https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100006
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:e89055f90cff9fb6f565b9374e1ab74f805682fb commit r11-8103-ge89055f90cff9fb6f565b9374e1ab74f805682fb Author: Jason Merrill <ja...@redhat.com> Date: Fri Apr 9 16:43:50 2021 -0400 c++: pack in base-specifier in lambda [PR100006] Normally cp_parser_base_clause prevents unexpanded packs, but in a lambda check_for_bare_parameter_packs allows it. Then we weren't finding the pack when scanning the lambda body. This doesn't fix a valid variant like template <class... Ts> void sink (Ts&&...); template <class... Ts> void f() { sink ([] { struct S : Ts { }; }...); } int main() { f<int>(); } but that's a much bigger project. gcc/cp/ChangeLog: PR c++/100006 * pt.c (find_parameter_packs_r) [TAG_DEFN]: Look into bases. gcc/testsuite/ChangeLog: PR c++/100006 * g++.dg/cpp0x/lambda/lambda-variadic13.C: New test.
