This is mem.c in view mode; [Download] [Up]
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Chris Torek.
*
* Redistribution and use in source and binary forms are permitted
* provided that: (1) source distributions retain this entire copyright
* notice and comment, and (2) distributions including binaries display
* the following acknowledgement: ``This product includes software
* developed by the University of California, Berkeley and its contributors''
* in the documentation or other materials provided with the distribution
* and in all advertising materials mentioning features or use of this
* software. Neither the name of the University nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)memcmp.c 5.5 (Berkeley) 5/15/90";
static char sccsid[] = "@(#)memcpy.c 5.6 (Berkeley) 5/15/90";
static char sccsid[] = "@(#)memmove.c 5.2 (Berkeley) 5/15/90";
static char sccsid[] = "@(#)memset.c 5.5 (Berkeley) 5/15/90";
#endif /* LIBC_SCCS and not lint */
#ifndef __STDC__
#define const
#endif
typedef int size_t;
/*
* Compare memory regions.
*/
int
memcmp(s1, s2, n)
const void *s1, *s2;
size_t n;
{
if (n != 0) {
register const unsigned char *p1 = (unsigned char *)s1,
*p2 = (unsigned char *)s2;
do {
if (*p1++ != *p2++)
return (*--p1 - *--p2);
} while (--n != 0);
}
return (0);
}
/*
* Copy a block of memory.
*/
void *
memcpy(dst, src, n)
void *dst;
const void *src;
size_t n;
{
bcopy((const char *)src, (char *)dst, n);
return(dst);
}
/*
* Copy a block of memory, handling overlap.
*/
void *
memmove(dst, src, length)
void *dst;
const void *src;
register size_t length;
{
bcopy((const char *)src, (char *)dst, length);
return(dst);
}
void *
memset(dst, c, n)
void *dst;
register int c;
register size_t n;
{
if (n != 0) {
register char *d = (char *)dst;
do
*d++ = c;
while (--n != 0);
}
return (dst);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.