https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69769
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Wolfgang Roehrl from comment #0) > The compiler accepts this programm despite of performing an arithmetic > operation on pointer to a function. Arithmetic on (non-atomic) function pointers is supported by GCC: https://gcc.gnu.org/onlinedocs/gcc/Pointer-Arith.html So this is consistent with the built-in types.
