LibreOffice
LibreOffice 7.1 SDK C/C++ API Reference
endian.h
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1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#ifndef INCLUDED_OSL_ENDIAN_H
21#define INCLUDED_OSL_ENDIAN_H
22
23#include "sal/types.h"
24
25#ifdef __cplusplus
26extern "C" {
27#endif
28
32#if defined _WIN32
33# if defined _M_ALPHA || defined _M_AMD64 || defined _M_IX86 \
34 || defined _M_MRX000 || defined _M_PPC || defined _M_ARM64
35# define OSL_LITENDIAN
36# endif
37#elif defined ANDROID || defined LINUX || defined HAIKU
38# include <endian.h>
39# if __BYTE_ORDER == __LITTLE_ENDIAN
40# define OSL_LITENDIAN
41# elif __BYTE_ORDER == __BIG_ENDIAN
42# define OSL_BIGENDIAN
43# endif
44#elif defined IOS || defined MACOSX || defined NETBSD
45# include <machine/endian.h>
46# if BYTE_ORDER == LITTLE_ENDIAN
47# define OSL_LITENDIAN
48# elif BYTE_ORDER == BIG_ENDIAN
49# define OSL_BIGENDIAN
50# endif
51#elif defined FREEBSD
52# include <sys/param.h>
53# include <machine/endian.h>
54# if defined _LITTLE_ENDIAN
55# define OSL_LITENDIAN
56# elif defined _BIG_ENDIAN
57# define OSL_BIGENDIAN
58# endif
59#elif defined AIX
60# include <sys/machine.h>
61# if BYTE_ORDER == LITTLE_ENDIAN
62# define OSL_LITENDIAN
63# elif BYTE_ORDER == BIG_ENDIAN
64# define OSL_BIGENDIAN
65# endif
66#elif defined __sun
67# include <sys/isa_defs.h>
68# if defined _LITTLE_ENDIAN
69# define OSL_LITENDIAN
70# elif defined _BIG_ENDIAN
71# define OSL_BIGENDIAN
72# endif
73#else
74# error "Target platform not specified !"
75#endif
76#if defined OSL_LITENDIAN == defined OSL_BIGENDIAN
77# error undetermined endianness
78#endif
79
80
83#ifndef OSL_MAKEBYTE
84# define OSL_MAKEBYTE(nl, nh) ((sal_uInt8)(((nl) & 0x0F) | (((nh) & 0x0F) << 4)))
85#endif
86#ifndef OSL_LONIBBLE
87# define OSL_LONIBBLE(b) ((sal_uInt8)((b) & 0x0F))
88#endif
89#ifndef OSL_HINIBBLE
90# define OSL_HINIBBLE(b) ((sal_uInt8)(((b) >> 4) & 0x0F))
91#endif
92
93#ifndef OSL_MAKEWORD
94# define OSL_MAKEWORD(bl, bh) ((sal_uInt16)((sal_uInt16)((bl) & 0xFF) | (((sal_uInt16)(bh) & 0xFF) << 8)))
95#endif
96#ifndef OSL_LOBYTE
97# define OSL_LOBYTE(w) ((sal_uInt8)((sal_uInt16)(w) & 0xFF))
98#endif
99#ifndef OSL_HIBYTE
100# define OSL_HIBYTE(w) ((sal_uInt8)(((sal_uInt16)(w) >> 8) & 0xFF))
101#endif
102
103#ifndef OSL_MAKEDWORD
104# define OSL_MAKEDWORD(wl, wh) ((sal_uInt32)((wl) & 0xFFFF) | (((sal_uInt32)(wh) & 0xFFFF) << 16))
105#endif
106#ifndef OSL_LOWORD
107# define OSL_LOWORD(d) ((sal_uInt16)((sal_uInt32)(d) & 0xFFFF))
108#endif
109#ifndef OSL_HIWORD
110# define OSL_HIWORD(d) ((sal_uInt16)(((sal_uInt32)(d) >> 16) & 0xFFFF))
111#endif
112
113
116#ifdef OSL_BIGENDIAN
117#ifndef OSL_NETWORD
118# define OSL_NETWORD(w) (sal_uInt16)(w)
119#endif
120#ifndef OSL_NETDWORD
121# define OSL_NETDWORD(d) (sal_uInt32)(d)
122#endif
123#else /* OSL_LITENDIAN */
124#ifndef OSL_NETWORD
125# define OSL_NETWORD(w) OSL_MAKEWORD(OSL_HIBYTE(w),OSL_LOBYTE(w))
126#endif
127#ifndef OSL_NETDWORD
128# define OSL_NETDWORD(d) OSL_MAKEDWORD(OSL_NETWORD(OSL_HIWORD(d)),OSL_NETWORD(OSL_LOWORD(d)))
129#endif
130#endif /* OSL_BIGENDIAN */
131
132
135#ifndef OSL_SWAPWORD
136# define OSL_SWAPWORD(w) OSL_MAKEWORD(OSL_HIBYTE(w),OSL_LOBYTE(w))
137#endif
138#ifndef OSL_SWAPDWORD
139# define OSL_SWAPDWORD(d) OSL_MAKEDWORD(OSL_SWAPWORD(OSL_HIWORD(d)),OSL_SWAPWORD(OSL_LOWORD(d)))
140#endif
141
142
143#ifdef __cplusplus
144}
145#endif
146
147#endif // INCLUDED_OSL_ENDIAN_H
148
149/* vim:set shiftwidth=4 softtabstop=4 expandtab: */