forked from mpusz/mp-units
82 lines
2.2 KiB
C++
82 lines
2.2 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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#pragma once
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#include <functional>
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#ifdef NDEBUG
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#define Expects(cond) (void)(cond);
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#else
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#include <cassert>
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#define Expects(cond) assert(cond);
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#endif
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#if __GNUC__ < 10
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#include <concepts/concepts.hpp>
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#define AUTO
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#define SAME_AS(T) T
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#else
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#include <concepts>
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#define AUTO auto
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#define SAME_AS(T) std::same_as<T>
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#endif
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namespace std {
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#if __GNUC__ < 10
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// concepts
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using concepts::common_reference_with;
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using concepts::common_with;
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using concepts::constructible_from;
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using concepts::convertible_to;
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using concepts::default_constructible;
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using concepts::derived_from;
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using concepts::equality_comparable_with;
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using concepts::regular;
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using concepts::same_as;
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using concepts::totally_ordered;
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using concepts::totally_ordered_with;
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template<class F, class... Args>
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concept invocable =
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requires(F&& f, Args&&... args) {
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std::invoke(std::forward<F>(f), std::forward<Args>(args)...);
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};
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template<class F, class... Args>
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concept regular_invocable = invocable<F, Args...>;
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#else
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template<class T>
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concept default_constructible = constructible_from<T>;
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#endif
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} // namespace std
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