mirror of
https://github.com/HowardHinnant/date.git
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178 lines
6.7 KiB
C++
178 lines
6.7 KiB
C++
// The MIT License (MIT)
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//
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// Copyright (c) 2015, 2016 Howard Hinnant
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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// class year_month_day_last
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// {
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// public:
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// constexpr year_month_day_last(const date::year& y,
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// const date::month_day_last& mdl) noexcept;
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//
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// year_month_day_last& operator+=(const months& m) noexcept;
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// year_month_day_last& operator-=(const months& m) noexcept;
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// year_month_day_last& operator+=(const years& y) noexcept;
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// year_month_day_last& operator-=(const years& y) noexcept;
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//
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// constexpr date::year year() const noexcept;
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// constexpr date::month month() const noexcept;
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// constexpr date::month_day_last month_day_last() const noexcept;
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// constexpr date::day day() const noexcept;
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//
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// constexpr operator sys_days() const noexcept;
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// constexpr bool ok() const noexcept;
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// };
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// constexpr
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// bool operator==(const year_month_day_last& x, const year_month_day_last& y) noexcept;
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// constexpr
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// bool operator!=(const year_month_day_last& x, const year_month_day_last& y) noexcept;
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// constexpr
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// bool operator< (const year_month_day_last& x, const year_month_day_last& y) noexcept;
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// constexpr
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// bool operator> (const year_month_day_last& x, const year_month_day_last& y) noexcept;
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// constexpr
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// bool operator<=(const year_month_day_last& x, const year_month_day_last& y) noexcept;
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// constexpr
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// bool operator>=(const year_month_day_last& x, const year_month_day_last& y) noexcept;
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// constexpr
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// year_month_day_last
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// operator+(const year_month_day_last& ymdl, const months& dm) noexcept;
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//
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// constexpr
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// year_month_day_last
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// operator+(const months& dm, const year_month_day_last& ymdl) noexcept;
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//
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// constexpr
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// year_month_day_last
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// operator+(const year_month_day_last& ymdl, const years& dy) noexcept;
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//
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// constexpr
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// year_month_day_last
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// operator+(const years& dy, const year_month_day_last& ymdl) noexcept;
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//
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// constexpr
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// year_month_day_last
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// operator-(const year_month_day_last& ymdl, const months& dm) noexcept;
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//
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// constexpr
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// year_month_day_last
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// operator-(const year_month_day_last& ymdl, const years& dy) noexcept;
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// std::ostream& operator<<(std::ostream& os, const year_month_day_last& ymdl);
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#include "date.h"
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#include <cassert>
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#include <sstream>
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#include <type_traits>
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static_assert( std::is_trivially_destructible<date::year_month_day_last>{}, "");
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static_assert(!std::is_default_constructible<date::year_month_day_last>{}, "");
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static_assert( std::is_trivially_copy_constructible<date::year_month_day_last>{}, "");
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static_assert( std::is_trivially_copy_assignable<date::year_month_day_last>{}, "");
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static_assert( std::is_trivially_move_constructible<date::year_month_day_last>{}, "");
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static_assert( std::is_trivially_move_assignable<date::year_month_day_last>{}, "");
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static_assert(std::is_nothrow_constructible<date::year_month_day_last,
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date::year, date::month_day_last>{}, "");
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static_assert(std::is_nothrow_constructible<date::sys_days,
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date::year_month_day_last>{}, "");
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static_assert(std::is_convertible<date::year_month_day_last, date::sys_days>{}, "");
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void
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test_arithmetic()
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{
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using namespace date;
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for (int y1 = 2010; y1 <= 2015; ++y1)
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{
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for (int m1 = 1; m1 <= 12; ++m1)
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{
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auto ymd1 = last/m1/y1;;
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auto ymd2 = ymd1 + months(24);
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assert(ymd2 == last/m1/(y1+2));
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ymd2 = ymd1 - months(24);
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assert(ymd2 == last/m1/(y1-2));
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for (int m2 = -24; m2 <= 24; ++m2)
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{
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months m{m2};
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auto ymd3 = ymd1 + m;
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months dm = year_month{ymd3.year(), ymd3.month()} -
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year_month{ymd2.year(), ymd2.month()};
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assert(dm == m + years{2});
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assert(ymd3 - m == ymd1);
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assert(ymd3 + -m == ymd1);
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assert(-m + ymd3 == ymd1);
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assert((year_month_day_last{ymd1} += m) == ymd3);
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assert((year_month_day_last{ymd3} -= m) == ymd1);
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}
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for (int y2 = -2; y2 <= 5; ++y2)
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{
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years y{y2};
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auto ymd3 = ymd1 + y;
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years dy = floor<years>(year_month{ymd3.year(), ymd3.month()} -
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year_month{ymd2.year(), ymd2.month()});
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assert(dy == y + years{2});
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assert(ymd3 - y == ymd1);
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assert(ymd3 + -y == ymd1);
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assert(-y + ymd3 == ymd1);
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assert((year_month_day_last{ymd1} += y) == ymd3);
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assert((year_month_day_last{ymd3} -= y) == ymd1);
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}
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}
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}
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}
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int
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main()
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{
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using namespace date;
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constexpr year_month_day_last ymdl1 = {2015_y, month_day_last{aug}};
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static_assert(ymdl1.ok(), "");
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static_assert(ymdl1.year() == 2015_y, "");
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static_assert(ymdl1.month() == aug, "");
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static_assert(ymdl1.month_day_last() == month_day_last{aug}, "");
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#if __cplusplus >= 201402
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static_assert(ymdl1.day() == 31_d, "");
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constexpr sys_days dp = ymdl1;
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constexpr year_month_day ymd = dp;
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static_assert(ymd == 2015_y/aug/31, "");
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#endif
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constexpr year_month_day_last ymdl2 = {2015_y, month_day_last{sep}};
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static_assert(ymdl1 == ymdl1, "");
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static_assert(ymdl1 != ymdl2, "");
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static_assert(ymdl1 < ymdl2, "");
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static_assert(ymdl2 > ymdl1, "");
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static_assert(ymdl1 <= ymdl1, "");
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static_assert(ymdl2 >= ymdl1, "");
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test_arithmetic();
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std::ostringstream os;
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os << ymdl1;
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assert(os.str() == "2015/Aug/last");
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}
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