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* [Bug c++/99730] New: gcc cannot choose the best overload resolution with constrained function
@ 2021-03-23 15:32 hewillk at gmail dot com
2021-03-23 16:14 ` [Bug c++/99730] " redi at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: hewillk at gmail dot com @ 2021-03-23 15:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99730
Bug ID: 99730
Summary: gcc cannot choose the best overload resolution with
constrained function
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: hewillk at gmail dot com
Target Milestone: ---
auto f(auto&&...) {}
auto f(auto...) requires true {}
int main() {
f();
}
gcc reject with:
<source>:5:5: error: call of overloaded 'f()' is ambiguous
5 | f();
| ^
https://godbolt.org/z/e8jas5frc
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/99730] gcc cannot choose the best overload resolution with constrained function 2021-03-23 15:32 [Bug c++/99730] New: gcc cannot choose the best overload resolution with constrained function hewillk at gmail dot com @ 2021-03-23 16:14 ` redi at gcc dot gnu.org 2021-03-23 16:43 ` redi at gcc dot gnu.org 2021-03-23 17:15 ` hewillk at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2021-03-23 16:14 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99730 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- Constraints are only used as a tie-breaker for equivalent overloads. These overloads are not the same. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/99730] gcc cannot choose the best overload resolution with constrained function 2021-03-23 15:32 [Bug c++/99730] New: gcc cannot choose the best overload resolution with constrained function hewillk at gmail dot com 2021-03-23 16:14 ` [Bug c++/99730] " redi at gcc dot gnu.org @ 2021-03-23 16:43 ` redi at gcc dot gnu.org 2021-03-23 17:15 ` hewillk at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2021-03-23 16:43 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99730 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- See https://wg21.link/p2113 which was implemented in r11-1571 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/99730] gcc cannot choose the best overload resolution with constrained function 2021-03-23 15:32 [Bug c++/99730] New: gcc cannot choose the best overload resolution with constrained function hewillk at gmail dot com 2021-03-23 16:14 ` [Bug c++/99730] " redi at gcc dot gnu.org 2021-03-23 16:43 ` redi at gcc dot gnu.org @ 2021-03-23 17:15 ` hewillk at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: hewillk at gmail dot com @ 2021-03-23 17:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99730 --- Comment #3 from 康桓瑋 <hewillk at gmail dot com> --- Really appreciate your reply and explanation. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-03-23 17:15 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-03-23 15:32 [Bug c++/99730] New: gcc cannot choose the best overload resolution with constrained function hewillk at gmail dot com 2021-03-23 16:14 ` [Bug c++/99730] " redi at gcc dot gnu.org 2021-03-23 16:43 ` redi at gcc dot gnu.org 2021-03-23 17:15 ` hewillk at gmail dot com
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