[Bug c++/78130] Strict overflow warning appears to be invalid

[rianquinn at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78130

--- Comment #3 from Rian Quinn <rianquinn at gmail dot com> ---
Created attachment 39908
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39908&action=edit
ii and s file