.TH str_diff 3 .SH NAME str_diff \- compare two ASCIIZ strings .SH SYNTAX .B #include int \fBstr_diff\fP(const char* \fIa\fR,const char* \fIb\fR); .SH DESCRIPTION \fBstr_diff\fR returns negative, 0, or positive, depending on whether the string \fIa\fR[0], \fIa\fR[1], ..., \fIa\fR[n]=='\\0' is lexicographically smaller than, equal to, or greater than the string \fIb\fR[0], \fIb\fR[1], ..., \fIb\fR[m-1]=='\\0'. If the strings are different, str_diff does not read bytes past the first difference. .SH "SEE ALSO" strlen(3)