test/std/utilities/time/time.cal/time.cal.mdlast/comparisons.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     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++03, c++11, c++14, c++17

// <chrono>
// class month_day_last;

// constexpr bool operator==(const month_day& x, const month_day& y) noexcept;
//   Returns: x.month() == y.month()
//
// constexpr bool operator< (const month_day& x, const month_day& y) noexcept;
//   Returns: x.month() < y.month()


#include <chrono>
#include <type_traits>
#include <cassert>

#include "test_macros.h"
#include "test_comparisons.h"

int main()
{
    using month          = std::chrono::month;
    using month_day_last = std::chrono::month_day_last;

    AssertComparisons6AreNoexcept<month_day_last>();
    AssertComparisons6ReturnBool<month_day_last>();
    
    static_assert( testComparisons6Values<month_day_last>(month{1}, month{1}), "");
    static_assert( testComparisons6Values<month_day_last>(month{1}, month{2}), "");

//  same day, different months
    for (unsigned i = 1; i < 12; ++i)
        for (unsigned j = 1; j < 12; ++j)
            assert((testComparisons6Values<month_day_last>(month{i}, month{j})));
}