diff options
author | Markus Uhlin <markus@nifty-networks.net> | 2023-12-15 02:34:54 +0100 |
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committer | Markus Uhlin <markus@nifty-networks.net> | 2023-12-15 02:34:54 +0100 |
commit | 32ae15695143653f5438c97551fa6aab002fc856 (patch) | |
tree | 0f9329520925b3b1a82741de190e88438f8c1339 /FICS/memmove.c | |
parent | 9fa1f36fb2ddc5528d2661c2a3941cac749bdafc (diff) |
Deleted files
Diffstat (limited to 'FICS/memmove.c')
-rw-r--r-- | FICS/memmove.c | 120 |
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 +++ /dev/null @@ -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); -} |