//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14
// <optional>
// constexpr explicit optional<T>::operator bool() const noexcept;
#include <optional>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main(int, char**)
{
using std::optional;
{
const optional<int> opt; ((void)opt);
ASSERT_NOEXCEPT(bool(opt));
static_assert(!std::is_convertible<optional<int>, bool>::value, "");
}
{
constexpr optional<int> opt;
static_assert(!opt, "");
}
{
constexpr optional<int> opt(0);
static_assert(opt, "");
}
return 0;
}