https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100485
--- Comment #5 from fiesh at zefix dot tv ---
> extern "C" void free (void *);
>
> class Base
> {
> public:
> Base();
>
> void * operator new(unsigned long, const int &);
> void operator delete(void * ptr, const int &) {
> #pragma GCC diagnostic ignored "-Wmismatched-new-delete"
> free (ptr);
> }
> };
>
> void f()
> {
> new (0) Base;
> }
Alas, keeping the diagnostic ignore local by means of `diagnostic push` /
`diagnostic pop` makes it not work correctly, presumably since the warning is
generated at the call site. Making it global to everything including the
header file seems like a bad idea to me.
