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Release Cosmopolitan v3.6.0
This release is an atomic upgrade to GCC 14.1.0 with C23 and C++23
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1585 changed files with 117353 additions and 271644 deletions
20
third_party/libcxx/__functional/identity.h
vendored
20
third_party/libcxx/__functional/identity.h
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@ -11,6 +11,7 @@
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#define _LIBCPP___FUNCTIONAL_IDENTITY_H
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#include <__config>
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#include <__fwd/functional.h>
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#include <__type_traits/integral_constant.h>
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#include <__utility/forward.h>
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@ -34,21 +35,28 @@ struct __identity {
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template <>
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struct __is_identity<__identity> : true_type {};
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template <>
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struct __is_identity<reference_wrapper<__identity> > : true_type {};
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template <>
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struct __is_identity<reference_wrapper<const __identity> > : true_type {};
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#if _LIBCPP_STD_VER >= 20
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struct identity {
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template<class _Tp>
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_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr _Tp&& operator()(_Tp&& __t) const noexcept
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{
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return _VSTD::forward<_Tp>(__t);
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}
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template <class _Tp>
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[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr _Tp&& operator()(_Tp&& __t) const noexcept {
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return std::forward<_Tp>(__t);
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}
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using is_transparent = void;
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using is_transparent = void;
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};
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template <>
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struct __is_identity<identity> : true_type {};
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template <>
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struct __is_identity<reference_wrapper<identity> > : true_type {};
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template <>
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struct __is_identity<reference_wrapper<const identity> > : true_type {};
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#endif // _LIBCPP_STD_VER >= 20
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