libtimidity-0.2.7.tar.gz: .../timi_endian.h

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Member "libtimidity-0.2.7/src/timi_endian.h" (23 Aug 2019, 7240 Bytes) of package /linux/privat/libtimidity-0.2.7.tar.gz:

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1 /* libTiMidity is licensed under the terms of the GNU Lesser General 2 * Public License: see COPYING for details. 3 * 4 * Note that the included TiMidity source, based on timidity-0.2i, was 5 * originally licensed under the GPL, but the author extended it so it 6 * can also be used separately under the GNU LGPL or the Perl Artistic 7 * License: see the notice by Tuukka Toivonen as it appears on the web 8 * at http://ieee.uwaterloo.ca/sca/www.cgs.fi/tt/timidity/ . 9 */ 10 11 /* timi_endian.h -- endianness detection 12 * Copyright (C) 2007-2016 O.Sezer <sezero@users.sourceforge.net> 13 * 14 * This library is free software; you can redistribute it and/or modify it 15 * under the terms of the GNU Lesser General Public License as published by 16 * the Free Software Foundation; either version 2.1 of the License, or (at 17 * your option) any later version. 18 * 19 * This library is distributed in the hope that it will be useful, but 20 * WITHOUT ANY WARRANTY; without even the implied warranty of 21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 22 * General Public License for more details. 23 * 24 * You should have received a copy of the GNU Lesser General Public License 25 * along with this library; if not, write to the Free Software Foundation, 26 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 27 */ 28 29 #ifndef TIMI_ENDIAN_H 30 #define TIMI_ENDIAN_H 31 32 /* try the system headers first: with BSD and derivatives, 33 * sys/types.h can pull in the correct header and defs. */ 34 #if !defined __VBCC__ 35 #include <sys/types.h> 36 #endif 37 38 #if !defined(BYTE_ORDER) /* include more if it didn't work */ 39 40 # if defined(__linux__) || defined(__linux) 41 # include <endian.h> 42 # elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || \ 43 defined(__FreeBSD_kernel__) /* Debian GNU/kFreeBSD */ || \ 44 (defined(__APPLE__) && defined(__MACH__)) /* Mac OS X */ || \ 45 defined(__DragonFly__) 46 # include <machine/endian.h> 47 # elif defined(__sun) || defined(__svr4__) 48 # include <sys/byteorder.h> 49 # elif defined(_AIX) 50 # include <sys/machine.h> 51 # elif defined(sgi) 52 # include <sys/endian.h> 53 # elif defined(__MINGW32__) 54 # include <sys/param.h> 55 # elif defined(__DJGPP__) 56 # include <machine/endian.h> 57 # elif defined(__EMX__) 58 # include <machine/endian.h> 59 # elif defined(__OS2__) && defined(__WATCOMC__) 60 # include <machine/endian.h> 61 # elif defined(__MORPHOS__) 62 # include <machine/endian.h> 63 # elif defined(__amigaos__) && defined(__NEWLIB__) 64 # include <machine/endian.h> 65 # elif defined(__amigaos__) && defined(__CLIB2__) 66 # include <unistd.h> 67 # endif 68 69 #endif /* endian includes */ 70 71 72 /* alternative macro names: */ 73 #if defined(__BYTE_ORDER) && !defined(BYTE_ORDER) 74 #define BYTE_ORDER __BYTE_ORDER 75 #endif 76 #if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN) 77 #define LITTLE_ENDIAN __LITTLE_ENDIAN 78 #endif 79 #if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN) 80 #define BIG_ENDIAN __BIG_ENDIAN 81 #endif 82 83 /* new gcc and clang versions pre-define the following: */ 84 #if defined(__BYTE_ORDER__) && !defined(BYTE_ORDER) 85 #define BYTE_ORDER __BYTE_ORDER__ 86 #endif 87 #if defined(__ORDER_LITTLE_ENDIAN__) && !defined(LITTLE_ENDIAN) 88 #define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__ 89 #endif 90 #if defined(__ORDER_BIG_ENDIAN__) && !defined(BIG_ENDIAN) 91 #define BIG_ENDIAN __ORDER_BIG_ENDIAN__ 92 #endif 93 94 #if !defined(PDP_ENDIAN) 95 #if defined(__ORDER_PDP_ENDIAN__) 96 #define PDP_ENDIAN __ORDER_PDP_ENDIAN__ 97 #elif defined(__PDP_ENDIAN) 98 #define PDP_ENDIAN __PDP_ENDIAN 99 #else 100 #define PDP_ENDIAN 3412 101 #endif 102 #endif /* NUXI endian -- unsupported */ 103 104 #if defined(BYTE_ORDER) && defined(LITTLE_ENDIAN) && defined(BIG_ENDIAN) 105 106 # if (BYTE_ORDER != LITTLE_ENDIAN) && (BYTE_ORDER != BIG_ENDIAN) 107 # error "Unsupported endianness." 108 # endif 109 110 #else /* one of the definitions is mising. */ 111 112 # undef BYTE_ORDER 113 # undef LITTLE_ENDIAN 114 # undef BIG_ENDIAN 115 # define LITTLE_ENDIAN 1234 116 # define BIG_ENDIAN 4321 117 118 #endif /* byte order defs */ 119 120 121 #if !defined(BYTE_ORDER) /* good assumptions: */ 122 123 /* try the compiler-predefined endianness macros. 124 * Ref.: https://sf.net/p/predef/wiki/Endianness/ 125 */ 126 # if defined(__BIG_ENDIAN__) || defined(_BIG_ENDIAN) 127 # define BYTE_ORDER BIG_ENDIAN 128 129 # elif defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || \ 130 defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__) 131 # define BYTE_ORDER BIG_ENDIAN 132 133 # elif defined(__LITTLE_ENDIAN__) || defined(_LITTLE_ENDIAN) 134 # define BYTE_ORDER LITTLE_ENDIAN 135 136 # elif defined(__ARMEL__) || defined(__THUMBEL__) || defined(__AARCH64EL__) || \ 137 defined(_MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__) 138 # define BYTE_ORDER LITTLE_ENDIAN 139 140 /* assumptions based on OS and/or architecture macros. Some refs: 141 * predef/other/endian.h from the boost library 142 * http://labs.hoffmanlabs.com/node/544 143 * https://blogs.msdn.com/larryosterman/archive/2005/06/07/426334.aspx 144 */ 145 # elif defined(__i386) || defined(__i386__) || defined(__386__) || defined(_M_IX86) || defined(__I386__) 146 # define BYTE_ORDER LITTLE_ENDIAN /* any x86 */ 147 148 # elif defined(__amd64) || defined(__x86_64__) || defined(_M_X64) 149 # define BYTE_ORDER LITTLE_ENDIAN /* any x64 */ 150 151 # elif defined(__mc68000__) || defined(__M68K__) || defined(__m68k__) || defined(__MC68K__) 152 # define BYTE_ORDER BIG_ENDIAN /* Motorola 68k */ 153 154 # elif defined(__sun) || defined(__svr4__) /* solaris */ 155 # if defined(_LITTLE_ENDIAN) /* x86 */ 156 # define BYTE_ORDER LITTLE_ENDIAN 157 # elif defined(_BIG_ENDIAN) /* sparc */ 158 # define BYTE_ORDER BIG_ENDIAN 159 # endif 160 161 # elif defined(__hppa) || defined(__hppa__) 162 # define BYTE_ORDER BIG_ENDIAN /* PARISC */ 163 164 # elif defined(__sparc) || defined(__sparc__) 165 # define BYTE_ORDER BIG_ENDIAN /* SPARC -- cf. boost/predef/other/endian.h */ 166 167 # elif defined(__DJGPP__) || defined(__MSDOS__) || defined(__DOS__) || defined(_DOS) 168 # define BYTE_ORDER LITTLE_ENDIAN /* DOS */ 169 170 # elif defined(__OS2__) || defined(__EMX__) 171 # define BYTE_ORDER LITTLE_ENDIAN /* OS2 */ 172 173 # elif defined(_WIN32) || defined(__WIN32__) || defined(_WIN64) || defined(__NT__) || defined(_Windows) 174 # define BYTE_ORDER LITTLE_ENDIAN /* Windows */ 175 176 # endif 177 178 #endif /* good assumptions */ 179 180 181 #if !defined(BYTE_ORDER) /* [un]safe assumptions: */ 182 183 /* assumptions based on OS and/or architecture macros. 184 * proceed carefully: many of these are bi-endian CPUs. 185 */ 186 # if defined(__ppc__) || defined(__powerpc__) || defined(__POWERPC__) || defined(__PPC__) 187 # define BYTE_ORDER BIG_ENDIAN 188 189 # elif defined(__alpha__) || defined(__alpha) 190 # define BYTE_ORDER LITTLE_ENDIAN 191 192 # elif defined(__mips__) || defined(__MIPS__) 193 # define BYTE_ORDER BIG_ENDIAN 194 195 # endif 196 197 # if defined(BYTE_ORDER) && 0 /* change to 1 to for warnings */ 198 # if (BYTE_ORDER == LITTLE_ENDIAN) 199 # warning "Using LIL endian as a SAFE default." 200 # else /*(BYTE_ORDER == BIG_ENDIAN)*/ 201 # warning "Using BIG endian as a SAFE default." 202 # endif 203 # endif 204 205 #endif /* [un]safe assumptions */ 206 207 208 #if !defined(BYTE_ORDER) 209 # error Could not determine BYTE_ORDER 210 #endif 211 212 /* for autotools compatibility */ 213 #if (BYTE_ORDER == BIG_ENDIAN) && !defined(WORDS_BIGENDIAN) 214 # define WORDS_BIGENDIAN 1 215 #endif 216 #if (BYTE_ORDER != BIG_ENDIAN) && defined(WORDS_BIGENDIAN) 217 #error WORDS_BIGENDIAN defined for non-BIG_ENDIAN 218 #endif 219 220 #endif /* TIMI_ENDIAN_H */