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64 lines
2.6 KiB
C++
64 lines
2.6 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 <mp-units/bits/ratio.h>
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namespace {
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using namespace mp_units::detail;
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static_assert(ratio(2, 4) == ratio(1, 2));
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static_assert(ratio(1) * ratio(3, 8) == ratio(3, 8));
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static_assert(ratio(3, 8) * ratio(1) == ratio(3, 8));
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static_assert(ratio(4) * ratio(1, 8) == ratio(1, 2));
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static_assert(ratio(4) * ratio(1, 2) == ratio(2));
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static_assert(ratio(1, 8) * ratio(2) == ratio(1, 4));
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static_assert(ratio(1, 2) * ratio(8) == ratio(4));
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// ratio negation
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static_assert(-ratio(3, 8) == ratio(-3, 8));
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// ratio addition
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static_assert(ratio(1, 2) + ratio(1, 3) == ratio(5, 6));
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static_assert(ratio(4) / ratio(2) == ratio(2));
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static_assert(ratio(2) / ratio(8) == ratio(1, 4));
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static_assert(ratio(1, 8) / ratio(2) == ratio(1, 16));
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static_assert(ratio(6) / ratio(3) == ratio(2));
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// common_ratio
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static_assert(common_ratio(ratio(1), ratio(1000)) == ratio(1));
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static_assert(common_ratio(ratio(1000), ratio(1)) == ratio(1));
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static_assert(common_ratio(ratio(1), ratio(1, 1000)) == ratio(1, 1000));
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static_assert(common_ratio(ratio(1, 1000), ratio(1)) == ratio(1, 1000));
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static_assert(common_ratio(ratio(100, 1), ratio(10, 1)) == ratio(10, 1));
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static_assert(common_ratio(ratio(100, 1), ratio(1, 10)) == ratio(1, 10));
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static_assert(common_ratio(ratio(2), ratio(4)) == ratio(2));
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// comparison
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static_assert((ratio(3, 4) <=> ratio(6, 8)) == (0 <=> 0));
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static_assert((ratio(3, 4) <=> ratio(-3, 4)) == (0 <=> -1));
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static_assert((ratio(-3, 4) <=> ratio(3, -4)) == (0 <=> 0));
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} // namespace
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