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37cfc53d1d
`alternative_namespaces` examples left out as I consider them a subject for removal in the nearest future.
91 lines
5.2 KiB
C++
91 lines
5.2 KiB
C++
// The MIT License (MIT)
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//
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// Copyright (c) 2018 Mateusz Pusz
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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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#include <units/bits/external/type_traits.h>
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#include <units/chrono.h>
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#include <units/isq/si/length.h>
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#include <units/isq/si/speed.h>
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#include <units/quantity_point.h>
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#include <ratio>
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namespace {
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using namespace units;
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using namespace units::isq;
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using namespace units::isq::si::literals;
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using namespace std::chrono_literals;
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using sys_seconds = std::chrono::time_point<std::chrono::system_clock, std::chrono::seconds>;
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using sys_days = std::chrono::time_point<std::chrono::system_clock,
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std::chrono::duration<long, std::ratio_multiply<std::ratio<24>, std::chrono::hours::period>>>;
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template<typename U, typename Rep = double> using time_point = quantity_point<si::dim_time, U, Rep>;
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static_assert(QuantityLike<std::chrono::seconds>);
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static_assert(QuantityPointLike<sys_seconds>);
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// construction - same rep type
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static_assert(std::constructible_from<si::time<si::second, std::chrono::seconds::rep>, std::chrono::seconds>);
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static_assert(!std::convertible_to<std::chrono::seconds, si::time<si::second, std::chrono::seconds::rep>>);
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static_assert(std::constructible_from<si::time<si::hour, std::chrono::hours::rep>, std::chrono::hours>);
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static_assert(!std::convertible_to<std::chrono::hours, si::time<si::hour, std::chrono::hours::rep>>);
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static_assert(std::constructible_from<si::time<si::second, std::chrono::hours::rep>, std::chrono::hours>);
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static_assert(!std::convertible_to<std::chrono::hours, si::time<si::second, std::chrono::hours::rep>>);
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static_assert(!std::constructible_from<si::time<si::hour, std::chrono::seconds::rep>, std::chrono::seconds>);
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static_assert(!std::convertible_to<std::chrono::seconds, si::time<si::hour, std::chrono::seconds::rep>>);
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static_assert(std::constructible_from<time_point<si::second, sys_seconds::rep>, sys_seconds>);
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static_assert(!std::convertible_to<sys_seconds, time_point<si::second, sys_seconds::rep>>);
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static_assert(std::constructible_from<time_point<si::day, sys_days::rep>, sys_days>);
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static_assert(!std::convertible_to<sys_days, time_point<si::day, sys_days::rep>>);
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static_assert(std::constructible_from<time_point<si::second, sys_days::rep>, sys_days>);
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static_assert(!std::convertible_to<sys_days, time_point<si::second, sys_days::rep>>);
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static_assert(!std::constructible_from<time_point<si::day, sys_seconds::rep>, sys_seconds>);
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static_assert(!std::convertible_to<sys_seconds, time_point<si::day, sys_seconds::rep>>);
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// construction - different rep type (integral to a floating-point)
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static_assert(std::constructible_from<si::time<si::second>, std::chrono::seconds>);
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static_assert(!std::convertible_to<std::chrono::seconds, si::time<si::second>>);
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static_assert(std::constructible_from<si::time<si::second>, std::chrono::hours>);
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static_assert(!std::convertible_to<std::chrono::hours, si::time<si::second>>);
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static_assert(std::constructible_from<si::time<si::hour>, std::chrono::seconds>);
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static_assert(!std::convertible_to<std::chrono::seconds, si::time<si::hour>>);
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static_assert(std::constructible_from<time_point<si::second>, sys_seconds>);
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static_assert(!std::convertible_to<sys_seconds, time_point<si::second>>);
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static_assert(std::constructible_from<time_point<si::second>, sys_days>);
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static_assert(!std::convertible_to<sys_days, time_point<si::second>>);
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static_assert(std::constructible_from<time_point<si::day>, sys_seconds>);
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static_assert(!std::convertible_to<sys_seconds, time_point<si::day>>);
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// CTAD
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static_assert(is_same_v<decltype(quantity{1s}), si::time<si::second, std::chrono::seconds::rep>>);
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static_assert(is_same_v<decltype(quantity{1h}), si::time<si::hour, std::chrono::hours::rep>>);
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static_assert(is_same_v<decltype(quantity_point{sys_seconds{1s}}), time_point<si::second, sys_seconds::rep>>);
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static_assert(is_same_v<decltype(quantity_point{sys_days{sys_days::duration{1}}}), time_point<si::day, sys_days::rep>>);
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// operators
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static_assert(quantity{1s} + 1_q_s == 2_q_s);
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static_assert(quantity{1s} + 1_q_min == 61_q_s);
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static_assert(10_q_m / quantity{2s} == 5_q_m_per_s);
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static_assert(quantity_point{sys_seconds{1s}} + 1_q_s == quantity_point{2_q_s});
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static_assert(quantity_point{sys_seconds{1s}} + 1_q_min == quantity_point{61_q_s});
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} // namespace
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