https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65323
Bug ID: 65323
Summary: -Wzero-as-null-pointer-constant stutters
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: akim.demaille at gmail dot com
While tracking a spurious warning about at 0 instead of nullptr, I stumbled on
the following case, where g++ is spitting its warning too many times (4.9 and
5).
struct foo
{
foo(void* = 0) {}
void fun(void* = 0) {}
void* p = 0;
};
int main()
{
foo f;
f.fun();
}
g++-mp-5 -std=c++14 -Wzero-as-null-pointer-constant foo.cc
foo.cc:3:15: warning: zero as null pointer constant
[-Wzero-as-null-pointer-constant]
foo(void* = 0) {}
^
foo.cc:3:15: warning: zero as null pointer constant
[-Wzero-as-null-pointer-constant]
foo.cc:4:20: warning: zero as null pointer constant
[-Wzero-as-null-pointer-constant]
void fun(void* = 0) {}
^
foo.cc:4:20: warning: zero as null pointer constant
[-Wzero-as-null-pointer-constant]
foo.cc:5:13: warning: zero as null pointer constant
[-Wzero-as-null-pointer-constant]
void* p = 0;
^
