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libcxx/test/std/utilities/time/time.cal/time.cal.mwd/time.cal.mwd.members/month.pass.cpp

43 lines
1.3 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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 month_weekday;
// constexpr chrono::month month() const noexcept;
// Returns: wd_
#include <chrono>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
int main()
{
using month_weekday = std::chrono::month_weekday;
using month = std::chrono::month;
using weekday = std::chrono::weekday;
using weekday_indexed = std::chrono::weekday_indexed;
constexpr weekday Sunday = std::chrono::Sunday;
ASSERT_NOEXCEPT( std::declval<const month_weekday>().month());
ASSERT_SAME_TYPE(month, decltype(std::declval<const month_weekday>().month()));
static_assert( month_weekday{}.month() == month{}, "");
for (unsigned i = 1; i <= 50; ++i)
{
month_weekday md(month{i}, weekday_indexed{Sunday, 1});
assert( static_cast<unsigned>(md.month()) == i);
}
}