bool_constant.pass.cpp
1 KB
//===----------------------------------------------------------------------===//
//
// 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
// bool_constant
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
#if TEST_STD_VER > 14
typedef std::bool_constant<true> _t;
static_assert(_t::value, "");
static_assert((std::is_same<_t::value_type, bool>::value), "");
static_assert((std::is_same<_t::type, _t>::value), "");
static_assert((_t() == true), "");
typedef std::bool_constant<false> _f;
static_assert(!_f::value, "");
static_assert((std::is_same<_f::value_type, bool>::value), "");
static_assert((std::is_same<_f::type, _f>::value), "");
static_assert((_f() == false), "");
#endif
return 0;
}