strdiff - locate first difference between two strings

       Lars Wirzenius (lars.wirzenius@helsinki.fi)

Publib                                        C Programmer's Manual                                STRDIFF(3pub)

strdiff  finds the first character from the beginning that is different in the two strings str1 and str2.
       The terminating zero characters are considered different.

       strdiff - locate first difference between two strings

strdiff returns a the offset of the first pair of differring characters (or the offset of the first  zero
       character it finds).

publib(3), string(3), strcmp(3)

       #include <publib.h>
       size_t strdiff(const char *str1, const char *str2);