[Bug c++/96570] Warnings desired for time_t to/from int coversions

[gccbmw at lsmod dot de via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96570

--- Comment #15 from Bernhard M. Wiedemann <gccbmw at lsmod dot de> ---
Created attachment 60843
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60843&action=edit
proposed testsuite