https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115425
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2024-06-13
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Target Milestone|--- |13.4
CC| |mpolacek at gcc dot gnu.org
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r13-272-gdc6c96f0707aba:
commit dc6c96f0707aba6c2c94f41f3ccd0713381e372c
Author: Patrick Palka <ppa...@redhat.com>
Date: Tue May 10 11:52:21 2022 -0400
c++: Harden *_PACK_EXPANSION and *_ARGUMENT_PACK macros
I think the fix is just
--- a/gcc/cp/pt.cc
+++ b/gcc/cp/pt.cc
@@ -13748,6 +13748,8 @@ tsubst_pack_expansion (tree t, tree args,
tsubst_flags_t complain,
else
result = tsubst (pattern, args, complain, in_decl);
result = make_pack_expansion (result, complain);
+ if (result == error_mark_node)
+ return error_mark_node;
PACK_EXPANSION_LOCAL_P (result) = PACK_EXPANSION_LOCAL_P (t);
PACK_EXPANSION_SIZEOF_P (result) = PACK_EXPANSION_SIZEOF_P (t);
if (PACK_EXPANSION_AUTO_P (t))
