97 lines
3.3 KiB
C++
97 lines
3.3 KiB
C++
// { dg-do compile { target c++20 } }
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// Copyright (C) 2020-2024 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// Class template year_month [time.cal.year_month]
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#include <chrono>
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constexpr void
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constexpr_year_month()
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{
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using namespace std::chrono;
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using ym = year_month;
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ym ym0 = 2015y/April;
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ym0 += years{100};
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ym0 -= years{100};
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ym0 += months{50};
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ym0 -= months{50};
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constexpr ym ym1 = {2015y, June};
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static_assert(ym1.year() == year{2015});
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static_assert(ym1.month() == June);
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static_assert(ym1.ok());
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constexpr ym ym2 = {2016y, May};
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static_assert(ym2.year() == year{2016});
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static_assert(ym2.month() == May);
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static_assert(ym2.ok());
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static_assert(ym1 == ym1);
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static_assert(ym1 != ym2);
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static_assert(ym1 < ym2);
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static_assert(ym1 <= ym2);
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static_assert(ym2 > ym1);
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static_assert(ym2 >= ym2);
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static_assert(ym1 <=> ym1 == std::strong_ordering::equal);
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static_assert(ym1 <=> ym2 == std::strong_ordering::less);
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static_assert(ym2 <=> ym1 == std::strong_ordering::greater);
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static_assert(2015y/August == ym{year{2015}, August});
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static_assert(2015y/8 == ym{year{2015}, August});
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static_assert(ym1 + months{6} == 2015y/December);
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static_assert(ym1 + months{7} == 2016y/January);
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static_assert(months{24} + ym1 == 2017y/June);
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static_assert(months{25} + ym1 == 2017y/July);
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static_assert(ym1 + months{-5} == 2015y/January);
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static_assert(ym1 + months{-6} == 2014y/December);
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static_assert(ym1 + months{-24} == 2013y/June);
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static_assert(ym1 + months{-25} == 2013y/May);
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static_assert(ym1 - months{5} == 2015y/January);
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static_assert(ym1 - months{6} == 2014y/December);
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static_assert(ym1 - months{24} == 2013y/June);
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static_assert(ym1 - months{25} == 2013y/May);
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static_assert(ym2 - ym1 == months{11});
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static_assert(ym1 - ym2 == -months{11});
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static_assert(ym2 + years{1} == 2017y/May);
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static_assert(ym2 + years{-1} == 2015y/May);
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static_assert(ym2 - years{1} == 2015y/May);
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static_assert(2017y/33 + months{0} == 2019y/9);
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static_assert(2010y/January + months{-12} == 2009y/January);
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static_assert(2010y/month{0} + months{-1} == 2009y/November);
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static_assert(2010y/month{0} + months{0} == 2009y/December);
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static_assert(2010y/month{0} + months{1} == 2010y/January);
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static_assert(2010y/month{0} + months{2} == 2010y/February);
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static_assert(2010y/month{0} + months{11} == 2010y/November);
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static_assert(2010y/month{0} + months{12} == 2010y/December);
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static_assert(2010y/month{0} + months{13} == 2011y/January);
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static_assert(months{-1} + 2010y/month{37} == 2012y/December);
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static_assert(months{0} + 2010y/month{37} == 2013y/January);
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static_assert(months{1} + 2010y/month{37} == 2013y/February);
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}
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