forked from mpusz/mp-units
87 lines
3.1 KiB
C++
87 lines
3.1 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/hacks.h"
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#include "units/physical/dimensions/length.h"
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#include "units/physical/dimensions/speed.h"
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#include "units/physical/si/base/length.h"
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#include "units/physical/si/base/mass.h"
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#include "units/physical/si/base/time.h"
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#include "units/physical/si/derived/area.h"
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#include "units/physical/si/derived/speed.h"
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#include <cassert>
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#include <cstdint>
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#include <type_traits>
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#if defined(COMP_MSVC)
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#pragma warning( disable : 4459 ) // Disable shadowing warning.
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#endif
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using namespace units;
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using namespace units::physical;
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using namespace units::physical::si;
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using namespace units::physical::si::unit_constants;
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static_assert(2 * m == 2_q_m);
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static_assert(2 * s == 2_q_s);
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#if !defined(COMP_MSVC) || defined(NDEBUG)
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static_assert([]<auto& s = ::s>() {
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assert(!requires { s / 2; });
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assert(!requires { s * 2; });
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assert(!requires { s + 2; });
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assert(!requires { s + s; });
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return 1_q_s + s == 2_q_s;
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}());
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#endif
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constexpr auto m_per_s = m / s;
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static_assert(2_q_m / s == 2_q_m_per_s);
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static_assert(2 * m / s == 2_q_m_per_s);
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static_assert(2 / s * m == 2_q_m_per_s);
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static_assert(2 * (m / s) == 2_q_m_per_s);
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static_assert(2 * ::m_per_s == 2_q_m_per_s);
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static_assert(is_same_v<decltype(::m_per_s)::rep, decltype(m)::rep>);
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static_assert(120 * km / (2 * h) == 60_q_km_per_h);
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static_assert(120 * km / 2 / h == 60_q_km_per_h);
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static_assert([] {
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const auto length{120};
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const auto duration{2};
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return length * km / (duration * h);
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}() == 60_q_km_per_h);
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static_assert(is_same_v<decltype(std::int64_t{120} * km / (2 * h)), decltype(60_q_km_per_h)>);
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static_assert(is_same_v<decltype(std::int64_t{120} * km / 2 / h), decltype(60_q_km_per_h)>);
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static_assert(is_same_v<decltype(120.L * km / 2 / h), decltype(60._q_km_per_h)>);
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static_assert(1. / 4 * m2 == 1._q_m2 / 4);
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static_assert([] {
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Speed auto v0 = 10 * m / s;
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signed s = 2; // hides ^
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Length auto v = 20 * m / s;
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/* */ v0 = 10 * m / ::s;
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return !is_same_v<decltype(v0), decltype(v)>;
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}());
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int main() {}
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