std::ranges::common_range(3) C++ Standard Libary std::ranges::common_range(3) NAME std::ranges::common_range - std::ranges::common_range Synopsis Defined in header <ranges> template< class T > concept common_range = (since C++20) ranges::range<T> && std::same_as<ranges::iterator_t<T>, ranges::sentinel_t<T>>; The common_range concept is a refinement of range for which std::ranges::begin() and std::ranges::end() return the same type (e.g. all standard library con- tainers). Example // Run this code #include <ranges> struct A { char* begin(); char* end(); }; static_assert( std::ranges::common_range<A> ); struct B { char* begin(); bool end(); }; // not a common_range: begin/end have different types static_assert( not std::ranges::common_range<B> ); struct C { char* begin(); }; // not a common_range, not even a range: has no end() static_assert( not std::ranges::common_range<C> ); int main() { } See also ranges::common_view converts a view into a common_range views::common (class template) (range adaptor object) (C++20) http://cppreference.com 2024.06.10 std::ranges::common_range(3)
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