debian man page for str_diff

str_diff(3)						     Library Functions Manual						       str_diff(3)

NAME
       str_diff - compare two ASCIIZ strings

SYNTAX
       #include <str.h>

       int str_diff(const char* a,const char* b);

DESCRIPTION
       str_diff  returns  negative, 0, or positive, depending on whether the string a[0], a[1], ..., a[n]=='' is lexicographically smaller than,
       equal to, or greater than the string b[0], b[1], ..., b[m-1]==''.

       If the strings are different, str_diff does not read bytes past the first difference.

SEE ALSO
       strlen(3)

																       str_diff(3)