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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_copy_assignable
#include <type_traits>
#include "test_macros.h"
template <class T>
void test_is_copy_assignable()
{
static_assert(( std::is_copy_assignable<T>::value), "");
#if TEST_STD_VER > 14
static_assert(( std::is_copy_assignable_v<T>), "");
#endif
}
template <class T>
void test_is_not_copy_assignable()
{
static_assert((!std::is_copy_assignable<T>::value), "");
#if TEST_STD_VER > 14
static_assert((!std::is_copy_assignable_v<T>), "");
#endif
}
class Empty
{
};
class NotEmpty
{
public:
virtual ~NotEmpty();
};
union Union {};
struct bit_zero
{
int : 0;
};
struct A
{
A();
};
class B
{
B& operator=(const B&);
};
struct C
{
void operator=(C&); // not const
};
int main()
{
test_is_copy_assignable<int> ();
test_is_copy_assignable<int&> ();
test_is_copy_assignable<A> ();
test_is_copy_assignable<bit_zero> ();
test_is_copy_assignable<Union> ();
test_is_copy_assignable<NotEmpty> ();
test_is_copy_assignable<Empty> ();
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
test_is_not_copy_assignable<const int> ();
test_is_not_copy_assignable<int[]> ();
test_is_not_copy_assignable<int[3]> ();
#endif
#if __has_feature(cxx_access_control_sfinae)
test_is_not_copy_assignable<B> ();
#endif
test_is_not_copy_assignable<void> ();
test_is_not_copy_assignable<C> ();
}
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