https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105593
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Seems the difference between C and C++ is documented:
'-Winit-self (C, C++, Objective-C and Objective-C++ only)'
Warn about uninitialized variables that are initialized with
themselves. Note this option can only be used with the
'-Wuninitialized' option.
For example, GCC warns about 'i' being uninitialized in the
following snippet only when '-Winit-self' has been specified:
int f()
{
int i = i;
return i;
}
This warning is enabled by '-Wall' in C++.
We do emit the warning even in C with -W -Wall -Winit-self, and don't emit
it with -W -Wall -Wno-init-self in C++.
