//===----------------------------------------------------------------------===//
//
// 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, c++17
// <iterator>
// move_sentinel
// constexpr move_sentinel();
#include <iterator>
#include <cassert>
constexpr bool test()
{
// The underlying sentinel is an integer.
{
std::move_sentinel<int> m;
assert(m.base() == 0);
}
// The underlying sentinel is a pointer.
{
std::move_sentinel<int*> m;
assert(m.base() == nullptr);
}
// The underlying sentinel is a user-defined type with an explicit default constructor.
{
struct S {
explicit S() = default;
int i = 3;
};
std::move_sentinel<S> m;
assert(m.base().i == 3);
}
return true;
}
int main(int, char**)
{
test();
static_assert(test());
return 0;
}