https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98630
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
For goto crossing initialization, C++ makes it a hard error and C only has a
non-default warning (not even in -W), -Wjump-misses-init included in
-Wc++-compat.
As can be seen on:
int
foo (void)
{
goto a;
int b = 1;
a:
b++;
return b;
}
int
bar (void)
{
goto a;
{
int b = 1;
a:
b++;
return b;
}
}
int
baz (void)
{
{
int b = 1;
if (1)
;
else
{
a:
b++;
return b;
}
}
goto a;
}
with g++ or gcc -Wjump-misses-init
