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* [Bug c++/101982] New: function parameter should not accept auto as placeholder-type-specifier
@ 2021-08-19 15:02 nickhuang99 at hotmail dot com
2021-08-19 15:15 ` [Bug c++/101982] [7.5]function " redi at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: nickhuang99 at hotmail dot com @ 2021-08-19 15:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101982
Bug ID: 101982
Summary: function parameter should not accept auto as
placeholder-type-specifier
Product: gcc
Version: 7.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: nickhuang99 at hotmail dot com
Target Milestone: ---
GCC7.5 accepts *auto* as placeholder-type-specifier without error or warning.
Considering following code snippet is legal only with -std=c++20:
void f(auto i){}
GCC8.x and later gives warning which is at least not incorrect. As a contrast,
both clang (https://www.godbolt.org/z/9x6E5xrne) and
MSVC(https://www.godbolt.org/z/3hWPsrcqz) considers it is illegal without
-std=c++20 option which is compliant with spec:
warning: use of ‘auto’ in parameter declaration only available with
‘-fconcepts-ts’
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/101982] [7.5]function parameter should not accept auto as placeholder-type-specifier 2021-08-19 15:02 [Bug c++/101982] New: function parameter should not accept auto as placeholder-type-specifier nickhuang99 at hotmail dot com @ 2021-08-19 15:15 ` redi at gcc dot gnu.org 2021-08-19 15:17 ` redi at gcc dot gnu.org 2021-08-19 19:51 ` nickhuang99 at hotmail dot com 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2021-08-19 15:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101982 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- This is a GCC extension and accepted by design. GCC 7 has been unsupported for more than two years, so bugs that only affect 7.x and not newer versions are not going to get fixed. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/101982] [7.5]function parameter should not accept auto as placeholder-type-specifier 2021-08-19 15:02 [Bug c++/101982] New: function parameter should not accept auto as placeholder-type-specifier nickhuang99 at hotmail dot com 2021-08-19 15:15 ` [Bug c++/101982] [7.5]function " redi at gcc dot gnu.org @ 2021-08-19 15:17 ` redi at gcc dot gnu.org 2021-08-19 19:51 ` nickhuang99 at hotmail dot com 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2021-08-19 15:17 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101982 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #1) > GCC 7 has been unsupported for more than two years, Actually slightly less than two years (since November 2019). But it's still unsupported. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/101982] [7.5]function parameter should not accept auto as placeholder-type-specifier 2021-08-19 15:02 [Bug c++/101982] New: function parameter should not accept auto as placeholder-type-specifier nickhuang99 at hotmail dot com 2021-08-19 15:15 ` [Bug c++/101982] [7.5]function " redi at gcc dot gnu.org 2021-08-19 15:17 ` redi at gcc dot gnu.org @ 2021-08-19 19:51 ` nickhuang99 at hotmail dot com 2 siblings, 0 replies; 4+ messages in thread From: nickhuang99 at hotmail dot com @ 2021-08-19 19:51 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101982 --- Comment #3 from qingzhe huang <nickhuang99 at hotmail dot com> --- Thank you for clarifications! ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-08-19 19:51 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-08-19 15:02 [Bug c++/101982] New: function parameter should not accept auto as placeholder-type-specifier nickhuang99 at hotmail dot com 2021-08-19 15:15 ` [Bug c++/101982] [7.5]function " redi at gcc dot gnu.org 2021-08-19 15:17 ` redi at gcc dot gnu.org 2021-08-19 19:51 ` nickhuang99 at hotmail dot com
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