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From: "pdimov at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/113099] locale without RTTI uses dynamic_cast before gcc 13.2 or has ODR violation since gcc 13.2 Date: Sun, 24 Dec 2023 15:04:38 +0000 [thread overview] Message-ID: <bug-113099-4-b378mdrELQ@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-113099-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113099 --- Comment #7 from Peter Dimov <pdimov at gmail dot com> --- You don't necessarily need dynamic_cast because facets are always installed and obtained by their exact type, not via a reference to base. You can store the Facet* as given (like shared_ptr does), and return it. The only reason dynamic_cast is needed here is because you can't static_cast from facet* to Facet* when virtual inheritance. But you are not required to store facet* in the actual container; you can store the original Facet* as void*.
next prev parent reply other threads:[~2023-12-24 15:04 UTC|newest] Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-12-20 23:41 [Bug libstdc++/113099] New: " andysem at mail dot ru 2023-12-21 8:59 ` [Bug libstdc++/113099] " rguenth at gcc dot gnu.org 2023-12-21 21:49 ` redi at gcc dot gnu.org 2023-12-23 9:37 ` andysem at mail dot ru 2023-12-23 9:39 ` andysem at mail dot ru 2023-12-24 14:44 ` redi at gcc dot gnu.org 2023-12-24 14:46 ` redi at gcc dot gnu.org 2023-12-24 15:04 ` pdimov at gmail dot com [this message] 2023-12-24 15:27 ` redi at gcc dot gnu.org 2023-12-24 15:30 ` redi at gcc dot gnu.org 2023-12-24 15:40 ` pdimov at gmail dot com 2023-12-24 16:22 ` andysem at mail dot ru 2023-12-26 12:31 ` redi at gcc dot gnu.org 2023-12-26 15:20 ` andysem at mail dot ru 2024-01-03 12:38 ` redi at gcc dot gnu.org 2024-01-03 12:43 ` redi at gcc dot gnu.org 2024-01-05 10:23 ` cvs-commit at gcc dot gnu.org
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