-/* Copyright (C) 1991, 1993, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1993, 1995, 1997, 1998, 2003, 2006 Free Software
+ Foundation, Inc.
+
Contributed by Torbjorn Granlund (tege@sics.se).
-NOTE: The canonical source of this file is maintained with the GNU C Library.
-Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+ NOTE: The canonical source of this file is maintained with the GNU C Library.
+ Bugs can be reported to bug-glibc@prep.ai.mit.edu.
-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, or (at your option) any
-later version.
+ 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 3 of the License, or 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.
+ 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. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#ifdef HAVE_CONFIG_H
-#include "config.h"
+#ifndef _LIBC
+# include <config.h>
#endif
-#undef __ptr_t
-#if defined (__cplusplus) || (defined (__STDC__) && __STDC__)
-#define __ptr_t void *
-#else /* Not C++ or ANSI C. */
-#undef const
-#define const
-#define __ptr_t char *
-#endif /* C++ or ANSI C. */
-
-#if defined (HAVE_STRING_H) || defined (_LIBC)
#include <string.h>
-#endif
+
+#undef memcmp
#ifdef _LIBC
-#include <memcopy.h>
+# include <memcopy.h>
+# include <endian.h>
+
+# if __BYTE_ORDER == __BIG_ENDIAN
+# define WORDS_BIGENDIAN
+# endif
#else /* Not in the GNU C library. */
-#include <sys/types.h>
+# include <sys/types.h>
/* Type to use for aligned memory operations.
This should normally be the biggest type supported by a single load
and store. Must be an unsigned type. */
-#define op_t unsigned long int
-#define OPSIZ (sizeof(op_t))
+# define op_t unsigned long int
+# define OPSIZ (sizeof(op_t))
/* Threshold value for when to enter the unrolled loops. */
-#define OP_T_THRES 16
+# define OP_T_THRES 16
/* Type to use for unaligned operations. */
typedef unsigned char byte;
-#ifndef WORDS_BIGENDIAN
-#define MERGE(w0, sh_1, w1, sh_2) (((w0) >> (sh_1)) | ((w1) << (sh_2)))
-#else
-#define MERGE(w0, sh_1, w1, sh_2) (((w0) << (sh_1)) | ((w1) >> (sh_2)))
-#endif
+# ifndef WORDS_BIGENDIAN
+# define MERGE(w0, sh_1, w1, sh_2) (((w0) >> (sh_1)) | ((w1) << (sh_2)))
+# else
+# define MERGE(w0, sh_1, w1, sh_2) (((w0) << (sh_1)) | ((w1) >> (sh_2)))
+# endif
#endif /* In the GNU C library. */
#ifdef WORDS_BIGENDIAN
-#define CMP_LT_OR_GT(a, b) ((a) > (b) ? 1 : -1)
+# define CMP_LT_OR_GT(a, b) ((a) > (b) ? 1 : -1)
#else
-#define CMP_LT_OR_GT(a, b) memcmp_bytes ((a), (b))
+# define CMP_LT_OR_GT(a, b) memcmp_bytes ((a), (b))
#endif
/* BE VERY CAREFUL IF YOU CHANGE THIS CODE! */
/* memcmp_bytes -- Compare A and B bytewise in the byte order of the machine.
A and B are known to be different.
This is needed only on little-endian machines. */
-#ifdef __GNUC__
+
+# ifdef __GNUC__
__inline
-#endif
+# endif
static int
-memcmp_bytes (a, b)
- op_t a, b;
+memcmp_bytes (long unsigned int a, long unsigned int b)
{
long int srcp1 = (long int) &a;
long int srcp2 = (long int) &b;
__inline
#endif
static int
-memcmp_common_alignment (srcp1, srcp2, len)
- long int srcp1;
- long int srcp2;
- size_t len;
+memcmp_common_alignment (long int srcp1, long int srcp2, size_t len)
{
op_t a0, a1;
op_t b0, b1;
switch (len % 4)
{
+ default: /* Avoid warning about uninitialized local variables. */
case 2:
a0 = ((op_t *) srcp1)[0];
b0 = ((op_t *) srcp2)[0];
__inline
#endif
static int
-memcmp_not_common_alignment (srcp1, srcp2, len)
- long int srcp1;
- long int srcp2;
- size_t len;
+memcmp_not_common_alignment (long int srcp1, long int srcp2, size_t len)
{
op_t a0, a1, a2, a3;
op_t b0, b1, b2, b3;
switch (len % 4)
{
+ default: /* Avoid warning about uninitialized local variables. */
case 2:
a1 = ((op_t *) srcp1)[0];
a2 = ((op_t *) srcp1)[1];
}
int
-memcmp (s1, s2, len)
- const __ptr_t s1;
- const __ptr_t s2;
- size_t len;
+rpl_memcmp (const void *s1, const void *s2, size_t len)
{
op_t a0;
op_t b0;
}
#ifdef weak_alias
-#undef bcmp
+# undef bcmp
weak_alias (memcmp, bcmp)
#endif
-
-
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