182 lines
6.2 KiB
C++
182 lines
6.2 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 month
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// {
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// unsigned char m_;
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// public:
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// explicit constexpr month(unsigned m) noexcept;
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//
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// month& operator++() noexcept;
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// month operator++(int) noexcept;
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// month& operator--() noexcept;
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// month operator--(int) noexcept;
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//
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// month& operator+=(const months& m) noexcept;
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// month& operator-=(const months& m) noexcept;
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//
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// constexpr explicit operator unsigned() const noexcept;
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// constexpr bool ok() const noexcept;
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// };
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//
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// constexpr bool operator==(const month& x, const month& y) noexcept;
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// constexpr bool operator!=(const month& x, const month& y) noexcept;
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// constexpr bool operator< (const month& x, const month& y) noexcept;
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// constexpr bool operator> (const month& x, const month& y) noexcept;
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// constexpr bool operator<=(const month& x, const month& y) noexcept;
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// constexpr bool operator>=(const month& x, const month& y) noexcept;
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//
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// constexpr month operator+(const month& x, const months& y) noexcept;
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// constexpr month operator+(const months& x, const month& y) noexcept;
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// constexpr month operator-(const month& x, const months& y) noexcept;
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// constexpr months operator-(const month& x, const month& y) noexcept;
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//
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// std::ostream& operator<<(std::ostream& os, const month& m);
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// constexpr month jan{1};
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// constexpr month feb{2};
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// constexpr month mar{3};
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// constexpr month apr{4};
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// constexpr month may{5};
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// constexpr month jun{6};
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// constexpr month jul{7};
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// constexpr month aug{8};
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// constexpr month sep{9};
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// constexpr month oct{10};
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// constexpr month nov{11};
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// constexpr month dec{12};
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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::month>{}, "");
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static_assert( std::is_default_constructible<date::month>{}, "");
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static_assert( std::is_trivially_copy_constructible<date::month>{}, "");
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static_assert( std::is_trivially_copy_assignable<date::month>{}, "");
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static_assert( std::is_trivially_move_constructible<date::month>{}, "");
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static_assert( std::is_trivially_move_assignable<date::month>{}, "");
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static_assert( std::is_nothrow_constructible<date::month, unsigned>{}, "");
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static_assert( std::is_nothrow_constructible<unsigned, date::month>{}, "");
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static_assert(!std::is_convertible<unsigned, date::month>{}, "");
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static_assert(!std::is_convertible<date::month, unsigned>{}, "");
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static_assert(static_cast<unsigned>(date::month{1}) == 1, "");
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static_assert(!date::month{0}.ok(), "");
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static_assert( date::month{1}.ok(), "");
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static_assert( date::month{2}.ok(), "");
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static_assert( date::month{3}.ok(), "");
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static_assert( date::month{4}.ok(), "");
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static_assert( date::month{5}.ok(), "");
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static_assert( date::month{6}.ok(), "");
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static_assert( date::month{7}.ok(), "");
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static_assert( date::month{8}.ok(), "");
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static_assert( date::month{9}.ok(), "");
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static_assert( date::month{10}.ok(), "");
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static_assert( date::month{11}.ok(), "");
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static_assert( date::month{12}.ok(), "");
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static_assert(!date::month{13}.ok(), "");
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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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static_assert(jan == month{1}, "");
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static_assert(feb == month{2}, "");
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static_assert(mar == month{3}, "");
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static_assert(apr == month{4}, "");
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static_assert(may == month{5}, "");
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static_assert(jun == month{6}, "");
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static_assert(jul == month{7}, "");
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static_assert(aug == month{8}, "");
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static_assert(sep == month{9}, "");
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static_assert(oct == month{10}, "");
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static_assert(nov == month{11}, "");
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static_assert(dec == month{12}, "");
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static_assert(!(jan != jan), "");
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static_assert( jan != feb, "");
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static_assert( feb != jan, "");
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static_assert(!(jan < jan), "");
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static_assert( jan < feb, "");
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static_assert(!(feb < jan), "");
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static_assert( jan <= jan, "");
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static_assert( jan <= feb, "");
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static_assert(!(feb <= jan), "");
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static_assert(!(jan > jan), "");
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static_assert(!(jan > feb), "");
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static_assert( feb > jan, "");
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static_assert( jan >= jan, "");
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static_assert(!(jan >= feb), "");
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static_assert( feb >= jan, "");
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assert(mar + months{7} == oct);
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assert(mar + months{27} == jun);
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assert(months{7} + mar == oct);
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assert(months{27} + mar == jun);
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assert(mar - months{7} == aug);
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assert(mar - months{27} == dec);
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assert(mar - feb == months{1});
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assert(feb - mar == months{11});
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#if __cplusplus >= 201402
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static_assert(mar + months{7} == oct, "");
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static_assert(mar + months{27} == jun, "");
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static_assert(months{7} + mar == oct, "");
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static_assert(months{27} + mar == jun, "");
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static_assert(mar - months{7} == aug, "");
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static_assert(mar - months{27} == dec, "");
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static_assert(mar - feb == months{1}, "");
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static_assert(feb - mar == months{11}, "");
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#endif
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auto m = dec;
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assert(++m == jan);
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assert(m++ == jan);
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assert(m == feb);
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assert(m-- == feb);
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assert(m == jan);
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assert(--m == dec);
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assert((m += months{2}) == feb);
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assert((m -= months{2}) == dec);
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std::ostringstream os;
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os << m;
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assert(os.str() == "Dec");
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m += months{11};
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os.str("");
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os << m;
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assert(os.str() == "Nov");
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}
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