debian man page for byte_diff

byte_diff(3)						     Library Functions Manual						      byte_diff(3)

NAME
       byte_diff - compare two strings

SYNTAX
       #include <byte.h>

       int byte_diff(const char *one,size_t len,const char *two);

DESCRIPTION
       byte_diff  returns  negative,  0, or positive, depending on whether the string one[0], one[1], ..., one[len-1] is lexicographically smaller
       than, equal to, or greater than the string one[0], one[1], ..., one[len-1].

       When the strings are different, byte_diff does not read bytes past the first difference.

SEE ALSO
       byte_equal(3)

																      byte_diff(3)