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//===----------------------------------------------------------------------===//
//
// 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
// is_nothrow_assignable
#include <type_traits>
#include "test_macros.h"
template <class T, class U>
void test_is_nothrow_assignable()
{
static_assert(( std::is_nothrow_assignable<T, U>::value), "");
#if TEST_STD_VER > 14
static_assert(( std::is_nothrow_assignable_v<T, U>), "");
#endif
}
template <class T, class U>
void test_is_not_nothrow_assignable()
{
static_assert((!std::is_nothrow_assignable<T, U>::value), "");
#if TEST_STD_VER > 14
static_assert((!std::is_nothrow_assignable_v<T, U>), "");
#endif
}
struct A
{
};
struct B
{
void operator=(A);
};
struct C
{
void operator=(C&); // not const
};
int main()
{
test_is_nothrow_assignable<int&, int&> ();
test_is_nothrow_assignable<int&, int> ();
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
test_is_nothrow_assignable<int&, double> ();
#endif
test_is_not_nothrow_assignable<int, int&> ();
test_is_not_nothrow_assignable<int, int> ();
test_is_not_nothrow_assignable<B, A> ();
test_is_not_nothrow_assignable<A, B> ();
test_is_not_nothrow_assignable<C, C&> ();
}
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