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-rw-r--r--FICS/memmove.c120
1 files changed, 0 insertions, 120 deletions
diff --git a/FICS/memmove.c b/FICS/memmove.c
deleted file mode 100644
index 7f2ee3a..0000000
--- a/FICS/memmove.c
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@@ -1,120 +0,0 @@
-/*-
- * Copyright (c) 1990, 1993
- * 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, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)bcopy.c 8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
-
-/* #include <sys/cdefs.h>
-*/
-#include <string.h>
-
-/*
- * sizeof(word) MUST BE A POWER OF TWO
- * SO THAT wmask BELOW IS ALL ONES
- */
-typedef int word; /* "word" used for optimal copy speed */
-
-#define wsize sizeof(word)
-#define wmask (wsize - 1)
-
-/*
- * Copy a block of memory, handling overlap.
- * This is the routine that actually implements
- * (the portable versions of) bcopy, memcpy, and memmove.
- */
-void *
- memmove(dst0, src0, length)
-void *dst0;
-const void *src0;
-register size_t length;
-{
- register char *dst = dst0;
- register const char *src = src0;
- register size_t t;
-
- if (length == 0 || dst == src)/* nothing to do */
- goto done;
-
- /* Macros: loop-t-times; and loop-t-times, t>0 */
-#define TLOOP(s) if (t) TLOOP1(s)
-#define TLOOP1(s) do { s; } while (--t)
-
- if ((unsigned long) dst < (unsigned long) src) {
- /* Copy forward. */
- t = (int) src; /* only need low bits */
- if ((t | (int) dst) & wmask) {
- /* Try to align operands. This cannot be done unless the low bits
- match. */
- if ((t ^ (int) dst) & wmask || length < wsize)
- t = length;
- else
- t = wsize - (t & wmask);
- length -= t;
- TLOOP1(*dst++ = *src++);
- }
- /* Copy whole words, then mop up any trailing bytes. */
- t = length / wsize;
- TLOOP(*(word *) dst = *(word *) src;
- src += wsize;
- dst += wsize);
- t = length & wmask;
- TLOOP(*dst++ = *src++);
- } else {
- /* Copy backwards. Otherwise essentially the same. Alignment works as
- before, except that it takes (t&wmask) bytes to align, not
- wsize-(t&wmask). */
- src += length;
- dst += length;
- t = (int) src;
- if ((t | (int) dst) & wmask) {
- if ((t ^ (int) dst) & wmask || length <= wsize)
- t = length;
- else
- t &= wmask;
- length -= t;
- TLOOP1(*--dst = *--src);
- }
- t = length / wsize;
- TLOOP(src -= wsize;
- dst -= wsize;
- *(word *) dst = *(word *) src);
- t = length & wmask;
- TLOOP(*--dst = *--src);
- }
-done:
- return (dst0);
-}