🚀 go-pugleaf

dbbergac@sanluis (Dave Bergacker) writes:

>int streq(const char *s1, const char *s2)
>{
>  if ( !*s1 || ( *s1 != *s2 )) return *s1 - *s2;
>  else streq(++s1,++s2);
>}

>Does ANSI specify anything about this behavior?

Yes.  The C Standard says the behavior is undefined.

>This code worked on Borlands TC (version unknown) and gcc version 2.2.2.

``Undefined'' means the implementation can do anything it pleases -- it
can even do what the programmer meant!  An implementation need not
diagnose this error.  But you should tell your students to use their
compilers' debugging options; e.g. `gcc -Wall' diagnoses this error.