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Squashed 'externals/mp/' changes from 649fde1e..b50053ce

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b50053ce function_info: Implement equivalent_function_type_with_class

git-subtree-dir: externals/mp
git-subtree-split: b50053cef50385419c59fb3aebb78974547318bc
This commit is contained in:
Merry 2021-08-10 12:30:46 +01:00
parent 1925d4dcc6
commit 163b59390c
2 changed files with 8 additions and 0 deletions
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1
README.md
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@ -103,6 +103,7 @@ Type traits not in the standard library.
* `mp::parameter_list`: Get a typelist of the parameter types
* `mp::get_parameter`: Get the type of a parameter by index
* `mp::equivalent_function_type`: Get an equivalent function type (for MFPs this does not include the class)
* `mp::equivalent_function_type_with_class`: Get an equivalent function type with explicit `this` argument (MFPs only)
* `mp::return_type`: Return type of the function
* `mp::class_type`: Only valid for member function pointer types. Gets the class the member function is associated with.

7
include/mp/traits/function_info.h
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@ -36,11 +36,15 @@ struct function_info<R(*)(As...)> : function_info<R(As...)> {};
template<class C, class R, class... As>
struct function_info<R(C::*)(As...)> : function_info<R(As...)> {
using class_type = C;
using equivalent_function_type_with_class = R(C*, As...);
};
template<class C, class R, class... As>
struct function_info<R(C::*)(As...) const> : function_info<R(As...)> {
using class_type = C;
using equivalent_function_type_with_class = R(C*, As...);
};
template<class F>
@ -55,6 +59,9 @@ using get_parameter = typename function_info<F>::template parameter<I>::type;
template<class F>
using equivalent_function_type = typename function_info<F>::equivalent_function_type;
template<class F>
using equivalent_function_type_with_class = typename function_info<F>::equivalent_function_type_with_class;
template<class F>
using return_type = typename function_info<F>::return_type;