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* [Bug c++/108744] New: error message when trying to use structured bindings in static member declaration could be cleaner
@ 2023-02-09 17:31 barry.revzin at gmail dot com
2023-02-09 17:35 ` [Bug c++/108744] " pinskia at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: barry.revzin at gmail dot com @ 2023-02-09 17:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108744
Bug ID: 108744
Summary: error message when trying to use structured bindings
in static member declaration could be cleaner
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: barry.revzin at gmail dot com
Target Milestone: ---
Consider:
struct X {
int i, j;
};
struct C {
static auto [a, b] = X{1, 2};
};
This is ill-formed, but the error is currently:
<source>:6:17: error: expected unqualified-id before '[' token
6 | static auto [a, b] = X{1, 2};
| ^
clang, in contrast, says:
<source>:6:17: error: decomposition declaration not permitted in this context
static auto [a, b] = X{1, 2};
^~~~~~
Which is a lot clearer. I think ideally the error states explicitly that
structured bindings can't be used in static data member declarations.
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/108744] error message when trying to use structured bindings in static member declaration could be cleaner 2023-02-09 17:31 [Bug c++/108744] New: error message when trying to use structured bindings in static member declaration could be cleaner barry.revzin at gmail dot com @ 2023-02-09 17:35 ` pinskia at gcc dot gnu.org 2023-02-09 17:56 ` mpolacek at gcc dot gnu.org 2023-02-09 18:28 ` barry.revzin at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-02-09 17:35 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108744 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Last reconfirmed| |2023-02-09 Status|UNCONFIRMED |NEW --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Confirmed. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/108744] error message when trying to use structured bindings in static member declaration could be cleaner 2023-02-09 17:31 [Bug c++/108744] New: error message when trying to use structured bindings in static member declaration could be cleaner barry.revzin at gmail dot com 2023-02-09 17:35 ` [Bug c++/108744] " pinskia at gcc dot gnu.org @ 2023-02-09 17:56 ` mpolacek at gcc dot gnu.org 2023-02-09 18:28 ` barry.revzin at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: mpolacek at gcc dot gnu.org @ 2023-02-09 17:56 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108744 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org --- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Looks like it doesn't even need to be static. Are structured bindings generally banned in data members? ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/108744] error message when trying to use structured bindings in static member declaration could be cleaner 2023-02-09 17:31 [Bug c++/108744] New: error message when trying to use structured bindings in static member declaration could be cleaner barry.revzin at gmail dot com 2023-02-09 17:35 ` [Bug c++/108744] " pinskia at gcc dot gnu.org 2023-02-09 17:56 ` mpolacek at gcc dot gnu.org @ 2023-02-09 18:28 ` barry.revzin at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: barry.revzin at gmail dot com @ 2023-02-09 18:28 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108744 --- Comment #3 from Barry Revzin <barry.revzin at gmail dot com> --- Yeah, they're banned in non-static data members also. But there, we just can't have any "auto" non-static data members, whereas you can have "auto" static data members (just not structured bindings). ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-02-09 18:28 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-02-09 17:31 [Bug c++/108744] New: error message when trying to use structured bindings in static member declaration could be cleaner barry.revzin at gmail dot com 2023-02-09 17:35 ` [Bug c++/108744] " pinskia at gcc dot gnu.org 2023-02-09 17:56 ` mpolacek at gcc dot gnu.org 2023-02-09 18:28 ` barry.revzin at gmail dot com
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