mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-05 11:11:04 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/* Copyright (C) 1991, 1997 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <string.h>
|
|
#include <memcopy.h>
|
|
|
|
#undef memset
|
|
|
|
void *
|
|
memset (dstpp, c, len)
|
|
void *dstpp;
|
|
int c;
|
|
size_t len;
|
|
{
|
|
long int dstp = (long int) dstpp;
|
|
|
|
if (len >= 8)
|
|
{
|
|
size_t xlen;
|
|
op_t cccc;
|
|
|
|
cccc = (unsigned char) c;
|
|
cccc |= cccc << 8;
|
|
cccc |= cccc << 16;
|
|
if (OPSIZ > 4)
|
|
/* Do the shift in two steps to avoid warning if long has 32 bits. */
|
|
cccc |= (cccc << 16) << 16;
|
|
|
|
/* There are at least some bytes to set.
|
|
No need to test for LEN == 0 in this alignment loop. */
|
|
while (dstp % OPSIZ != 0)
|
|
{
|
|
((byte *) dstp)[0] = c;
|
|
dstp += 1;
|
|
len -= 1;
|
|
}
|
|
|
|
/* Write 8 `op_t' per iteration until less than 8 `op_t' remain. */
|
|
xlen = len / (OPSIZ * 8);
|
|
while (xlen > 0)
|
|
{
|
|
((op_t *) dstp)[0] = cccc;
|
|
((op_t *) dstp)[1] = cccc;
|
|
((op_t *) dstp)[2] = cccc;
|
|
((op_t *) dstp)[3] = cccc;
|
|
((op_t *) dstp)[4] = cccc;
|
|
((op_t *) dstp)[5] = cccc;
|
|
((op_t *) dstp)[6] = cccc;
|
|
((op_t *) dstp)[7] = cccc;
|
|
dstp += 8 * OPSIZ;
|
|
xlen -= 1;
|
|
}
|
|
len %= OPSIZ * 8;
|
|
|
|
/* Write 1 `op_t' per iteration until less than OPSIZ bytes remain. */
|
|
xlen = len / OPSIZ;
|
|
while (xlen > 0)
|
|
{
|
|
((op_t *) dstp)[0] = cccc;
|
|
dstp += OPSIZ;
|
|
xlen -= 1;
|
|
}
|
|
len %= OPSIZ;
|
|
}
|
|
|
|
/* Write the last few bytes. */
|
|
while (len > 0)
|
|
{
|
|
((byte *) dstp)[0] = c;
|
|
dstp += 1;
|
|
len -= 1;
|
|
}
|
|
|
|
return dstpp;
|
|
}
|