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libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_trivially_constructible....

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C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// type_traits
// template <class T, class... Args>
// struct is_trivially_constructible;
#include <type_traits>
#include "test_macros.h"
template <class T>
void test_is_trivially_constructible()
{
static_assert(( std::is_trivially_constructible<T>::value), "");
#if TEST_STD_VER > 14
static_assert(( std::is_trivially_constructible_v<T>), "");
#endif
}
template <class T, class A0>
void test_is_trivially_constructible()
{
static_assert(( std::is_trivially_constructible<T, A0>::value), "");
#if TEST_STD_VER > 14
static_assert(( std::is_trivially_constructible_v<T, A0>), "");
#endif
}
template <class T>
void test_is_not_trivially_constructible()
{
static_assert((!std::is_trivially_constructible<T>::value), "");
#if TEST_STD_VER > 14
static_assert((!std::is_trivially_constructible_v<T>), "");
#endif
}
template <class T, class A0>
void test_is_not_trivially_constructible()
{
static_assert((!std::is_trivially_constructible<T, A0>::value), "");
#if TEST_STD_VER > 14
static_assert((!std::is_trivially_constructible_v<T, A0>), "");
#endif
}
template <class T, class A0, class A1>
void test_is_not_trivially_constructible()
{
static_assert((!std::is_trivially_constructible<T, A0, A1>::value), "");
#if TEST_STD_VER > 14
static_assert((!std::is_trivially_constructible_v<T, A0, A1>), "");
#endif
}
struct A
{
explicit A(int);
A(int, double);
};
int main()
{
test_is_trivially_constructible<int> ();
test_is_trivially_constructible<int, const int&> ();
test_is_not_trivially_constructible<A, int> ();
test_is_not_trivially_constructible<A, int, double> ();
test_is_not_trivially_constructible<A> ();
}