https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105061
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:7b5a2b6e4f78395962835790c6d4a3e27ab8d378 commit r11-9738-g7b5a2b6e4f78395962835790c6d4a3e27ab8d378 Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Mar 30 09:16:41 2022 +0200 c++: Fox template-introduction tentative parsing in class bodies clear colon_corrects_to_scope_p [PR105061] The concepts support (in particular template introductions from concepts TS) broke the following testcase, valid unnamed bitfields with dependent types (or even just typedefs) were diagnosed as typos (: instead of correct ::) in template introduction during their tentative parsing. The following patch fixes that by not doing this : to :: correction when member_p is true. 2022-03-30 Jakub Jelinek <ja...@redhat.com> PR c++/105061 * parser.c (cp_parser_template_introduction): If member_p, temporarily clear parser->colon_corrects_to_scope_p around tentative parsing of nested name specifier. * g++.dg/concepts/pr105061.C: New test. (cherry picked from commit 4f2795218a6ba6a7b7b9b18ca7a6e390661e1608)
