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dynarmic/include/Zycore/Bitset.h
Alexandre Bouvier cd2ede593a Squashed 'externals/zycore/' changes from 0c372cde..1401fb85 
1401fb85 Fix `a label can only be part of a statement` warning (#61)
5f650a18 CMake: Enable `CMAKE_MSVC_RUNTIME_LIBRARY` (MSVC)
6c958cfe Fix no-libc build on "other" platforms (#58)
59819206 Bump version to v1.4.0
4bc563f6 Fix build-system to better work with vcpkg (#56)
4a8b5e2a CMake: rename target `doc` -> `ZycoreDoc`
a754e112 Bump version to 1.3.0
3e95307d Add support for ppc(64) and riscv64 (#52)
8f39333a build: only enable CXX if needed
7bd75696 build: add doc target
7c33e13e Fix `ZYAN_TRUE`/`ZYAN_FALSE` signedness
a0feec7f Fix warning `C4668`
bdbd3ff4 Bump version to v1.2
60b6ef1c Fix for dynamic libraries too
310f362c Adding ARCHIVE DESTINATION to fix CMake error
b01063b8 Improved logic for enabling LTO
c58d7fb5 Don't enable C11 for MSVC
ee784564 Switch minimum C standard supported to C11
5c341bf1 Implement an initial set of cross-compiler atomic operations
b4949ccc Minor fixes
9a305f6a Add CI workflow
dd2211a0 Get rid of CMake export headers
f0fb3f78 Fix `ZYAN_VECTOR_FOREACH_MUTABLE` macro
3f263290 format: handle encoding on wasm
95d7fb6c format: handle hex encoding on wasm
0d37fc54 defines: add wasm/wasi detection
8983325b build: use -pthread when possible
3de49d41 build: use system GTest when available
8d46cb58 test: make tests runnable with ctest
636bb299 Remove `float`s from the project (kernel mode compatibility) (#36)
e2b37b10 Assert to ensure sane growth factors
94185407 Added limits for integer types
767719d9 build(cmake): export and install zyan_* functions (#33)
6c93d9a3 build(cmake): add version and soversion to the library
fc2798d4 build(cmake): fix PUBLIC include dir of installed lib
22ce9c2d Add `ZYAN_FORCE_ASSERTS` CMake option
9a301424 Remove disabling source files in no-libc mode in CMake
3be54fca Thread.c: add missing SDK prototypes for old versions of Windows
d7fc85fd Exclude API/Memory.c and API/Process.c from compilation in no-libc mode
8da0001a Add back #ifdef guards to "API" headers/sources for no-libc mode
f6a48866 Fix cmake config files (#27)
4f3746fa Merge pull request #26 from Tsn0w/master
a9bb54ad Replace fallthrough attribute to __fallthrough__
99a74acb Add `ZYDIS_NOINLINE` macro

git-subtree-dir: externals/zycore
git-subtree-split: 1401fb85ac313f6605ec795c52bf99ea3f292a69
2022-11-20 21:49:18 +01:00

483 lines
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/***************************************************************************************************
Zyan Core Library (Zycore-C)
Original Author : Florian Bernd
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
***************************************************************************************************/
/**
* @file
* Implements the bitset class.
*/
#ifndef ZYCORE_BITSET_H
#define ZYCORE_BITSET_H
#include <Zycore/Allocator.h>
#include <Zycore/Status.h>
#include <Zycore/Types.h>
#include <Zycore/Vector.h>
#ifdef __cplusplus
extern "C" {
#endif
/* ============================================================================================== */
/* Enums and types */
/* ============================================================================================== */
/**
* Defines the `ZyanVector` struct.
*
* All fields in this struct should be considered as "private". Any changes may lead to unexpected
* behavior.
*/
typedef struct ZyanBitset_
{
/**
* The bitset size.
*/
ZyanUSize size;
/**
* The bitset data.
*/
ZyanVector bits;
} ZyanBitset;
/**
* Defines the `ZyanBitsetByteOperation` function prototype.
*
* @param v1 A pointer to the first byte. This value receives the result after performing the
* desired operation.
* @param v2 A pointer to the second byte.
*
* @return A zyan status code.
*
* This function is used to perform byte-wise operations on two `ZyanBitset` instances.
*/
typedef ZyanStatus (*ZyanBitsetByteOperation)(ZyanU8* v1, const ZyanU8* v2);
/* ============================================================================================== */
/* Exported functions */
/* ============================================================================================== */
/* ---------------------------------------------------------------------------------------------- */
/* Constructor and destructor */
/* ---------------------------------------------------------------------------------------------- */
#ifndef ZYAN_NO_LIBC
/**
* Initializes the given `ZyanBitset` instance.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param count The initial amount of bits.
*
* @return A zyan status code.
*
* The space for the bitset is dynamically allocated by the default allocator using the default
* growth factor and the default shrink threshold.
*/
ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanBitsetInit(ZyanBitset* bitset, ZyanUSize count);
#endif // ZYAN_NO_LIBC
/**
* Initializes the given `ZyanBitset` instance and sets a custom `allocator` and memory
* allocation/deallocation parameters.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param count The initial amount of bits.
* @param allocator A pointer to a `ZyanAllocator` instance.
* @param growth_factor The growth factor.
* @param shrink_threshold The shrink threshold.
*
* @return A zyan status code.
*
* A growth factor of `1` disables overallocation and a shrink threshold of `0` disables
* dynamic shrinking.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetInitEx(ZyanBitset* bitset, ZyanUSize count,
ZyanAllocator* allocator, ZyanU8 growth_factor, ZyanU8 shrink_threshold);
/**
* Initializes the given `ZyanBitset` instance and configures it to use a custom user
* defined buffer with a fixed size.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param count The initial amount of bits.
* @param buffer A pointer to the buffer that is used as storage for the bits.
* @param capacity The maximum capacity (number of bytes) of the buffer.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetInitBuffer(ZyanBitset* bitset, ZyanUSize count, void* buffer,
ZyanUSize capacity);
/**
* Destroys the given `ZyanBitset` instance.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetDestroy(ZyanBitset* bitset);
/* ---------------------------------------------------------------------------------------------- */
/* Logical operations */
/* ---------------------------------------------------------------------------------------------- */
/**
* Performs a byte-wise `operation` for every byte in the given `ZyanBitset` instances.
*
* @param destination A pointer to the `ZyanBitset` instance that is used as the first input and
* as the destination.
* @param source A pointer to the `ZyanBitset` instance that is used as the second input.
* @param operation A pointer to the function that performs the desired operation.
*
* @return A zyan status code.
*
* The `operation` callback is invoked once for every byte in the smallest of the `ZyanBitset`
* instances.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetPerformByteOperation(ZyanBitset* destination,
const ZyanBitset* source, ZyanBitsetByteOperation operation);
/**
* Performs a logical `AND` operation on the given `ZyanBitset` instances.
*
* @param destination A pointer to the `ZyanBitset` instance that is used as the first input and
* as the destination.
* @param source A pointer to the `ZyanBitset` instance that is used as the second input.
*
* @return A zyan status code.
*
* If the destination bitmask contains more bits than the source one, the state of the remaining
* bits will be undefined.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetAND(ZyanBitset* destination, const ZyanBitset* source);
/**
* Performs a logical `OR` operation on the given `ZyanBitset` instances.
*
* @param destination A pointer to the `ZyanBitset` instance that is used as the first input and
* as the destination.
* @param source A pointer to the `ZyanBitset` instance that is used as the second input.
*
* @return A zyan status code.
*
* If the destination bitmask contains more bits than the source one, the state of the remaining
* bits will be undefined.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetOR (ZyanBitset* destination, const ZyanBitset* source);
/**
* Performs a logical `XOR` operation on the given `ZyanBitset` instances.
*
* @param destination A pointer to the `ZyanBitset` instance that is used as the first input and
* as the destination.
* @param source A pointer to the `ZyanBitset` instance that is used as the second input.
*
* @return A zyan status code.
*
* If the destination bitmask contains more bits than the source one, the state of the remaining
* bits will be undefined.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetXOR(ZyanBitset* destination, const ZyanBitset* source);
/**
* Flips all bits of the given `ZyanBitset` instance.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetFlip(ZyanBitset* bitset);
/* ---------------------------------------------------------------------------------------------- */
/* Bit access */
/* ---------------------------------------------------------------------------------------------- */
/**
* Sets the bit at `index` of the given `ZyanBitset` instance to `1`.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param index The bit index.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetSet(ZyanBitset* bitset, ZyanUSize index);
/**
* Sets the bit at `index` of the given `ZyanBitset` instance to `0`.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param index The bit index.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetReset(ZyanBitset* bitset, ZyanUSize index);
/**
* Sets the bit at `index` of the given `ZyanBitset` instance to the specified `value`.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param index The bit index.
* @param value The new value.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetAssign(ZyanBitset* bitset, ZyanUSize index, ZyanBool value);
/**
* Toggles the bit at `index` of the given `ZyanBitset` instance.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param index The bit index.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetToggle(ZyanBitset* bitset, ZyanUSize index);
/**
* Returns the value of the bit at `index`.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param index The bit index.
*
* @return `ZYAN_STATUS_TRUE`, if the bit is set or `ZYAN_STATUS_FALSE`, if not, Another zyan
* status code, if an error occurred.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetTest(ZyanBitset* bitset, ZyanUSize index);
/**
* Returns the value of the most significant bit.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return `ZYAN_STATUS_TRUE`, if the bit is set or `ZYAN_STATUS_FALSE`, if not. Another zyan
* status code, if an error occurred.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetTestMSB(ZyanBitset* bitset);
/**
* Returns the value of the least significant bit.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return `ZYAN_STATUS_TRUE`, if the bit is set or `ZYAN_STATUS_FALSE`, if not. Another zyan
* status code, if an error occurred.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetTestLSB(ZyanBitset* bitset);
/* ---------------------------------------------------------------------------------------------- */
/**
* Sets all bits of the given `ZyanBitset` instance to `1`.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetSetAll(ZyanBitset* bitset);
/**
* Sets all bits of the given `ZyanBitset` instance to `0`.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetResetAll(ZyanBitset* bitset);
/* ---------------------------------------------------------------------------------------------- */
/* Size management */
/* ---------------------------------------------------------------------------------------------- */
/**
* Adds a new bit at the end of the bitset.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param value The value of the new bit.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetPush(ZyanBitset* bitset, ZyanBool value);
/**
* Removes the last bit of the bitset.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetPop(ZyanBitset* bitset);
/**
* Deletes all bits of the given `ZyanBitset` instance.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetClear(ZyanBitset* bitset);
/* ---------------------------------------------------------------------------------------------- */
/* Memory management */
/* ---------------------------------------------------------------------------------------------- */
/**
* Changes the capacity of the given `ZyanBitset` instance.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param count The new capacity (number of bits).
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetReserve(ZyanBitset* bitset, ZyanUSize count);
/**
* Shrinks the capacity of the given bitset to match it's size.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetShrinkToFit(ZyanBitset* bitset);
/* ---------------------------------------------------------------------------------------------- */
/* Information */
/* ---------------------------------------------------------------------------------------------- */
/**
* Returns the current size of the bitset in bits.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param size Receives the size of the bitset in bits.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetGetSize(const ZyanBitset* bitset, ZyanUSize* size);
/**
* Returns the current capacity of the bitset in bits.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param capacity Receives the size of the bitset in bits.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetGetCapacity(const ZyanBitset* bitset, ZyanUSize* capacity);
/**
* Returns the current size of the bitset in bytes.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param size Receives the size of the bitset in bytes.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetGetSizeBytes(const ZyanBitset* bitset, ZyanUSize* size);
/**
* Returns the current capacity of the bitset in bytes.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param capacity Receives the size of the bitset in bytes.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetGetCapacityBytes(const ZyanBitset* bitset, ZyanUSize* capacity);
/* ---------------------------------------------------------------------------------------------- */
/**
* Returns the amount of bits set in the given bitset.
*
* @param bitset A pointer to the `ZyanBitset` instance.
* @param count Receives the amount of bits set in the given bitset.
*
* @return A zyan status code.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetCount(const ZyanBitset* bitset, ZyanUSize* count);
/**
* Checks, if all bits of the given bitset are set.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return `ZYAN_STATUS_TRUE`, if all bits are set, `ZYAN_STATUS_FALSE`, if not. Another zyan
* status code, if an error occurred.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetAll(const ZyanBitset* bitset);
/**
* Checks, if at least one bit of the given bitset is set.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return `ZYAN_STATUS_TRUE`, if at least one bit is set, `ZYAN_STATUS_FALSE`, if not. Another
* zyan status code, if an error occurred.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetAny(const ZyanBitset* bitset);
/**
* Checks, if none bits of the given bitset are set.
*
* @param bitset A pointer to the `ZyanBitset` instance.
*
* @return `ZYAN_STATUS_TRUE`, if none bits are set, `ZYAN_STATUS_FALSE`, if not. Another zyan
* status code, if an error occurred.
*/
ZYCORE_EXPORT ZyanStatus ZyanBitsetNone(const ZyanBitset* bitset);
///* ---------------------------------------------------------------------------------------------- */
//
///**
// * Returns a 32-bit unsigned integer representation of the data.
// *
// * @param bitset A pointer to the `ZyanBitset` instance.
// * @param value Receives the 32-bit unsigned integer representation of the data.
// *
// * @return A zyan status code.
// */
//ZYCORE_EXPORT ZyanStatus ZyanBitsetToU32(const ZyanBitset* bitset, ZyanU32* value);
//
///**
// * Returns a 64-bit unsigned integer representation of the data.
// *
// * @param bitset A pointer to the `ZyanBitset` instance.
// * @param value Receives the 64-bit unsigned integer representation of the data.
// *
// * @return A zyan status code.
// */
//ZYCORE_EXPORT ZyanStatus ZyanBitsetToU64(const ZyanBitset* bitset, ZyanU64* value);
/* ---------------------------------------------------------------------------------------------- */
/* ============================================================================================== */
#ifdef __cplusplus
}
#endif
#endif /* ZYCORE_BITSET_H */
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