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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/103901] A lambda with a new type in its body cannot be defined inside template parameter list Date: Tue, 04 Jan 2022 20:15:30 +0000 [thread overview] Message-ID: <bug-103901-4-q22MQA0N9h@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-103901-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103901 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org, | |jason at gcc dot gnu.org, | |ppalka at gcc dot gnu.org --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- If it is valid, I think e.g. --- gcc/cp/parser.c.jj 2022-01-04 09:59:37.297641779 +0100 +++ gcc/cp/parser.c 2022-01-04 20:56:19.065070397 +0100 @@ -11046,6 +11046,9 @@ cp_parser_lambda_expression (cp_parser* bool save_in_consteval_if_p = in_consteval_if_p; in_consteval_if_p = false; + int saved_processing_template_parmlist = processing_template_parmlist; + processing_template_parmlist = 0; + /* By virtue of defining a local class, a lambda expression has access to the private variables of enclosing classes. */ @@ -11078,6 +11081,7 @@ cp_parser_lambda_expression (cp_parser* in_consteval_if_p = save_in_consteval_if_p; in_discarded_stmt = discarded; + processing_template_parmlist = saved_processing_template_parmlist; parser->num_template_parameter_lists = saved_num_template_parameter_lists; parser->in_statement = in_statement; should fix that. But as the stack-overflow link says, it is unclear. Also, we still reject even with the above patch decltype ([]{ struct A {} ; return 1; }) a; (guess that is PR101911).
prev parent reply other threads:[~2022-01-04 20:15 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-01-04 8:35 [Bug c++/103901] New: " fchelnokov at gmail dot com 2022-01-04 18:37 ` [Bug c++/103901] " pinskia at gcc dot gnu.org 2022-01-04 18:38 ` pinskia at gcc dot gnu.org 2022-01-04 20:15 ` jakub at gcc dot gnu.org [this message]
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