Return to rindex_.c CVS log

Up to [CSRG BSD Unix] / 42BSD / usr.lib / libF77

Annotation of 42BSD/usr.lib/libF77/rindex_.c, revision 1.1.1.1

1.1       root        1: /*
                      2: char id_rindex[] = "@(#)rindex_.c      1.2";
                      3:  *
                      4:  * find last occurrence of substring in string
                      5:  *
                      6:  * calling sequence:
                      7:  *     character*(*) substr, string
                      8:  *     indx = rindex (string, substr)
                      9:  * where:
                     10:  *     indx will be the index of the first character of the last occurence
                     11:  *     of substr in string, or zero if not found.
                     12:  */
                     13: 
                     14: long rindex_(str, substr, slen, sublen)
                     15: char *str, *substr; long slen, sublen;
                     16: {
                     17:        register char *p = str + (slen - sublen);
                     18: 
                     19:        while (p >= str)
                     20:                if (s_cmp(substr, p, sublen, slen) == 0)
                     21:                        return((long)(++p - str));
                     22:                else
                     23:                        p--;
                     24:        return(0L);
                     25: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.