blob: 9761078b24cd1f52ac2bf4e2929fd0b470ff331e [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// 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 year_month;
// constexpr bool operator==(const year_month& x, const year_month& y) noexcept;
// Returns: x.year() == y.year() && x.month() == y.month().
//
// constexpr bool operator< (const year_month& x, const year_month& y) noexcept;
// Returns:
// If x.year() < y.year() returns true.
// Otherwise, if x.year() > y.year() returns false.
// Otherwise, returns x.month() < y.month().
#include <chrono>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
#include "test_comparisons.h"
int main()
{
using year = std::chrono::year;
using month = std::chrono::month;
using year_month = std::chrono::year_month;
AssertComparisons6AreNoexcept<year_month>();
AssertComparisons6ReturnBool<year_month>();
static_assert( testComparisons6(
year_month{year{1234}, std::chrono::January},
year_month{year{1234}, std::chrono::January},
true, false), "");
static_assert( testComparisons6(
year_month{year{1234}, std::chrono::January},
year_month{year{1234}, std::chrono::February},
false, true), "");
static_assert( testComparisons6(
year_month{year{1234}, std::chrono::January},
year_month{year{1235}, std::chrono::January},
false, true), "");
// same year, different months
for (unsigned i = 1; i < 12; ++i)
for (unsigned j = 1; j < 12; ++j)
assert((testComparisons6(
year_month{year{1234}, month{i}},
year_month{year{1234}, month{j}},
i == j, i < j )));
// same month, different years
for (int i = 1000; i < 20; ++i)
for (int j = 1000; j < 20; ++j)
assert((testComparisons6(
year_month{year{i}, std::chrono::January},
year_month{year{j}, std::chrono::January},
i == j, i < j )));
}