diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__functional/not_fn.h')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/__functional/not_fn.h | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/contrib/llvm-project/libcxx/include/__functional/not_fn.h b/contrib/llvm-project/libcxx/include/__functional/not_fn.h index bbd1a8bc35af..23a491c135d7 100644 --- a/contrib/llvm-project/libcxx/include/__functional/not_fn.h +++ b/contrib/llvm-project/libcxx/include/__functional/not_fn.h @@ -28,26 +28,23 @@ _LIBCPP_BEGIN_NAMESPACE_STD #if _LIBCPP_STD_VER >= 17 struct __not_fn_op { - template <class... _Args> - _LIBCPP_HIDE_FROM_ABI - _LIBCPP_CONSTEXPR_SINCE_CXX20 auto operator()(_Args&&... __args) const - noexcept(noexcept(!std::invoke(std::forward<_Args>(__args)...))) - -> decltype( !std::invoke(std::forward<_Args>(__args)...)) - { return !std::invoke(std::forward<_Args>(__args)...); } + template <class... _Args> + _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 auto operator()(_Args&&... __args) const + noexcept(noexcept(!std::invoke(std::forward<_Args>(__args)...))) + -> decltype(!std::invoke(std::forward<_Args>(__args)...)) { + return !std::invoke(std::forward<_Args>(__args)...); + } }; template <class _Fn> struct __not_fn_t : __perfect_forward<__not_fn_op, _Fn> { - using __perfect_forward<__not_fn_op, _Fn>::__perfect_forward; + using __perfect_forward<__not_fn_op, _Fn>::__perfect_forward; }; -template <class _Fn, class = enable_if_t< - is_constructible_v<decay_t<_Fn>, _Fn> && - is_move_constructible_v<decay_t<_Fn>> ->> -_LIBCPP_HIDE_FROM_ABI -_LIBCPP_CONSTEXPR_SINCE_CXX20 auto not_fn(_Fn&& __f) { - return __not_fn_t<decay_t<_Fn>>(std::forward<_Fn>(__f)); +template <class _Fn, + class = enable_if_t< is_constructible_v<decay_t<_Fn>, _Fn> && is_move_constructible_v<decay_t<_Fn>> >> +_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 auto not_fn(_Fn&& __f) { + return __not_fn_t<decay_t<_Fn>>(std::forward<_Fn>(__f)); } #endif // _LIBCPP_STD_VER >= 17 |