std::experimental::ranges:: View

The concept View<T> specifies the semiregular range T has constant-time copy, move, and assignment operations.

The /* view-predicate<T> */ portion of the concept is determined as follows:

• if the qualified-id ranges:: enable_view < T > :: type is valid and denotes a type, ranges:: enable_view < T > :: type :: value ;
• otherwise, if std:: is_base_of_v < ranges:: view_base , T > is true , true ;
• otherwise, if T is a specialization of std::initializer_list , std::set , std::multiset , std::unordered_set , or std::unordered_multiset , false ;
• otherwise, if both T and const T satisfy Range and ranges :: reference_t < ranges:: iterator_t < T >> is not the same type as ranges :: reference_t < ranges:: iterator_t < const T >> , false ;
• otherwise, true .