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Use __is_trivially_copyable if possible.

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This commit is contained in:
levlam 2023-02-07 13:13:56 +03:00
parent 694378f9ab
commit a08b1f9107
1 changed files with 6 additions and 1 deletions
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7
tdutils/td/utils/type_traits.h
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@ -7,6 +7,7 @@
#pragma once
#include "td/utils/int_types.h"
#include "td/utils/port/platform.h"
#include <type_traits>
@ -31,9 +32,13 @@ constexpr size_t member_function_argument_count() {
return member_function_class<FunctionT>::argument_count();
}
// no std::is_trivially_copyable in libstdc++ before 5.0
// there is no std::is_trivially_copyable in libstdc++ before 5.0
#if __GLIBCXX__
#if TD_CLANG || (TD_GCC && __GNUC__ >= 5) // but clang >= 3.0 and g++ >= 5.0 supports __is_trivially_copyable
#define TD_IS_TRIVIALLY_COPYABLE(T) __is_trivially_copyable(T)
#else
#define TD_IS_TRIVIALLY_COPYABLE(T) __has_trivial_copy(T)
#endif
#else
#define TD_IS_TRIVIALLY_COPYABLE(T) ::std::is_trivially_copyable<T>::value
#endif