https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108260
Bug ID: 108260 Summary: __cpp_lib_ranges_zip feature test macro not defined while std::views::zip is supported Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: rhalbersma at gmail dot com Target Milestone: --- I'm a happy user of std::views::zip in gcc-latest but AFAICS the feature test macro __cpp_lib_ranges_zip is not yet defined, neither in <ranges>, <tuple>, <utility>, nor in <version>. This makes it hard #ifdedf my code on this feature. Just for my curiosity: is it generally the case that feature test macros are being added along with the feature completeness? Or should I condition my mixed C++20/C++23 code in another way?