest, SwitchArgIndexing) {
TEST(PrintfTest, InvalidArgIndex) {
EXPECT_THROW_MSG(test_sprintf("%0$d", 42), format_error,
"argument index out of range");
"argument not found");
EXPECT_THROW_MSG(test_sprintf("%2$d", 42), format_error,
"argument index out of range");
"argument not found");
EXPECT_THROW_MSG(test_sprintf(format("%{}$d", INT_MAX), 42), format_error,
"argument index out of range");
"argument not found");
EXPECT_THROW_MSG(test_sprintf("%2$", 42), format_error,
"argument index out of range");
EXPECT_THROW_MSG(test_sprintf("%2$", 42), format_error, "argument not found");
EXPECT_THROW_MSG(test_sprintf(format("%{}$d", BIG_NUM), 42), format_error,
"number is too big");
}
@ -140,8 +139,11 @@ TEST(PrintfTest, ZeroFlag) {
EXPECT_PRINTF("+00042", "%00+6d", 42);
EXPECT_PRINTF(" 42", "%05.d", 42);
EXPECT_PRINTF(" 0042", "%05.4d", 42);
// '0' flag is ignored for non-numeric types.
EXPECT_PRINTF("0000x", "%05c", 'x');
EXPECT_PRINTF(" x", "%05c", 'x');
}
TEST(PrintfTest, PlusFlag) {
@ -152,11 +154,38 @@ TEST(PrintfTest, PlusFlag) {
// '+' flag is ignored for non-numeric types.
EXPECT_PRINTF("x", "%+c", 'x');
// '+' flag wins over space flag
EXPECT_PRINTF("+42", "%+ d", 42);
EXPECT_PRINTF("-42", "%+ d", -42);
EXPECT_PRINTF("+42", "% +d", 42);
EXPECT_PRINTF("-42", "% +d", -42);
EXPECT_PRINTF("+0042", "% +05d", 42);
EXPECT_PRINTF("+0042", "%0+ 5d", 42);
// '+' flag and space flag are both ignored for non-numeric types.
EXPECT_PRINTF("x", "%+ c", 'x');
EXPECT_PRINTF("x", "% +c", 'x');
}
TEST(PrintfTest, MinusFlag) {
EXPECT_PRINTF("abc ", "%-5s", "abc");
EXPECT_PRINTF("abc ", "%0--5s", "abc");
EXPECT_PRINTF("7 ", "%-5d", 7);
EXPECT_PRINTF("97 ", "%-5hhi", 'a');
EXPECT_PRINTF("a ", "%-5c", 'a');
// '0' flag is ignored if '-' flag is given
EXPECT_PRINTF("7 ", "%-05d", 7);
EXPECT_PRINTF("7 ", "%0-5d", 7);
EXPECT_PRINTF("a ", "%-05c", 'a');
EXPECT_PRINTF("a ", "%0-5c", 'a');
EXPECT_PRINTF("97 ", "%-05hhi", 'a');
EXPECT_PRINTF("97 ", "%0-5hhi", 'a');
// '-' and space flag don't interfere
EXPECT_PRINTF(" 42", "%- d", 42);
}
TEST(PrintfTest, SpaceFlag) {
@ -222,8 +251,7 @@ TEST(PrintfTest, DynamicWidth) {
EXPECT_EQ("42 ", test_sprintf("%*d", -5, 42));
EXPECT_THROW_MSG(test_sprintf("%*d", 5.0, 42), format_error,
"width is not integer");
EXPECT_THROW_MSG(test_sprintf("%*d"), format_error,
"argument index out of range");
EXPECT_THROW_MSG(test_sprintf("%*d"), format_error, "argument not found");
EXPECT_THROW_MSG(test_sprintf("%*d", BIG_NUM, 42), format_error,
"number is too big");
}
@ -259,6 +287,11 @@ TEST(PrintfTest, FloatPrecision) {
EXPECT_PRINTF(buffer, "%.3a", 1234.5678);
}
TEST(PrintfTest, StringPrecision) {
char test[] = {'H', 'e', 'l', 'l', 'o'};
EXPECT_EQ(fmt::sprintf("%.4s", test), "Hell");
}
TEST(PrintfTest, IgnorePrecisionForNonNumericArg) {
EXPECT_PRINTF("abc", "%.5s", "abc");
}
@ -268,8 +301,7 @@ TEST(PrintfTest, DynamicPrecision) {
EXPECT_EQ("42", test_sprintf("%.*d", -5, 42));
EXPECT_THROW_MSG(test_sprintf("%.*d", 5.0, 42), format_error,
"precision is not integer");
EXPECT_THROW_MSG(test_sprintf("%.*d"), format_error,
"argument index out of range");
EXPECT_THROW_MSG(test_sprintf("%.*d"), format_error, "argument not found");
EXPECT_THROW_MSG(test_sprintf("%.*d", BIG_NUM, 42), format_error,
"number is too big");
if (sizeof(long long) != sizeof(int)) {
@ -298,7 +330,7 @@ void TestLength(const char* length_spec, U value) {
unsigned long long unsigned_value = 0;
// Apply integer promotion to the argument.
unsigned long long max = max_value<U>();
using fmt::internal::const_check;
using fmt::detail::const_check;
if (const_check(max <= static_cast<unsigned>(max_value<int>()))) {
signed_value = static_cast<int>(value);
unsigned_value = static_cast<unsigned long long>(value);
@ -367,7 +399,7 @@ TEST(PrintfTest, Length) {
TestLength<long long>("ll");
TestLength<unsigned long long>("ll");
TestLength<intmax_t>("j");
TestLength<std::size_t>("z");
TestLength<size_t>("z");
TestLength<std::ptrdiff_t>("t");
long double max = max_value<long double>();
EXPECT_PRINTF(fmt::format("{:.6}", max), "%g", max);
@ -447,6 +479,12 @@ TEST(PrintfTest, String) {
EXPECT_PRINTF(L" (null)", L"%10s", null_wstr);
}
TEST(PrintfTest, UCharString) {
unsigned char str[] = "test";
unsigned char* pstr = str;
EXPECT_EQ("test", fmt::sprintf("%s", pstr));
}
TEST(PrintfTest, Pointer) {
int n;
void* p = &n;
@ -502,9 +540,7 @@ TEST(PrintfTest, PrintfError) {
TEST(PrintfTest, WideString) { EXPECT_EQ(L"abc", fmt::sprintf(L"%s", L"abc")); }
TEST(PrintfTest, PrintfCustom) {
// The test is disabled for now because it requires decoupling
// fallback_formatter::format from format_context.
//EXPECT_EQ("abc", test_sprintf("%s", TestString("abc")));
EXPECT_EQ("abc", test_sprintf("%s", TestString("abc")));
}
TEST(PrintfTest, OStream) {
@ -571,51 +607,22 @@ TEST(PrintfTest, VSPrintfMakeWArgsExample) {
#endif
}
typedef fmt::printf_arg_formatter<fmt::buffer_range<char>> formatter_t;
typedef fmt::basic_printf_context<formatter_t::iterator, char> context_t;
TEST(PrintfTest, PrintfDetermineOutputSize) {
using backit = std::back_insert_iterator<std::vector<char>>;
using truncated_printf_context =
fmt::basic_printf_context<fmt::detail::truncating_iterator<backit>, char>;
// A custom printf argument formatter that doesn't print `-` for floating-point
// values rounded to 0.
class custom_printf_arg_formatter : public formatter_t {
public:
using formatter_t::iterator;
auto v = std::vector<char>{};
auto it = std::back_inserter(v);
custom_printf_arg_formatter(formatter_t::iterator iter,
formatter_t::format_specs& specs, context_t& ctx)
: formatter_t(iter, specs, ctx) {}
const auto format_string = "%s";
const auto format_arg = "Hello";
const auto expected_size = fmt::sprintf(format_string, format_arg).size();
using formatter_t::operator();
#if FMT_MSC_VER > 0 && FMT_MSC_VER <= 1804
template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
iterator operator()(T value){
#else
iterator operator()(double value) {
#endif
// Comparing a float to 0.0 is safe.
if (round(value * pow(10, specs()->precision)) == 0.0) value = 0;
return formatter_t::operator()(value);
}
}
;
typedef fmt::basic_format_args<context_t> format_args_t;
std::string custom_vformat(fmt::string_view format_str, format_args_t args) {
fmt::memory_buffer buffer;
fmt::vprintf<custom_printf_arg_formatter>(buffer, format_str, args);
return std::string(buffer.data(), buffer.size());
}
template <typename... Args>
std::string custom_format(const char* format_str, const Args&... args) {
auto va = fmt::make_printf_args(args...);
return custom_vformat(format_str, {va});
}
TEST(PrintfTest, CustomFormat) {
EXPECT_EQ("0.00", custom_format("%.2f", -.00001));
EXPECT_EQ("0.00", custom_format("%.2f", .00001));
EXPECT_EQ("1.00", custom_format("%.2f", 1.00001));
EXPECT_EQ("-1.00", custom_format("%.2f", -1.00001));
EXPECT_EQ((truncated_printf_context(
fmt::detail::truncating_iterator<backit>(it, 0), format_string,
fmt::make_format_args<truncated_printf_context>(format_arg))
.format()
.count()),
expected_size);
}

View file

@ -79,7 +79,7 @@ TEST(RangesTest, JoinInitializerList) {
struct my_struct {
int32_t i;
std::string str; // can throw
template <std::size_t N> decltype(auto) get() const noexcept {
template <size_t N> decltype(auto) get() const noexcept {
if constexpr (N == 0)
return i;
else if constexpr (N == 1)
@ -87,16 +87,15 @@ struct my_struct {
}
};
template <std::size_t N> decltype(auto) get(const my_struct& s) noexcept {
template <size_t N> decltype(auto) get(const my_struct& s) noexcept {
return s.get<N>();
}
namespace std {
template <>
struct tuple_size<my_struct> : std::integral_constant<std::size_t, 2> {};
template <> struct tuple_size<my_struct> : std::integral_constant<size_t, 2> {};
template <std::size_t N> struct tuple_element<N, my_struct> {
template <size_t N> struct tuple_element<N, my_struct> {
using type = decltype(std::declval<my_struct>().get<N>());
};
@ -140,3 +139,17 @@ TEST(RangesTest, FormatStringLike) {
EXPECT_EQ("foo", fmt::format("{}", string_like()));
}
#endif // FMT_USE_STRING_VIEW
struct zstring_sentinel {};
bool operator==(const char* p, zstring_sentinel) { return *p == '\0'; }
bool operator!=(const char* p, zstring_sentinel) { return *p != '\0'; }
struct zstring {
const char* p;
const char* begin() const { return p; }
zstring_sentinel end() const { return {}; }
};
TEST(RangesTest, JoinSentinel) {
zstring hello{"hello"};
EXPECT_EQ("{'h', 'e', 'l', 'l', 'o'}", fmt::format("{}", hello));
EXPECT_EQ("h_e_l_l_o", fmt::format("{}", fmt::join(hello, "_")));
}

View file

@ -5,12 +5,14 @@
//
// For the license information refer to format.h.
#include "scan.h"
#include <time.h>
#include <climits>
#include "gmock.h"
#include "gtest-extra.h"
#include "scan.h"
TEST(ScanTest, ReadText) {
fmt::string_view s = "foo";
@ -73,7 +75,7 @@ template <> struct scanner<tm> {
if (it != ctx.end() && *it == ':') ++it;
auto end = it;
while (end != ctx.end() && *end != '}') ++end;
format.reserve(internal::to_unsigned(end - it + 1));
format.reserve(detail::to_unsigned(end - it + 1));
format.append(it, end);
format.push_back('\0');
return end;

View file

@ -31,7 +31,7 @@ class scan_parse_context {
FMT_CONSTEXPR iterator end() const { return format_.end(); }
void advance_to(iterator it) {
format_.remove_prefix(internal::to_unsigned(it - begin()));
format_.remove_prefix(detail::to_unsigned(it - begin()));
}
};
@ -48,11 +48,11 @@ struct scan_context {
iterator end() const { return begin() + input_.size(); }
void advance_to(iterator it) {
input_.remove_prefix(internal::to_unsigned(it - begin()));
input_.remove_prefix(detail::to_unsigned(it - begin()));
}
};
namespace internal {
namespace detail {
enum class scan_type {
none_type,
int_type,
@ -107,20 +107,20 @@ class scan_arg {
ctx.advance_to(s.scan(*static_cast<T*>(arg), ctx));
}
};
} // namespace internal
} // namespace detail
struct scan_args {
int size;
const internal::scan_arg* data;
const detail::scan_arg* data;
template <size_t N>
scan_args(const std::array<internal::scan_arg, N>& store)
scan_args(const std::array<detail::scan_arg, N>& store)
: size(N), data(store.data()) {
static_assert(N < INT_MAX, "too many arguments");
}
};
namespace internal {
namespace detail {
struct scan_handler : error_handler {
private:
@ -169,14 +169,15 @@ struct scan_handler : error_handler {
scan_ctx_.advance_to(it + size);
}
void on_arg_id() { on_arg_id(next_arg_id_++); }
void on_arg_id(int id) {
int on_arg_id() { return on_arg_id(next_arg_id_++); }
int on_arg_id(int id) {
if (id >= args_.size) on_error("argument index out of range");
arg_ = args_.data[id];
return id;
}
void on_arg_id(string_view) { on_error("invalid format"); }
int on_arg_id(string_view) { return on_error("invalid format"), 0; }
void on_replacement_field(const char*) {
void on_replacement_field(int, const char*) {
auto it = scan_ctx_.begin(), end = scan_ctx_.end();
switch (arg_.type) {
case scan_type::int_type:
@ -208,24 +209,24 @@ struct scan_handler : error_handler {
}
}
const char* on_format_specs(const char* begin, const char*) {
const char* on_format_specs(int, const char* begin, const char*) {
if (arg_.type != scan_type::custom_type) return begin;
parse_ctx_.advance_to(begin);
arg_.custom.scan(arg_.custom.value, parse_ctx_, scan_ctx_);
return parse_ctx_.begin();
}
};
} // namespace internal
} // namespace detail
template <typename... Args>
std::array<internal::scan_arg, sizeof...(Args)> make_scan_args(Args&... args) {
std::array<detail::scan_arg, sizeof...(Args)> make_scan_args(Args&... args) {
return {{args...}};
}
string_view::iterator vscan(string_view input, string_view format_str,
scan_args args) {
internal::scan_handler h(format_str, input, args);
internal::parse_format_string<false>(format_str, h);
detail::scan_handler h(format_str, input, args);
detail::parse_format_string<false>(format_str, h);
return input.begin() + (h.pos() - &*input.begin());
}

View file

@ -1,4 +1,5 @@
#include <format>
#include "gtest.h"
TEST(StdFormatTest, Escaping) {
@ -61,7 +62,7 @@ TEST(StdFormatTest, Int) {
string s0 = format("{}", 42); // s0 == "42"
string s1 = format("{0:b} {0:d} {0:o} {0:x}", 42); // s1 == "101010 42 52 2a"
string s2 = format("{0:#x} {0:#X}", 42); // s2 == "0x2a 0X2A"
string s3 = format("{:n}", 1234); // s3 == "1234" (depends on the locale)
string s3 = format("{:L}", 1234); // s3 == "1234" (depends on the locale)
EXPECT_EQ(s0, "42");
EXPECT_EQ(s1, "101010 42 52 2a");
EXPECT_EQ(s2, "0x2a 0X2A");
@ -123,7 +124,7 @@ template <> struct std::formatter<S> {
if constexpr (!is_integral_v<type> || is_same_v<type, bool>)
throw format_error("width is not integral");
// else if (value < 0 || value > numeric_limits<int>::max())
else if (fmt::internal::is_negative(value) ||
else if (fmt::detail::is_negative(value) ||
value > numeric_limits<int>::max())
throw format_error("invalid width");
else

View file

@ -9,6 +9,7 @@
#define FMT_TEST_ASSERT_H_
#include <stdexcept>
#include "gtest.h"
class assertion_failure : public std::logic_error {

View file

@ -6,6 +6,7 @@
// For the license information refer to format.h.
#include <cstdlib>
#include "gtest.h"
#ifdef _WIN32

View file

@ -6,6 +6,7 @@
// For the license information refer to format.h.
#include "util.h"
#include <cstring>
void increment(char* s) {

View file

@ -19,7 +19,7 @@ enum { BUFFER_SIZE = 256 };
# define FMT_VSNPRINTF vsnprintf
#endif
template <std::size_t SIZE>
template <size_t SIZE>
void safe_sprintf(char (&buffer)[SIZE], const char* format, ...) {
std::va_list args;
va_start(args, format);