cleanup includes, copyright

[unix-history] / usr / src / lib / libc / string / index.c

/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)index.c     5.5 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <string.h>
#include <stddef.h>

char *
index(p, ch)
       register char *p, ch;
{
       for (;; ++p) {
               if (*p == ch)
                       return(p);
               if (!*p)
                       return((char *)NULL);
       }
       /* NOTREACHED */
}