split_view models the conceptsforward_range, andcommon_range when the underlyingviewV models respective concepts.

The inner range (ranges::range_reference_t<split_view>) is aranges::subrange<ranges::iterator_t<V>>, which modelscommon_range, modelssized_range whenranges::iterator_t<V> modelsstd::sized_sentinel_for<ranges::iterator_t<V>>, and modelscontiguous_range,random_access_range,bidirectional_range, andforward_range whenV models respective concepts.

Unlikelazy_split_view,split_view maintains the continuity of the subrange, making it suitable for string splitting.

[edit]Data members

[edit]Member functions

[edit]Nested classes

[edit]Deduction guides

[edit]Notes

BeforeP2210R2,split_view used alazy mechanism for splitting, and thus could not keep the bidirectional, random access, or contiguous properties of the underlying view, or make the iterator type of the inner range same as that of the underlying view. Consequently, it is redesigned byP2210R2, and the lazy mechanism is moved tolazy_split_view.

The delimiterpattern generally should not be an ordinary string literal, as it will consider the null terminator to be necessary part of the delimiter; therefore, it is advisable to use astd::string_view literal instead.

[edit]Example

#include <iomanip>#include <iostream>#include <ranges>#include <string_view> int main(){using std::operator""sv;constexprauto words{"Hello^_^C++^_^20^_^!"sv};constexprauto delim{"^_^"sv}; for(constauto word: std::views::split(words, delim))// with string_view's C++23 range constructor:std::cout<<std::quoted(std::string_view(word))<<' ';std::cout<<'\n';}

"Hello" "C++" "20" "!"

[edit]Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

[edit]See also

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