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| 1 | +#pragma once |
| 2 | +#include "C++Utilities/CppUtils.hpp" |
| 3 | + |
| 4 | +template<class Type> |
| 5 | +concept Integral = is_integral<Type>::value; |
| 6 | + |
| 7 | +template<class Type> |
| 8 | +concept NotIntegral = !is_integral<Type>::value; |
| 9 | + |
| 10 | +template <class T> |
| 11 | +concept Callable = requires(T a) |
| 12 | +{ |
| 13 | + { a() }; |
| 14 | +}; |
| 15 | + |
| 16 | +template <class T> |
| 17 | +concept NotCallable = !Callable<T>; |
| 18 | + |
| 19 | +template <class... Types> |
| 20 | +struct has_callable; |
| 21 | + |
| 22 | +template <class Type, class... Types> |
| 23 | +struct has_callable<Type,Types...>{ |
| 24 | + static constexpr bool value = Callable<Type> || has_callable<Types...>::value; |
| 25 | +}; |
| 26 | + |
| 27 | +template <> |
| 28 | +struct has_callable<>{ |
| 29 | + static constexpr bool value = false; |
| 30 | +}; |
| 31 | + |
| 32 | +template <class... Types> |
| 33 | +concept CallablePack = has_callable<Types...>::value; |
| 34 | + |
| 35 | +template <class... Types> |
| 36 | +concept NotCallablePack = !CallablePack<Types...>; |
| 37 | + |
| 38 | +template <class T> |
| 39 | +concept Container = requires(T a, const T b) |
| 40 | +{ |
| 41 | + requires std::regular<T>; |
| 42 | + requires std::swappable<T>; |
| 43 | + requires std::same_as<typename T::reference, typename T::value_type &>; |
| 44 | + requires std::same_as<typename T::const_reference, const typename T::value_type &>; |
| 45 | + requires std::forward_iterator<typename T::iterator>; |
| 46 | + requires std::forward_iterator<typename T::const_iterator>; |
| 47 | + requires std::signed_integral<typename T::difference_type>; |
| 48 | + requires std::same_as<typename T::difference_type, typename std::iterator_traits<typename T::iterator>::difference_type>; |
| 49 | + requires std::same_as<typename T::difference_type, typename std::iterator_traits<typename T::const_iterator>::difference_type>; |
| 50 | + { a.begin() } -> std::same_as<typename T::iterator>; |
| 51 | + { a.end() } -> std::same_as<typename T::iterator>; |
| 52 | + { b.begin() } -> std::same_as<typename T::const_iterator>; |
| 53 | + { b.end() } -> std::same_as<typename T::const_iterator>; |
| 54 | + { a.cbegin() } -> std::same_as<typename T::const_iterator>; |
| 55 | + { a.cend() } -> std::same_as<typename T::const_iterator>; |
| 56 | + { a.size() } -> std::same_as<typename T::size_type>; |
| 57 | + { a.max_size() } -> std::same_as<typename T::size_type>; |
| 58 | + { a.empty() } -> std::convertible_to<bool>; |
| 59 | +}; |
| 60 | + |
| 61 | +template <class T> |
| 62 | +concept NotContainer = !Container<T>; |
| 63 | + |
| 64 | +template <class T, class... U> |
| 65 | +concept PackDerivesFrom = (std::derived_from<T, U> && ...); |
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