1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #if defined(LIBC_SCCS) && !defined(lint) 9 static char sccsid[] = "@(#)index.c 5.5 (Berkeley) 05/16/90"; 10 #endif /* LIBC_SCCS and not lint */ 11 12 #include <string.h> 13 #include <stddef.h> 14 15 char * 16 index(p, ch) 17 register char *p, ch; 18 { 19 for (;; ++p) { 20 if (*p == ch) 21 return(p); 22 if (!*p) 23 return((char *)NULL); 24 } 25 /* NOTREACHED */ 26 } 27