https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101799
Bug ID: 101799
Summary: Warning messages for PMF leak internal names like
::__pfn and ::__delta
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: slyfox at gcc dot gnu.org
Target Milestone: ---
Found when poked at https://gcc.gnu.org/PR101219. Might be related to
https://gcc.gnu.org/PR96989.
$ cat a.cc
struct S { void m(); };
bool f() {
void (S::*mp)();
return &S::m == mp; // use uninitialized
}
$ g++ -c -Wall a.cc
a.cc: In function 'bool f()':
a.cc:6:19: warning: 'mp.void (S::*)()::__pfn' is used uninitialized
[-Wuninitialized]
6 | return &S::m == mp; // use uninitialized
| ^~
a.cc:4:13: note: 'mp' declared here
4 | void (S::*mp)();
| ^~
a.cc:6:19: warning: 'mp.void (S::*)()::__delta' may be used uninitialized
[-Wmaybe-uninitialized]
6 | return &S::m == mp; // use uninitialized
| ^~
a.cc:4:13: note: 'mp' declared here
4 | void (S::*mp)();
| ^~
