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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// type_traits
// is_standard_layout
#include <type_traits>
#include "test_macros.h"
template <class T>
void test_is_standard_layout()
{
static_assert( std::is_standard_layout<T>::value, "");
static_assert( std::is_standard_layout<const T>::value, "");
static_assert( std::is_standard_layout<volatile T>::value, "");
static_assert( std::is_standard_layout<const volatile T>::value, "");
#if TEST_STD_VER > 14
static_assert( std::is_standard_layout_v<T>, "");
static_assert( std::is_standard_layout_v<const T>, "");
static_assert( std::is_standard_layout_v<volatile T>, "");
static_assert( std::is_standard_layout_v<const volatile T>, "");
#endif
}
template <class T>
void test_is_not_standard_layout()
{
static_assert(!std::is_standard_layout<T>::value, "");
static_assert(!std::is_standard_layout<const T>::value, "");
static_assert(!std::is_standard_layout<volatile T>::value, "");
static_assert(!std::is_standard_layout<const volatile T>::value, "");
#if TEST_STD_VER > 14
static_assert(!std::is_standard_layout_v<T>, "");
static_assert(!std::is_standard_layout_v<const T>, "");
static_assert(!std::is_standard_layout_v<volatile T>, "");
static_assert(!std::is_standard_layout_v<const volatile T>, "");
#endif
}
template <class T1, class T2>
struct pair
{
T1 first;
T2 second;
};
int main(int, char**)
{
test_is_standard_layout<int> ();
test_is_standard_layout<int[3]> ();
test_is_standard_layout<pair<int, double> > ();
test_is_not_standard_layout<int&> ();
return 0;
}
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