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70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
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// <chrono>
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// class year_month;
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// constexpr bool operator==(const year_month& x, const year_month& y) noexcept;
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// Returns: x.year() == y.year() && x.month() == y.month().
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//
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// constexpr bool operator< (const year_month& x, const year_month& y) noexcept;
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// Returns:
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// If x.year() < y.year() returns true.
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// Otherwise, if x.year() > y.year() returns false.
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// Otherwise, returns x.month() < y.month().
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#include <chrono>
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#include <type_traits>
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#include <cassert>
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#include "test_macros.h"
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#include "test_comparisons.h"
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int main()
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{
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using year = std::chrono::year;
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using month = std::chrono::month;
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using year_month = std::chrono::year_month;
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AssertComparisons6AreNoexcept<year_month>();
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AssertComparisons6ReturnBool<year_month>();
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static_assert( testComparisons6(
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year_month{year{1234}, std::chrono::January},
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year_month{year{1234}, std::chrono::January},
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true, false), "");
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static_assert( testComparisons6(
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year_month{year{1234}, std::chrono::January},
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year_month{year{1234}, std::chrono::February},
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false, true), "");
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static_assert( testComparisons6(
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year_month{year{1234}, std::chrono::January},
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year_month{year{1235}, std::chrono::January},
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false, true), "");
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// same year, different months
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for (unsigned i = 1; i < 12; ++i)
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for (unsigned j = 1; j < 12; ++j)
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assert((testComparisons6(
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year_month{year{1234}, month{i}},
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year_month{year{1234}, month{j}},
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i == j, i < j )));
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// same month, different years
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for (int i = 1000; i < 20; ++i)
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for (int j = 1000; j < 20; ++j)
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assert((testComparisons6(
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year_month{year{i}, std::chrono::January},
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year_month{year{j}, std::chrono::January},
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i == j, i < j )));
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}
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