[Bug c/66425] (void) cast doesn't suppress __attribute__((warn_unused_result))

[jengelh at inai dot de via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66425

--- Comment #52 from Jan Engelhardt <jengelh at inai dot de> ---
>This is useful for functions where not checking the
>result is either a security problem or always a bug, such as
>'realloc'.

always? reall..y..oc?

  void *x = malloc(1);
  realloc(x, 0);