2.11BSD#431 - /usr/src/lib/libc/gen/bcopy.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #if defined(LIBC_SCCS) && !defined(lint)
   8: static char sccsid[] = "@(#)bcopy.c	1.1 (Berkeley) 1/19/87";
   9: #endif LIBC_SCCS and not lint
  10: 
  11: /*
  12:  * bcopy -- vax movc3 instruction
  13:  */
  14: bcopy(src, dst, length)
  15:     register char *src, *dst;
  16:     register unsigned int length;
  17: {
  18:     if (length && src != dst)
  19:         if (dst < src)
  20:             do
  21:                 *dst++ = *src++;
  22:             while (--length);
  23:         else {          /* copy backwards */
  24:             src += length;
  25:             dst += length;
  26:             do
  27:                 *--dst = *--src;
  28:             while (--length);
  29:         }
  30:     return(0);
  31: }

Defined functions

Defined variables