5#ifndef DUNE_COMMON_CONCEPTS_CONTAINER_HH
6#define DUNE_COMMON_CONCEPTS_CONTAINER_HH
9#if __has_include(<version>) && __has_include(<concepts>)
11 #if __cpp_concepts >= 201907L && __cpp_lib_concepts >= 202002L
12 #ifndef DUNE_ENABLE_CONCEPTS
13 #define DUNE_ENABLE_CONCEPTS 1
18#if DUNE_ENABLE_CONCEPTS
23#if __has_include(<ranges>)
61#if __has_include(<ranges>)
62 std::ranges::range<T> &&
64requires(T a,
const T ca)
66 typename T::value_type;
67 requires std::unsigned_integral<typename T::size_type>;
68 requires std::forward_iterator<typename T::iterator>;
69 requires std::forward_iterator<typename T::const_iterator>;
70 { a.begin() } -> std::same_as<typename T::iterator>;
71 { a.end() } -> std::same_as<typename T::iterator>;
72 { ca.begin() } -> std::same_as<typename T::const_iterator>;
73 { ca.end() } -> std::same_as<typename T::const_iterator>;
74 { a.cbegin() } -> std::same_as<typename T::const_iterator>;
75 { a.cend() } -> std::same_as<typename T::const_iterator>;
76 { a.size() } -> std::same_as<typename T::size_type>;
77 { a.max_size() } -> std::same_as<typename T::size_type>;
78 { a.empty() } -> std::convertible_to<bool>;
104concept RandomAccessContainer =
106#if __has_include(<ranges>)
107 std::ranges::random_access_range<T> &&
109requires(T a,
const T ca,
typename T::size_type i)
111 requires std::same_as<typename T::reference, typename T::value_type&>;
112 requires std::same_as<typename T::const_reference, const typename T::value_type&>;
113 requires std::random_access_iterator<typename T::iterator>;
114 requires std::random_access_iterator<typename T::const_iterator>;
115 { a[i] } -> std::same_as<typename T::reference>;
116 { ca[i] } -> std::same_as<typename T::const_reference>;
Namespace for concepts.
Definition: concept.hh:34