1 /* @(#)rindex.c 4.1 (Berkeley) 12/21/80 */ 2 /* 3 * Return the ptr in sp at which the character c last 4 * appears; NULL if not found 5 */ 6 7 #define NULL 0 8 9 char * 10 rindex(sp, c) 11 register char *sp, c; 12 { 13 register char *r; 14 15 r = NULL; 16 do { 17 if (*sp == c) 18 r = sp; 19 } while (*sp++); 20 return(r); 21 } 22