[Bug c/86668] mixing ansi prototype with K&R definition

[amrosalem820 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86668

--- Comment #5 from amr <amrosalem820 at gmail dot com> ---
I know all these rules , I mean he said the prototype in scope ,, he means
inside main or outside in my example