File: memfill.c

package info (click to toggle)
libc-sparc 5.3.12-3
  • links: PTS
  • area: main
  • in suites: potato, slink
  • size: 17,608 kB
  • ctags: 44,718
  • sloc: ansic: 163,548; asm: 5,080; makefile: 3,340; lex: 521; sh: 439; yacc: 401; awk: 28
file content (40 lines) | stat: -rw-r--r-- 1,348 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/* memfill -- fill a block of memory with n bytes.
   For Intel 80x86, x>=3.
   Copyright (C) 1993 Free Software Foundation, Inc.
   Contributed by H.J. Lu (hlu@eecs.wsu.edu)

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

#include <ansidecl.h>
#include <string.h>

PTR
DEFUN(memfill, (dstpp, dstlen, srcpp, srclen),
      PTR dstpp AND size_t dstlen AND PTR srcpp AND size_t srclen)
{
  unsigned long int dstp = (unsigned long int) dstpp;

  if (!dstlen || !srclen) return dstpp;

  for (;dstlen >= srclen; dstlen -= srclen, dstp += srclen) {
    memcpy ((PTR) dstp, srcpp, srclen);
  }

  if (dstlen)
    memcpy ((PTR) dstp, srcpp, dstlen);

  return (dstpp);
}