1/*************************************************************************/
2/* */
3/* Language Technologies Institute */
4/* Carnegie Mellon University */
5/* Copyright (c) 1999 */
6/* All Rights Reserved. */
7/* */
8/* Permission is hereby granted, free of charge, to use and distribute */
9/* this software and its documentation without restriction, including */
10/* without limitation the rights to use, copy, modify, merge, publish, */
11/* distribute, sublicense, and/or sell copies of this work, and to */
12/* permit persons to whom this work is furnished to do so, subject to */
13/* the following conditions: */
14/* 1. The code must retain the above copyright notice, this list of */
15/* conditions and the following disclaimer. */
16/* 2. Any modifications must be clearly marked as such. */
17/* 3. Original authors' names are not deleted. */
18/* 4. The authors' names are not used to endorse or promote products */
19/* derived from this software without specific prior written */
20/* permission. */
21/* */
22/* CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK */
23/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
24/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
25/* SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE */
26/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
27/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
28/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
29/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
30/* THIS SOFTWARE. */
31/* */
32/*************************************************************************/
33/* Author: Alan W Black (awb@cs.cmu.edu) */
34/* Date: August 2000 */
35/*************************************************************************/
36/* */
37/* endianness */
38/* */
39/*************************************************************************/
40#ifndef __CST_ENDIAN_H__
41#define __CST_ENDIAN_H__
42
43/* This gets set to 1 and we test where the on bit is to determine byteorder */
44extern const int cst_endian_loc;
45/* Sun, HP, SGI Mips, M68000, PowerPC, MIPS24K AR9331 (Yun Arduino, ZSun) */
46#define CST_BIG_ENDIAN (((char *)&cst_endian_loc)[0] == 0)
47/* Intel, Alpha, DEC Mips, Vax, ARM, Other MIPS (GCW-Zero, Ben Nanonote etc) */
48#define CST_LITTLE_ENDIAN (((char *)&cst_endian_loc)[0] != 0)
49/* Perq (from Three Rivers) has a third byte order -- but we have no support */
50
51/* EST byte order strings */
52#define BYTE_ORDER_BIG "10"
53#define BYTE_ORDER_LITTLE "01"
54
55#define SWAPINT(x) ((((unsigned int)x) & 0xff) << 24 | \
56 (((unsigned int)x) & 0xff00) << 8 | \
57 (((unsigned int)x) & 0xff0000) >> 8 | \
58 (((unsigned int)x) & 0xff000000) >> 24)
59/* For m68k we want to be a little more explicit */
60#define SWAPLONG(x) ((((unsigned long)x) & 0xff) << 24 | \
61 (((unsigned long)x) & 0xff00) << 8 | \
62 (((unsigned long)x) & 0xff0000) >> 8 | \
63 (((unsigned long)x) & 0xff000000) >> 24)
64#define SWAPSHORT(x) ((((unsigned short)x) & 0xff) << 8 | \
65 (((unsigned short)x) & 0xff00) >> 8)
66
67void swap_bytes_short(short * b,int n);
68
69void swapdouble(double *d);
70void swapfloat(float *f);
71
72#endif
73

source code of include/flite/cst_endian.h