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From: "fchelnokov at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/103852] New: Alias template argument deduction is available in C++17 mode Date: Tue, 28 Dec 2021 18:37:56 +0000 [thread overview] Message-ID: <bug-103852-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103852 Bug ID: 103852 Summary: Alias template argument deduction is available in C++17 mode Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: fchelnokov at gmail dot com Target Milestone: --- This is a valid C++20 code: ``` #include <set> template<class Key, class Compare = std::less<Key>, class Allocator = std::allocator<Key>> using Set = std::set<Key, Compare, Allocator>; int main() { Set set2 = { 1, 2, 3 }; } ``` But in C++17 mode it shall be an error, since alias template argument deduction is not available there. Still GCC wrongly accepts the code in C++17 mode. Demo: https://gcc.godbolt.org/z/f5WbWdPqb Related discussion: https://stackoverflow.com/q/68768937/7325599
next reply other threads:[~2021-12-28 18:37 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-12-28 18:37 fchelnokov at gmail dot com [this message] 2021-12-28 21:37 ` [Bug c++/103852] [10/11/12 Regression] " pinskia at gcc dot gnu.org 2022-01-04 18:55 ` ppalka at gcc dot gnu.org 2022-01-18 13:57 ` rguenth at gcc dot gnu.org 2022-04-01 19:49 ` jason at gcc dot gnu.org 2022-04-04 14:44 ` cvs-commit at gcc dot gnu.org 2022-04-04 14:57 ` jason at gcc dot gnu.org 2022-04-05 16:30 ` cvs-commit at gcc dot gnu.org 2022-04-05 16:33 ` jason at gcc dot gnu.org
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