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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.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
// <chrono>
// class day;
// day() = default;
// explicit constexpr day(unsigned d) noexcept;
// explicit constexpr operator unsigned() const noexcept;
// Effects: Constructs an object of type day by initializing d_ with d.
// The value held is unspecified if d is not in the range [0, 255].
#include <chrono>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main()
{
using day = std::chrono::day;
ASSERT_NOEXCEPT(day{});
ASSERT_NOEXCEPT(day(0U));
ASSERT_NOEXCEPT(static_cast<unsigned>(day(0U)));
constexpr day d0{};
static_assert(static_cast<unsigned>(d0) == 0, "");
constexpr day d1{1};
static_assert(static_cast<unsigned>(d1) == 1, "");
for (unsigned i = 0; i <= 255; ++i)
{
day day(i);
assert(static_cast<unsigned>(day) == i);
}
}
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