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author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | 2022-04-14 01:08:04 +0000 |
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committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | 2022-04-14 01:08:04 +0000 |
commit | 924bd5e397341029a8e680b0865b414109251528 (patch) | |
tree | 2ce94d7f0804ccb77d1fa9b2a1bca00eecdff1e2 /third_party/abseil-cpp/absl/meta/type_traits.h | |
parent | 6ce7cd2e9d37e544ae827b91153fadda15d355e7 (diff) | |
parent | 7563023510bf04108a954596ea9393a4c11ac279 (diff) | |
download | webrtc-android13-tests-release.tar.gz |
Snap for 8451755 from 7563023510bf04108a954596ea9393a4c11ac279 to tm-releaseandroid-vts-13.0_r8android-vts-13.0_r7android-vts-13.0_r6android-vts-13.0_r5android-vts-13.0_r4android-vts-13.0_r3android-vts-13.0_r2android-vts-13.0_r1android-security-13.0.0_r9android-security-13.0.0_r8android-security-13.0.0_r7android-security-13.0.0_r6android-security-13.0.0_r5android-security-13.0.0_r4android-security-13.0.0_r3android-security-13.0.0_r2android-security-13.0.0_r17android-security-13.0.0_r16android-security-13.0.0_r15android-security-13.0.0_r14android-security-13.0.0_r13android-security-13.0.0_r12android-security-13.0.0_r11android-security-13.0.0_r10android-security-13.0.0_r1android-platform-13.0.0_r2android-platform-13.0.0_r1android-cts-13.0_r8android-cts-13.0_r7android-cts-13.0_r6android-cts-13.0_r5android-cts-13.0_r4android-cts-13.0_r3android-cts-13.0_r2android-cts-13.0_r1android-13.0.0_r8android-13.0.0_r7android-13.0.0_r6android-13.0.0_r5android-13.0.0_r4android-13.0.0_r31android-13.0.0_r3android-13.0.0_r2android-13.0.0_r12android-13.0.0_r1android13-tests-releaseandroid13-security-releaseandroid13-s3-releaseandroid13-s2-releaseandroid13-s1-releaseandroid13-release
Change-Id: Ie91f8b8b9ff715203282c2c4b2072b0f702d0631
Diffstat (limited to 'third_party/abseil-cpp/absl/meta/type_traits.h')
-rw-r--r-- | third_party/abseil-cpp/absl/meta/type_traits.h | 60 |
1 files changed, 49 insertions, 11 deletions
diff --git a/third_party/abseil-cpp/absl/meta/type_traits.h b/third_party/abseil-cpp/absl/meta/type_traits.h index ba87d2f0ed..d886cb30a8 100644 --- a/third_party/abseil-cpp/absl/meta/type_traits.h +++ b/third_party/abseil-cpp/absl/meta/type_traits.h @@ -35,7 +35,7 @@ #ifndef ABSL_META_TYPE_TRAITS_H_ #define ABSL_META_TYPE_TRAITS_H_ -#include <stddef.h> +#include <cstddef> #include <functional> #include <type_traits> @@ -47,6 +47,14 @@ #define ABSL_META_INTERNAL_STD_CONSTRUCTION_TRAITS_DONT_CHECK_DESTRUCTION 1 #endif +// Defines the default alignment. `__STDCPP_DEFAULT_NEW_ALIGNMENT__` is a C++17 +// feature. +#if defined(__STDCPP_DEFAULT_NEW_ALIGNMENT__) +#define ABSL_INTERNAL_DEFAULT_NEW_ALIGNMENT __STDCPP_DEFAULT_NEW_ALIGNMENT__ +#else // defined(__STDCPP_DEFAULT_NEW_ALIGNMENT__) +#define ABSL_INTERNAL_DEFAULT_NEW_ALIGNMENT alignof(std::max_align_t) +#endif // defined(__STDCPP_DEFAULT_NEW_ALIGNMENT__) + namespace absl { ABSL_NAMESPACE_BEGIN @@ -219,7 +227,7 @@ using void_t = typename type_traits_internal::VoidTImpl<Ts...>::type; // This metafunction is designed to be a drop-in replacement for the C++17 // `std::conjunction` metafunction. template <typename... Ts> -struct conjunction; +struct conjunction : std::true_type {}; template <typename T, typename... Ts> struct conjunction<T, Ts...> @@ -228,9 +236,6 @@ struct conjunction<T, Ts...> template <typename T> struct conjunction<T> : T {}; -template <> -struct conjunction<> : std::true_type {}; - // disjunction // // Performs a compile-time logical OR operation on the passed types (which @@ -241,7 +246,7 @@ struct conjunction<> : std::true_type {}; // This metafunction is designed to be a drop-in replacement for the C++17 // `std::disjunction` metafunction. template <typename... Ts> -struct disjunction; +struct disjunction : std::false_type {}; template <typename T, typename... Ts> struct disjunction<T, Ts...> : @@ -250,9 +255,6 @@ struct disjunction<T, Ts...> : template <typename T> struct disjunction<T> : T {}; -template <> -struct disjunction<> : std::false_type {}; - // negation // // Performs a compile-time logical NOT operation on the passed type (which @@ -505,6 +507,27 @@ struct is_trivially_copy_assignable #endif // ABSL_HAVE_STD_IS_TRIVIALLY_ASSIGNABLE }; +#if defined(__cpp_lib_remove_cvref) && __cpp_lib_remove_cvref >= 201711L +template <typename T> +using remove_cvref = std::remove_cvref<T>; + +template <typename T> +using remove_cvref_t = typename std::remove_cvref<T>::type; +#else +// remove_cvref() +// +// C++11 compatible implementation of std::remove_cvref which was added in +// C++20. +template <typename T> +struct remove_cvref { + using type = + typename std::remove_cv<typename std::remove_reference<T>::type>::type; +}; + +template <typename T> +using remove_cvref_t = typename remove_cvref<T>::type; +#endif + namespace type_traits_internal { // is_trivially_copyable() // @@ -616,8 +639,23 @@ using common_type_t = typename std::common_type<T...>::type; template <typename T> using underlying_type_t = typename std::underlying_type<T>::type; -template <typename T> -using result_of_t = typename std::result_of<T>::type; + +namespace type_traits_internal { + +#if (defined(__cpp_lib_is_invocable) && __cpp_lib_is_invocable >= 201703L) || \ + (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) +// std::result_of is deprecated (C++17) or removed (C++20) +template<typename> struct result_of; +template<typename F, typename... Args> +struct result_of<F(Args...)> : std::invoke_result<F, Args...> {}; +#else +template<typename F> using result_of = std::result_of<F>; +#endif + +} // namespace type_traits_internal + +template<typename F> +using result_of_t = typename type_traits_internal::result_of<F>::type; namespace type_traits_internal { // In MSVC we can't probe std::hash or stdext::hash because it triggers a |