https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91936
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- The exp function is provided by your C library, not by GCC.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91936
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- The exp function is provided by your C library, not by GCC.