[Bug c/125261] _Generic -Wuseless-cast false positive

[uecker at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125261

--- Comment #9 from uecker at gcc dot gnu.org ---
Created attachment 64436
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64436&action=edit
patch

here is what I have in mind