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* [Bug c++/114675] New: warning for "reference to not fully constructed object" @ 2024-04-10 9:15 Simon.Richter at hogyros dot de 2024-04-10 10:42 ` [Bug c++/114675] " redi at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: Simon.Richter at hogyros dot de @ 2024-04-10 9:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114675 Bug ID: 114675 Summary: warning for "reference to not fully constructed object" Product: gcc Version: 13.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: Simon.Richter at hogyros dot de Target Milestone: --- We have an object that contains several sub-objects that should reference each other through interface pointers. I'd like to make sure that interface pointers given to objects constructed later already point to initialized objects. So, for struct everything { everything() : a(), b(c), c(a) { } A a; B b; C c; }; I'm passing a reference to the not-yet-constructed C object to B's constructor, so this is unsafe despite being legal C++. I wonder if it would be possible to generate a warning here. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/114675] warning for "reference to not fully constructed object" 2024-04-10 9:15 [Bug c++/114675] New: warning for "reference to not fully constructed object" Simon.Richter at hogyros dot de @ 2024-04-10 10:42 ` redi at gcc dot gnu.org 2024-04-10 11:14 ` pinskia at gcc dot gnu.org 2024-04-10 12:12 ` redi at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2024-04-10 10:42 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114675 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- A complete testcase that actually compiles: struct A { }; struct C { C(const A&); }; struct B { B(const C&); }; struct everything { everything() : a(), b(c), c(a) { } A a; B b; C c; }; ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/114675] warning for "reference to not fully constructed object" 2024-04-10 9:15 [Bug c++/114675] New: warning for "reference to not fully constructed object" Simon.Richter at hogyros dot de 2024-04-10 10:42 ` [Bug c++/114675] " redi at gcc dot gnu.org @ 2024-04-10 11:14 ` pinskia at gcc dot gnu.org 2024-04-10 12:12 ` redi at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2024-04-10 11:14 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114675 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2024-04-10 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Severity|normal |enhancement --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #1) > A complete testcase that actually compiles: > > struct A { }; > struct C { C(const A&); }; > struct B { B(const C&); }; > > struct everything { > everything() : a(), b(c), c(a) { } > > A a; > B b; > C c; > }; Confirmed. I thought I had saw another bug which was asking for the same thing but I can't seem to find it right now. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/114675] warning for "reference to not fully constructed object" 2024-04-10 9:15 [Bug c++/114675] New: warning for "reference to not fully constructed object" Simon.Richter at hogyros dot de 2024-04-10 10:42 ` [Bug c++/114675] " redi at gcc dot gnu.org 2024-04-10 11:14 ` pinskia at gcc dot gnu.org @ 2024-04-10 12:12 ` redi at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2024-04-10 12:12 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114675 --- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- Yeah I looked for a dup too, as I'm sure this has been reported before. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-04-10 12:12 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2024-04-10 9:15 [Bug c++/114675] New: warning for "reference to not fully constructed object" Simon.Richter at hogyros dot de 2024-04-10 10:42 ` [Bug c++/114675] " redi at gcc dot gnu.org 2024-04-10 11:14 ` pinskia at gcc dot gnu.org 2024-04-10 12:12 ` redi at gcc dot gnu.org
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