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| 1 | //===----------------------------------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef _LIBCPP___TYPE_TRAITS_RESULT_OF_H |
| 10 | #define _LIBCPP___TYPE_TRAITS_RESULT_OF_H |
| 11 | |
| 12 | #include <__config> |
| 13 | #include <__type_traits/invoke.h> |
| 14 | |
| 15 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 16 | # pragma GCC system_header |
| 17 | #endif |
| 18 | |
| 19 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 20 | |
| 21 | // result_of |
| 22 | |
| 23 | #if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_TYPE_TRAITS) |
| 24 | template <class _Callable> |
| 25 | struct _LIBCPP_DEPRECATED_IN_CXX17 _LIBCPP_NO_SPECIALIZATIONS result_of; |
| 26 | |
| 27 | _LIBCPP_DIAGNOSTIC_PUSH |
| 28 | #if __has_warning("-Winvalid-specialization") |
| 29 | _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Winvalid-specialization") |
| 30 | #endif |
| 31 | template <class _Fp, class... _Args> |
| 32 | struct result_of<_Fp(_Args...)> : __invoke_result<_Fp, _Args...> {}; |
| 33 | _LIBCPP_DIAGNOSTIC_POP |
| 34 | |
| 35 | # if _LIBCPP_STD_VER >= 14 |
| 36 | template <class _Tp> |
| 37 | using result_of_t _LIBCPP_DEPRECATED_IN_CXX17 = typename result_of<_Tp>::type; |
| 38 | # endif // _LIBCPP_STD_VER >= 14 |
| 39 | #endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_TYPE_TRAITS) |
| 40 | |
| 41 | _LIBCPP_END_NAMESPACE_STD |
| 42 | |
| 43 | #endif // _LIBCPP___TYPE_TRAITS_RESULT_OF_H |
| 44 |
Warning: This file is not a C or C++ file. It does not have highlighting.