https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117783
--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:5274f490fa72830aafd278bc752145f1225b08e0 commit r16-3121-g5274f490fa72830aafd278bc752145f1225b08e0 Author: Jakub Jelinek <ja...@redhat.com> Date: Mon Aug 11 08:54:57 2025 +0200 c++: Implement mangling for structured binding packs [PR117783] On Wed, Aug 06, 2025 at 11:53:55AM -0700, Jason Merrill wrote: > The Clang mangling of the underlying variable seems fine, just mentioning > the bound names; we can't get mangling collisions between pack and non-pack > versions of the same name. > > But It looks like they use .N discriminators for the individual elements, > which is wrong because . is reserved for implementation details. But I'd > think it should be fine to use [<discriminator>] instead. If you want the whole structured bindings to be mangled normally as if the pack isn't a pack and the individual vars of the structured binding pack mangled as multiple occurrences of the named entities, the following patch does that. 2025-08-11 Jakub Jelinek <ja...@redhat.com> PR c++/117783 * decl.cc (cp_finish_decomp): Don't sorry on tuple static structured bindings with a pack, instead temporarily reset DECL_NAME of the individual vars in the pack to the name of the pack for cp_finish_decl time and force mangling. * g++.dg/cpp26/decomp19.C: Don't expect sorry on tuple static structured bindings with a pack. * g++.dg/cpp26/decomp26.C: New test.
