forked from mpusz/mp-units
54 lines
2.0 KiB
C++
54 lines
2.0 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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#pragma once
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#include <units/bits/hacks.h>
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#include <units/bits/numeric_concepts.h>
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#include <units/bits/customization_points.h>
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#include <units/ratio.h>
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namespace units {
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namespace detail {
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template<typename T, typename U = T>
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concept basic_arithmetic = // exposition only
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std::magma<std::ranges::plus, T, U> &&
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std::magma<std::ranges::minus, T, U> &&
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std::magma<std::ranges::times, T, U> &&
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std::magma<std::ranges::divided_by, T, U>;
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template<typename From, typename To>
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concept safe_convertible = // exposition only
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std::convertible_to<From, To> &&
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(treat_as_floating_point<To> || (!treat_as_floating_point<From>));
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template<typename Rep, typename unit_from, typename unit_to>
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concept safe_divisible = // exposition only
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treat_as_floating_point<Rep> ||
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ratio_divide<typename unit_from::ratio, typename unit_to::ratio>::den == 1;
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}
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} // namespace units
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