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/* PSPP - computes sample statistics.
Copyright (C) 1997, 1998 Free Software Foundation, Inc.
Written by Ben Pfaff <blp@gnu.org>.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#include <stddef.h>
int memcmp ();
/* Finds the first NEEDLE of length NEEDLE_LEN in a HAYSTACK of length
HAYSTACK_LEN. Returns a pointer to the match or NULL on
failure. */
void *
memmem (const void *haystack, size_t haystack_len,
const void *needle, size_t needle_len)
{
size_t i;
if (needle_len > haystack_len)
return NULL;
for (i = 0; i <= haystack_len - needle_len; i++)
if (!memcmp (needle, &((const char *) haystack)[i], needle_len))
return (void *) (&((const char *) haystack)[i]);
return NULL;
}
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