https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100919
Bug ID: 100919
Summary: multiple -Wdeprecated-declarations on a call to a
deprecated member function pointer
Product: gcc
Version: 11.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
The test case below shows that G++ issues three identical warnings for a single
call to function through a member pointer (both with [[deprecated]] or
__attribute__ ((deprecated))). It should issue one one warning, same as for
direct calls.
$ cat t.C && gcc -S -Wall t.C
struct A
{
[[deprecated]] int f ();
[[deprecated]] int (*pf) ();
};
void f (A *p)
{
p->f (); // one warning (good)
}
void g (A *p)
{
p->pf (); // three warnings (bug)
}
t.C: In function ‘void f(A*)’:
t.C:9:8: warning: ‘int A::f()’ is deprecated [-Wdeprecated-declarations]
9 | p->f (); // one warning (good)
| ~~~~~^~
t.C:3:22: note: declared here
3 | [[deprecated]] int f ();
| ^
t.C: In function ‘void g(A*)’:
t.C:14:6: warning: ‘A::pf’ is deprecated [-Wdeprecated-declarations]
14 | p->pf (); // three warnings (bug)
| ^~
t.C:4:24: note: declared here
4 | [[deprecated]] int (*pf) ();
| ^~
t.C:14:6: warning: ‘A::pf’ is deprecated [-Wdeprecated-declarations]
14 | p->pf (); // three warnings (bug)
| ^~
t.C:4:24: note: declared here
4 | [[deprecated]] int (*pf) ();
| ^~
t.C:14:6: warning: ‘A::pf’ is deprecated [-Wdeprecated-declarations]
14 | p->pf (); // three warnings (bug)
| ^~
t.C:4:24: note: declared here
4 | [[deprecated]] int (*pf) ();
| ^~
