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| -1:000000000000 | 0:9ff14f00fe58 |
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| 1 /* | |
| 2 ****************************************************************************** | |
| 3 * | |
| 4 * Copyright (C) 1997-2013, International Business Machines | |
| 5 * Corporation and others. All Rights Reserved. | |
| 6 * | |
| 7 ****************************************************************************** | |
| 8 * | |
| 9 * FILE NAME : platform.h | |
| 10 * | |
| 11 * Date Name Description | |
| 12 * 05/13/98 nos Creation (content moved here from ptypes.h). | |
| 13 * 03/02/99 stephen Added AS400 support. | |
| 14 * 03/30/99 stephen Added Linux support. | |
| 15 * 04/13/99 stephen Reworked for autoconf. | |
| 16 ****************************************************************************** | |
| 17 */ | |
| 18 | |
| 19 #ifndef _PLATFORM_H | |
| 20 #define _PLATFORM_H | |
| 21 | |
| 22 #include "unicode/uconfig.h" | |
| 23 #include "unicode/uvernum.h" | |
| 24 | |
| 25 /** | |
| 26 * \file | |
| 27 * \brief Basic types for the platform. | |
| 28 * | |
| 29 * This file used to be generated by autoconf/configure. | |
| 30 * Starting with ICU 49, platform.h is a normal source file, | |
| 31 * to simplify cross-compiling and working with non-autoconf/make build systems. | |
| 32 * | |
| 33 * When a value in this file does not work on a platform, then please | |
| 34 * try to derive it from the U_PLATFORM value | |
| 35 * (for which we might need a new value constant in rare cases) | |
| 36 * and/or from other macros that are predefined by the compiler | |
| 37 * or defined in standard (POSIX or platform or compiler) headers. | |
| 38 * | |
| 39 * As a temporary workaround, you can add an explicit <code>#define</code> for some macros | |
| 40 * before it is first tested, or add an equivalent -D macro definition | |
| 41 * to the compiler's command line. | |
| 42 * | |
| 43 * Note: Some compilers provide ways to show the predefined macros. | |
| 44 * For example, with gcc you can compile an empty .c file and have the compiler | |
| 45 * print the predefined macros with | |
| 46 * \code | |
| 47 * gcc -E -dM -x c /dev/null | sort | |
| 48 * \endcode | |
| 49 * (You can provide an actual empty .c file rather than /dev/null. | |
| 50 * <code>-x c++</code> is for C++.) | |
| 51 */ | |
| 52 | |
| 53 /** | |
| 54 * Define some things so that they can be documented. | |
| 55 * @internal | |
| 56 */ | |
| 57 #ifdef U_IN_DOXYGEN | |
| 58 /* | |
| 59 * Problem: "platform.h:335: warning: documentation for unknown define U_HAVE_STD_STRING found." means that U_HAVE_STD_STRING is not documented. | |
| 60 * Solution: #define any defines for non @internal API here, so that they are visible in the docs. If you just set PREDEFINED in Doxyfile.in, they won't be documented. | |
| 61 */ | |
| 62 | |
| 63 /* None for now. */ | |
| 64 #endif | |
| 65 | |
| 66 /** | |
| 67 * \def U_PLATFORM | |
| 68 * The U_PLATFORM macro defines the platform we're on. | |
| 69 * | |
| 70 * We used to define one different, value-less macro per platform. | |
| 71 * That made it hard to know the set of relevant platforms and macros, | |
| 72 * and hard to deal with variants of platforms. | |
| 73 * | |
| 74 * Starting with ICU 49, we define platforms as numeric macros, | |
| 75 * with ranges of values for related platforms and their variants. | |
| 76 * The U_PLATFORM macro is set to one of these values. | |
| 77 * | |
| 78 * Historical note from the Solaris Wikipedia article: | |
| 79 * AT&T and Sun collaborated on a project to merge the most popular Unix variants | |
| 80 * on the market at that time: BSD, System V, and Xenix. | |
| 81 * This became Unix System V Release 4 (SVR4). | |
| 82 * | |
| 83 * @internal | |
| 84 */ | |
| 85 | |
| 86 /** Unknown platform. @internal */ | |
| 87 #define U_PF_UNKNOWN 0 | |
| 88 /** Windows @internal */ | |
| 89 #define U_PF_WINDOWS 1000 | |
| 90 /** MinGW. Windows, calls to Win32 API, but using GNU gcc and binutils. @internal */ | |
| 91 #define U_PF_MINGW 1800 | |
| 92 /** | |
| 93 * Cygwin. Windows, calls to cygwin1.dll for Posix functions, | |
| 94 * using MSVC or GNU gcc and binutils. | |
| 95 * @internal | |
| 96 */ | |
| 97 #define U_PF_CYGWIN 1900 | |
| 98 /* Reserve 2000 for U_PF_UNIX? */ | |
| 99 /** HP-UX is based on UNIX System V. @internal */ | |
| 100 #define U_PF_HPUX 2100 | |
| 101 /** Solaris is a Unix operating system based on SVR4. @internal */ | |
| 102 #define U_PF_SOLARIS 2600 | |
| 103 /** BSD is a UNIX operating system derivative. @internal */ | |
| 104 #define U_PF_BSD 3000 | |
| 105 /** AIX is based on UNIX System V Releases and 4.3 BSD. @internal */ | |
| 106 #define U_PF_AIX 3100 | |
| 107 /** IRIX is based on UNIX System V with BSD extensions. @internal */ | |
| 108 #define U_PF_IRIX 3200 | |
| 109 /** | |
| 110 * Darwin is a POSIX-compliant operating system, composed of code developed by Apple, | |
| 111 * as well as code derived from NeXTSTEP, BSD, and other projects, | |
| 112 * built around the Mach kernel. | |
| 113 * Darwin forms the core set of components upon which Mac OS X, Apple TV, and iOS are based. | |
| 114 * (Original description modified from WikiPedia.) | |
| 115 * @internal | |
| 116 */ | |
| 117 #define U_PF_DARWIN 3500 | |
| 118 /** iPhone OS (iOS) is a derivative of Mac OS X. @internal */ | |
| 119 #define U_PF_IPHONE 3550 | |
| 120 /** QNX is a commercial Unix-like real-time operating system related to BSD. @internal */ | |
| 121 #define U_PF_QNX 3700 | |
| 122 /** Linux is a Unix-like operating system. @internal */ | |
| 123 #define U_PF_LINUX 4000 | |
| 124 /** Android is based on Linux. @internal */ | |
| 125 #define U_PF_ANDROID 4050 | |
| 126 /** "Classic" Mac OS (1984-2001) @internal */ | |
| 127 #define U_PF_CLASSIC_MACOS 8000 | |
| 128 /** z/OS is the successor to OS/390 which was the successor to MVS. @internal */ | |
| 129 #define U_PF_OS390 9000 | |
| 130 /** "IBM i" is the current name of what used to be i5/OS and earlier OS/400. @internal */ | |
| 131 #define U_PF_OS400 9400 | |
| 132 | |
| 133 #ifdef U_PLATFORM | |
| 134 /* Use the predefined value. */ | |
| 135 #elif defined(__MINGW32__) | |
| 136 # define U_PLATFORM U_PF_MINGW | |
| 137 #elif defined(__CYGWIN__) | |
| 138 # define U_PLATFORM U_PF_CYGWIN | |
| 139 #elif defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64) | |
| 140 # define U_PLATFORM U_PF_WINDOWS | |
| 141 #elif defined(__ANDROID__) | |
| 142 # define U_PLATFORM U_PF_ANDROID | |
| 143 /* Android wchar_t support depends on the API level. */ | |
| 144 # include <android/api-level.h> | |
| 145 #elif defined(linux) || defined(__linux__) || defined(__linux) | |
| 146 # define U_PLATFORM U_PF_LINUX | |
| 147 #elif defined(__APPLE__) && defined(__MACH__) | |
| 148 # include <TargetConditionals.h> | |
| 149 # if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE /* variant of TARGET_OS_MAC */ | |
| 150 # define U_PLATFORM U_PF_IPHONE | |
| 151 # else | |
| 152 # define U_PLATFORM U_PF_DARWIN | |
| 153 # endif | |
| 154 #elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__MirBSD__) | |
| 155 # define U_PLATFORM U_PF_BSD | |
| 156 #elif defined(sun) || defined(__sun) | |
| 157 /* Check defined(__SVR4) || defined(__svr4__) to distinguish Solaris from SunOS? */ | |
| 158 # define U_PLATFORM U_PF_SOLARIS | |
| 159 # if defined(__GNUC__) | |
| 160 /* Solaris/GCC needs this header file to get the proper endianness. Normally, this | |
| 161 * header file is included with stddef.h but on Solairs/GCC, the GCC version of stddef.h | |
| 162 * is included which does not include this header file. | |
| 163 */ | |
| 164 # include <sys/isa_defs.h> | |
| 165 # endif | |
| 166 #elif defined(_AIX) || defined(__TOS_AIX__) | |
| 167 # define U_PLATFORM U_PF_AIX | |
| 168 #elif defined(_hpux) || defined(hpux) || defined(__hpux) | |
| 169 # define U_PLATFORM U_PF_HPUX | |
| 170 #elif defined(sgi) || defined(__sgi) | |
| 171 # define U_PLATFORM U_PF_IRIX | |
| 172 #elif defined(macintosh) | |
| 173 # define U_PLATFORM U_PF_CLASSIC_MACOS | |
| 174 #elif defined(__QNX__) || defined(__QNXNTO__) | |
| 175 # define U_PLATFORM U_PF_QNX | |
| 176 #elif defined(__TOS_MVS__) | |
| 177 # define U_PLATFORM U_PF_OS390 | |
| 178 #elif defined(__OS400__) || defined(__TOS_OS400__) | |
| 179 # define U_PLATFORM U_PF_OS400 | |
| 180 #else | |
| 181 # define U_PLATFORM U_PF_UNKNOWN | |
| 182 #endif | |
| 183 | |
| 184 /** | |
| 185 * \def CYGWINMSVC | |
| 186 * Defined if this is Windows with Cygwin, but using MSVC rather than gcc. | |
| 187 * Otherwise undefined. | |
| 188 * @internal | |
| 189 */ | |
| 190 /* Commented out because this is already set in mh-cygwin-msvc | |
| 191 #if U_PLATFORM == U_PF_CYGWIN && defined(_MSC_VER) | |
| 192 # define CYGWINMSVC | |
| 193 #endif | |
| 194 */ | |
| 195 | |
| 196 /** | |
| 197 * \def U_PLATFORM_USES_ONLY_WIN32_API | |
| 198 * Defines whether the platform uses only the Win32 API. | |
| 199 * Set to 1 for Windows/MSVC and MinGW but not Cygwin. | |
| 200 * @internal | |
| 201 */ | |
| 202 #ifdef U_PLATFORM_USES_ONLY_WIN32_API | |
| 203 /* Use the predefined value. */ | |
| 204 #elif (U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_MINGW) || defined(CYGWINMSVC) | |
| 205 # define U_PLATFORM_USES_ONLY_WIN32_API 1 | |
| 206 #else | |
| 207 /* Cygwin implements POSIX. */ | |
| 208 # define U_PLATFORM_USES_ONLY_WIN32_API 0 | |
| 209 #endif | |
| 210 | |
| 211 /** | |
| 212 * \def U_PLATFORM_HAS_WIN32_API | |
| 213 * Defines whether the Win32 API is available on the platform. | |
| 214 * Set to 1 for Windows/MSVC, MinGW and Cygwin. | |
| 215 * @internal | |
| 216 */ | |
| 217 #ifdef U_PLATFORM_HAS_WIN32_API | |
| 218 /* Use the predefined value. */ | |
| 219 #elif U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN | |
| 220 # define U_PLATFORM_HAS_WIN32_API 1 | |
| 221 #else | |
| 222 # define U_PLATFORM_HAS_WIN32_API 0 | |
| 223 #endif | |
| 224 | |
| 225 /** | |
| 226 * \def U_PLATFORM_IMPLEMENTS_POSIX | |
| 227 * Defines whether the platform implements (most of) the POSIX API. | |
| 228 * Set to 1 for Cygwin and most other platforms. | |
| 229 * @internal | |
| 230 */ | |
| 231 #ifdef U_PLATFORM_IMPLEMENTS_POSIX | |
| 232 /* Use the predefined value. */ | |
| 233 #elif U_PLATFORM_USES_ONLY_WIN32_API || U_PLATFORM == U_PF_CLASSIC_MACOS | |
| 234 # define U_PLATFORM_IMPLEMENTS_POSIX 0 | |
| 235 #else | |
| 236 # define U_PLATFORM_IMPLEMENTS_POSIX 1 | |
| 237 #endif | |
| 238 | |
| 239 /** | |
| 240 * \def U_PLATFORM_IS_LINUX_BASED | |
| 241 * Defines whether the platform is Linux or one of its derivatives. | |
| 242 * @internal | |
| 243 */ | |
| 244 #ifdef U_PLATFORM_IS_LINUX_BASED | |
| 245 /* Use the predefined value. */ | |
| 246 #elif U_PF_LINUX <= U_PLATFORM && U_PLATFORM <= U_PF_ANDROID | |
| 247 # define U_PLATFORM_IS_LINUX_BASED 1 | |
| 248 #else | |
| 249 # define U_PLATFORM_IS_LINUX_BASED 0 | |
| 250 #endif | |
| 251 | |
| 252 /** | |
| 253 * \def U_PLATFORM_IS_DARWIN_BASED | |
| 254 * Defines whether the platform is Darwin or one of its derivatives. | |
| 255 * @internal | |
| 256 */ | |
| 257 #ifdef U_PLATFORM_IS_DARWIN_BASED | |
| 258 /* Use the predefined value. */ | |
| 259 #elif U_PF_DARWIN <= U_PLATFORM && U_PLATFORM <= U_PF_IPHONE | |
| 260 # define U_PLATFORM_IS_DARWIN_BASED 1 | |
| 261 #else | |
| 262 # define U_PLATFORM_IS_DARWIN_BASED 0 | |
| 263 #endif | |
| 264 | |
| 265 /** | |
| 266 * \def U_HAVE_STDINT_H | |
| 267 * Defines whether stdint.h is available. It is a C99 standard header. | |
| 268 * We used to include inttypes.h which includes stdint.h but we usually do not need | |
| 269 * the additional definitions from inttypes.h. | |
| 270 * @internal | |
| 271 */ | |
| 272 #ifdef U_HAVE_STDINT_H | |
| 273 /* Use the predefined value. */ | |
| 274 #elif U_PLATFORM_USES_ONLY_WIN32_API | |
| 275 # if defined(__BORLANDC__) || U_PLATFORM == U_PF_MINGW || (defined(_MSC_VER) && _MSC_VER>=1600) | |
| 276 /* Windows Visual Studio 9 and below do not have stdint.h & inttypes.h, but VS 2010 adds them. */ | |
| 277 # define U_HAVE_STDINT_H 1 | |
| 278 # else | |
| 279 # define U_HAVE_STDINT_H 0 | |
| 280 # endif | |
| 281 #elif U_PLATFORM == U_PF_SOLARIS | |
| 282 /* Solaris has inttypes.h but not stdint.h. */ | |
| 283 # define U_HAVE_STDINT_H 0 | |
| 284 #elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER) | |
| 285 /* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */ | |
| 286 # define U_HAVE_STDINT_H 0 | |
| 287 #else | |
| 288 # define U_HAVE_STDINT_H 1 | |
| 289 #endif | |
| 290 | |
| 291 /** | |
| 292 * \def U_HAVE_INTTYPES_H | |
| 293 * Defines whether inttypes.h is available. It is a C99 standard header. | |
| 294 * We include inttypes.h where it is available but stdint.h is not. | |
| 295 * @internal | |
| 296 */ | |
| 297 #ifdef U_HAVE_INTTYPES_H | |
| 298 /* Use the predefined value. */ | |
| 299 #elif U_PLATFORM == U_PF_SOLARIS | |
| 300 /* Solaris has inttypes.h but not stdint.h. */ | |
| 301 # define U_HAVE_INTTYPES_H 1 | |
| 302 #elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER) | |
| 303 /* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */ | |
| 304 # define U_HAVE_INTTYPES_H 1 | |
| 305 #else | |
| 306 /* Most platforms have both inttypes.h and stdint.h, or neither. */ | |
| 307 # define U_HAVE_INTTYPES_H U_HAVE_STDINT_H | |
| 308 #endif | |
| 309 | |
| 310 /** | |
| 311 * \def U_IOSTREAM_SOURCE | |
| 312 * Defines what support for C++ streams is available. | |
| 313 * | |
| 314 * If U_IOSTREAM_SOURCE is set to 199711, then <iostream> is available | |
| 315 * (the ISO/IEC C++ FDIS was published in November 1997), and then | |
| 316 * one should qualify streams using the std namespace in ICU header | |
| 317 * files. | |
| 318 * Starting with ICU 49, this is the only supported version. | |
| 319 * | |
| 320 * If U_IOSTREAM_SOURCE is set to 198506, then <iostream.h> is | |
| 321 * available instead (in June 1985 Stroustrup published | |
| 322 * "An Extensible I/O Facility for C++" at the summer USENIX conference). | |
| 323 * Starting with ICU 49, this version is not supported any more. | |
| 324 * | |
| 325 * If U_IOSTREAM_SOURCE is 0 (or any value less than 199711), | |
| 326 * then C++ streams are not available and | |
| 327 * support for them will be silently suppressed in ICU. | |
| 328 * | |
| 329 * @internal | |
| 330 */ | |
| 331 #ifndef U_IOSTREAM_SOURCE | |
| 332 #define U_IOSTREAM_SOURCE 199711 | |
| 333 #endif | |
| 334 | |
| 335 /** | |
| 336 * \def U_HAVE_STD_STRING | |
| 337 * Defines whether the standard C++ (STL) <string> header is available. | |
| 338 * @internal | |
| 339 */ | |
| 340 #ifdef U_HAVE_STD_STRING | |
| 341 /* Use the predefined value. */ | |
| 342 #else | |
| 343 # define U_HAVE_STD_STRING 1 | |
| 344 #endif | |
| 345 | |
| 346 /*===========================================================================*/ | |
| 347 /** @{ Compiler and environment features */ | |
| 348 /*===========================================================================*/ | |
| 349 | |
| 350 /** | |
| 351 * \def U_GCC_MAJOR_MINOR | |
| 352 * Indicates whether the compiler is gcc (test for != 0), | |
| 353 * and if so, contains its major (times 100) and minor version numbers. | |
| 354 * If the compiler is not gcc, then U_GCC_MAJOR_MINOR == 0. | |
| 355 * | |
| 356 * For example, for testing for whether we have gcc, and whether it's 4.6 or higher, | |
| 357 * use "#if U_GCC_MAJOR_MINOR >= 406". | |
| 358 * @internal | |
| 359 */ | |
| 360 #ifdef __GNUC__ | |
| 361 # define U_GCC_MAJOR_MINOR (__GNUC__ * 100 + __GNUC_MINOR__) | |
| 362 #else | |
| 363 # define U_GCC_MAJOR_MINOR 0 | |
| 364 #endif | |
| 365 | |
| 366 /** | |
| 367 * \def U_IS_BIG_ENDIAN | |
| 368 * Determines the endianness of the platform. | |
| 369 * @internal | |
| 370 */ | |
| 371 #ifdef U_IS_BIG_ENDIAN | |
| 372 /* Use the predefined value. */ | |
| 373 #elif defined(BYTE_ORDER) && defined(BIG_ENDIAN) | |
| 374 # define U_IS_BIG_ENDIAN (BYTE_ORDER == BIG_ENDIAN) | |
| 375 #elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) | |
| 376 /* gcc */ | |
| 377 # define U_IS_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) | |
| 378 #elif defined(__BIG_ENDIAN__) || defined(_BIG_ENDIAN) | |
| 379 # define U_IS_BIG_ENDIAN 1 | |
| 380 #elif defined(__LITTLE_ENDIAN__) || defined(_LITTLE_ENDIAN) | |
| 381 # define U_IS_BIG_ENDIAN 0 | |
| 382 #elif U_PLATFORM == U_PF_OS390 || U_PLATFORM == U_PF_OS400 || defined(__s390__) || defined(__s390x__) | |
| 383 /* These platforms do not appear to predefine any endianness macros. */ | |
| 384 # define U_IS_BIG_ENDIAN 1 | |
| 385 #elif defined(_PA_RISC1_0) || defined(_PA_RISC1_1) || defined(_PA_RISC2_0) | |
| 386 /* HPPA do not appear to predefine any endianness macros. */ | |
| 387 # define U_IS_BIG_ENDIAN 1 | |
| 388 #elif defined(sparc) || defined(__sparc) || defined(__sparc__) | |
| 389 /* Some sparc based systems (e.g. Linux) do not predefine any endianness macros. */ | |
| 390 # define U_IS_BIG_ENDIAN 1 | |
| 391 #else | |
| 392 # define U_IS_BIG_ENDIAN 0 | |
| 393 #endif | |
| 394 | |
| 395 /** | |
| 396 * \def U_HAVE_PLACEMENT_NEW | |
| 397 * Determines whether to override placement new and delete for STL. | |
| 398 * @stable ICU 2.6 | |
| 399 */ | |
| 400 #ifdef U_HAVE_PLACEMENT_NEW | |
| 401 /* Use the predefined value. */ | |
| 402 #elif defined(__BORLANDC__) | |
| 403 # define U_HAVE_PLACEMENT_NEW 0 | |
| 404 #else | |
| 405 # define U_HAVE_PLACEMENT_NEW 1 | |
| 406 #endif | |
| 407 | |
| 408 /** | |
| 409 * \def U_HAVE_DEBUG_LOCATION_NEW | |
| 410 * Define this to define the MFC debug version of the operator new. | |
| 411 * | |
| 412 * @stable ICU 3.4 | |
| 413 */ | |
| 414 #ifdef U_HAVE_DEBUG_LOCATION_NEW | |
| 415 /* Use the predefined value. */ | |
| 416 #elif defined(_MSC_VER) | |
| 417 # define U_HAVE_DEBUG_LOCATION_NEW 1 | |
| 418 #else | |
| 419 # define U_HAVE_DEBUG_LOCATION_NEW 0 | |
| 420 #endif | |
| 421 | |
| 422 /* Compatibility with non clang compilers */ | |
| 423 #ifndef __has_attribute | |
| 424 # define __has_attribute(x) 0 | |
| 425 #endif | |
| 426 | |
| 427 /** | |
| 428 * \def U_MALLOC_ATTR | |
| 429 * Attribute to mark functions as malloc-like | |
| 430 * @internal | |
| 431 */ | |
| 432 #if defined(__GNUC__) && __GNUC__>=3 | |
| 433 # define U_MALLOC_ATTR __attribute__ ((__malloc__)) | |
| 434 #else | |
| 435 # define U_MALLOC_ATTR | |
| 436 #endif | |
| 437 | |
| 438 /** | |
| 439 * \def U_ALLOC_SIZE_ATTR | |
| 440 * Attribute to specify the size of the allocated buffer for malloc-like functions | |
| 441 * @internal | |
| 442 */ | |
| 443 #if (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) || __has_attribute(alloc_size) | |
| 444 # define U_ALLOC_SIZE_ATTR(X) __attribute__ ((alloc_size(X))) | |
| 445 # define U_ALLOC_SIZE_ATTR2(X,Y) __attribute__ ((alloc_size(X,Y))) | |
| 446 #else | |
| 447 # define U_ALLOC_SIZE_ATTR(X) | |
| 448 # define U_ALLOC_SIZE_ATTR2(X,Y) | |
| 449 #endif | |
| 450 | |
| 451 /** @} */ | |
| 452 | |
| 453 /*===========================================================================*/ | |
| 454 /** @{ Character data types */ | |
| 455 /*===========================================================================*/ | |
| 456 | |
| 457 /** | |
| 458 * U_CHARSET_FAMILY is equal to this value when the platform is an ASCII based platform. | |
| 459 * @stable ICU 2.0 | |
| 460 */ | |
| 461 #define U_ASCII_FAMILY 0 | |
| 462 | |
| 463 /** | |
| 464 * U_CHARSET_FAMILY is equal to this value when the platform is an EBCDIC based platform. | |
| 465 * @stable ICU 2.0 | |
| 466 */ | |
| 467 #define U_EBCDIC_FAMILY 1 | |
| 468 | |
| 469 /** | |
| 470 * \def U_CHARSET_FAMILY | |
| 471 * | |
| 472 * <p>These definitions allow to specify the encoding of text | |
| 473 * in the char data type as defined by the platform and the compiler. | |
| 474 * It is enough to determine the code point values of "invariant characters", | |
| 475 * which are the ones shared by all encodings that are in use | |
| 476 * on a given platform.</p> | |
| 477 * | |
| 478 * <p>Those "invariant characters" should be all the uppercase and lowercase | |
| 479 * latin letters, the digits, the space, and "basic punctuation". | |
| 480 * Also, '\\n', '\\r', '\\t' should be available.</p> | |
| 481 * | |
| 482 * <p>The list of "invariant characters" is:<br> | |
| 483 * \code | |
| 484 * A-Z a-z 0-9 SPACE " % & ' ( ) * + , - . / : ; < = > ? _ | |
| 485 * \endcode | |
| 486 * <br> | |
| 487 * (52 letters + 10 numbers + 20 punc/sym/space = 82 total)</p> | |
| 488 * | |
| 489 * <p>This matches the IBM Syntactic Character Set (CS 640).</p> | |
| 490 * | |
| 491 * <p>In other words, all the graphic characters in 7-bit ASCII should | |
| 492 * be safely accessible except the following:</p> | |
| 493 * | |
| 494 * \code | |
| 495 * '\' <backslash> | |
| 496 * '[' <left bracket> | |
| 497 * ']' <right bracket> | |
| 498 * '{' <left brace> | |
| 499 * '}' <right brace> | |
| 500 * '^' <circumflex> | |
| 501 * '~' <tilde> | |
| 502 * '!' <exclamation mark> | |
| 503 * '#' <number sign> | |
| 504 * '|' <vertical line> | |
| 505 * '$' <dollar sign> | |
| 506 * '@' <commercial at> | |
| 507 * '`' <grave accent> | |
| 508 * \endcode | |
| 509 * @stable ICU 2.0 | |
| 510 */ | |
| 511 #ifdef U_CHARSET_FAMILY | |
| 512 /* Use the predefined value. */ | |
| 513 #elif U_PLATFORM == U_PF_OS390 && (!defined(__CHARSET_LIB) || !__CHARSET_LIB) | |
| 514 # define U_CHARSET_FAMILY U_EBCDIC_FAMILY | |
| 515 #elif U_PLATFORM == U_PF_OS400 && !defined(__UTF32__) | |
| 516 # define U_CHARSET_FAMILY U_EBCDIC_FAMILY | |
| 517 #else | |
| 518 # define U_CHARSET_FAMILY U_ASCII_FAMILY | |
| 519 #endif | |
| 520 | |
| 521 /** | |
| 522 * \def U_CHARSET_IS_UTF8 | |
| 523 * | |
| 524 * Hardcode the default charset to UTF-8. | |
| 525 * | |
| 526 * If this is set to 1, then | |
| 527 * - ICU will assume that all non-invariant char*, StringPiece, std::string etc. | |
| 528 * contain UTF-8 text, regardless of what the system API uses | |
| 529 * - some ICU code will use fast functions like u_strFromUTF8() | |
| 530 * rather than the more general and more heavy-weight conversion API (ucnv.h) | |
| 531 * - ucnv_getDefaultName() always returns "UTF-8" | |
| 532 * - ucnv_setDefaultName() is disabled and will not change the default charset | |
| 533 * - static builds of ICU are smaller | |
| 534 * - more functionality is available with the UCONFIG_NO_CONVERSION build-time | |
| 535 * configuration option (see unicode/uconfig.h) | |
| 536 * - the UCONFIG_NO_CONVERSION build option in uconfig.h is more usable | |
| 537 * | |
| 538 * @stable ICU 4.2 | |
| 539 * @see UCONFIG_NO_CONVERSION | |
| 540 */ | |
| 541 #ifdef U_CHARSET_IS_UTF8 | |
| 542 /* Use the predefined value. */ | |
| 543 #elif U_PLATFORM == U_PF_ANDROID || U_PLATFORM_IS_DARWIN_BASED | |
| 544 # define U_CHARSET_IS_UTF8 1 | |
| 545 #else | |
| 546 # define U_CHARSET_IS_UTF8 0 | |
| 547 #endif | |
| 548 | |
| 549 /** @} */ | |
| 550 | |
| 551 /*===========================================================================*/ | |
| 552 /** @{ Information about wchar support */ | |
| 553 /*===========================================================================*/ | |
| 554 | |
| 555 /** | |
| 556 * \def U_HAVE_WCHAR_H | |
| 557 * Indicates whether <wchar.h> is available (1) or not (0). Set to 1 by default. | |
| 558 * | |
| 559 * @stable ICU 2.0 | |
| 560 */ | |
| 561 #ifdef U_HAVE_WCHAR_H | |
| 562 /* Use the predefined value. */ | |
| 563 #elif U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9 | |
| 564 /* | |
| 565 * Android before Gingerbread (Android 2.3, API level 9) did not support wchar_t. | |
| 566 * The type and header existed, but the library functions did not work as expected. | |
| 567 * The size of wchar_t was 1 but L"xyz" string literals had 32-bit units anyway. | |
| 568 */ | |
| 569 # define U_HAVE_WCHAR_H 0 | |
| 570 #else | |
| 571 # define U_HAVE_WCHAR_H 1 | |
| 572 #endif | |
| 573 | |
| 574 /** | |
| 575 * \def U_SIZEOF_WCHAR_T | |
| 576 * U_SIZEOF_WCHAR_T==sizeof(wchar_t) | |
| 577 * | |
| 578 * @stable ICU 2.0 | |
| 579 */ | |
| 580 #ifdef U_SIZEOF_WCHAR_T | |
| 581 /* Use the predefined value. */ | |
| 582 #elif (U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9) || U_PLATFORM == U_PF_CLASSIC_MACOS | |
| 583 /* | |
| 584 * Classic Mac OS and Mac OS X before 10.3 (Panther) did not support wchar_t or wstring. | |
| 585 * Newer Mac OS X has size 4. | |
| 586 */ | |
| 587 # define U_SIZEOF_WCHAR_T 1 | |
| 588 #elif U_PLATFORM_HAS_WIN32_API || U_PLATFORM == U_PF_CYGWIN | |
| 589 # define U_SIZEOF_WCHAR_T 2 | |
| 590 #elif U_PLATFORM == U_PF_AIX | |
| 591 /* | |
| 592 * AIX 6.1 information, section "Wide character data representation": | |
| 593 * "... the wchar_t datatype is 32-bit in the 64-bit environment and | |
| 594 * 16-bit in the 32-bit environment." | |
| 595 * and | |
| 596 * "All locales use Unicode for their wide character code values (process code), | |
| 597 * except the IBM-eucTW codeset." | |
| 598 */ | |
| 599 # ifdef __64BIT__ | |
| 600 # define U_SIZEOF_WCHAR_T 4 | |
| 601 # else | |
| 602 # define U_SIZEOF_WCHAR_T 2 | |
| 603 # endif | |
| 604 #elif U_PLATFORM == U_PF_OS390 | |
| 605 /* | |
| 606 * z/OS V1R11 information center, section "LP64 | ILP32": | |
| 607 * "In 31-bit mode, the size of long and pointers is 4 bytes and the size of wchar_t is 2 bytes. | |
| 608 * Under LP64, the size of long and pointer is 8 bytes and the size of wchar_t is 4 bytes." | |
| 609 */ | |
| 610 # ifdef _LP64 | |
| 611 # define U_SIZEOF_WCHAR_T 4 | |
| 612 # else | |
| 613 # define U_SIZEOF_WCHAR_T 2 | |
| 614 # endif | |
| 615 #elif U_PLATFORM == U_PF_OS400 | |
| 616 # if defined(__UTF32__) | |
| 617 /* | |
| 618 * LOCALETYPE(*LOCALEUTF) is specified. | |
| 619 * Wide-character strings are in UTF-32, | |
| 620 * narrow-character strings are in UTF-8. | |
| 621 */ | |
| 622 # define U_SIZEOF_WCHAR_T 4 | |
| 623 # elif defined(__UCS2__) | |
| 624 /* | |
| 625 * LOCALETYPE(*LOCALEUCS2) is specified. | |
| 626 * Wide-character strings are in UCS-2, | |
| 627 * narrow-character strings are in EBCDIC. | |
| 628 */ | |
| 629 # define U_SIZEOF_WCHAR_T 2 | |
| 630 #else | |
| 631 /* | |
| 632 * LOCALETYPE(*CLD) or LOCALETYPE(*LOCALE) is specified. | |
| 633 * Wide-character strings are in 16-bit EBCDIC, | |
| 634 * narrow-character strings are in EBCDIC. | |
| 635 */ | |
| 636 # define U_SIZEOF_WCHAR_T 2 | |
| 637 # endif | |
| 638 #else | |
| 639 # define U_SIZEOF_WCHAR_T 4 | |
| 640 #endif | |
| 641 | |
| 642 #ifndef U_HAVE_WCSCPY | |
| 643 #define U_HAVE_WCSCPY U_HAVE_WCHAR_H | |
| 644 #endif | |
| 645 | |
| 646 /** @} */ | |
| 647 | |
| 648 /** | |
| 649 * \def U_HAVE_CHAR16_T | |
| 650 * Defines whether the char16_t type is available for UTF-16 | |
| 651 * and u"abc" UTF-16 string literals are supported. | |
| 652 * This is a new standard type and standard string literal syntax in C++0x | |
| 653 * but has been available in some compilers before. | |
| 654 * @internal | |
| 655 */ | |
| 656 #ifdef U_HAVE_CHAR16_T | |
| 657 /* Use the predefined value. */ | |
| 658 #else | |
| 659 /* | |
| 660 * Notes: | |
| 661 * Visual Studio 10 (_MSC_VER>=1600) defines char16_t but | |
| 662 * does not support u"abc" string literals. | |
| 663 * gcc 4.4 defines the __CHAR16_TYPE__ macro to a usable type but | |
| 664 * does not support u"abc" string literals. | |
| 665 * C++11 and C11 require support for UTF-16 literals | |
| 666 */ | |
| 667 # if (defined(__cplusplus) && __cplusplus >= 201103L) || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) | |
| 668 # define U_HAVE_CHAR16_T 1 | |
| 669 # else | |
| 670 # define U_HAVE_CHAR16_T 0 | |
| 671 # endif | |
| 672 #endif | |
| 673 | |
| 674 /** | |
| 675 * @{ | |
| 676 * \def U_DECLARE_UTF16 | |
| 677 * Do not use this macro because it is not defined on all platforms. | |
| 678 * Use the UNICODE_STRING or U_STRING_DECL macros instead. | |
| 679 * @internal | |
| 680 */ | |
| 681 #ifdef U_DECLARE_UTF16 | |
| 682 /* Use the predefined value. */ | |
| 683 #elif U_HAVE_CHAR16_T \ | |
| 684 || (defined(__xlC__) && defined(__IBM_UTF_LITERAL) && U_SIZEOF_WCHAR_T != 2) \ | |
| 685 || (defined(__HP_aCC) && __HP_aCC >= 035000) \ | |
| 686 || (defined(__HP_cc) && __HP_cc >= 111106) | |
| 687 # define U_DECLARE_UTF16(string) u ## string | |
| 688 #elif U_SIZEOF_WCHAR_T == 2 \ | |
| 689 && (U_CHARSET_FAMILY == 0 || (U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400 && defined(__UCS2__))) | |
| 690 # define U_DECLARE_UTF16(string) L ## string | |
| 691 #else | |
| 692 /* Leave U_DECLARE_UTF16 undefined. See unistr.h. */ | |
| 693 #endif | |
| 694 | |
| 695 /** @} */ | |
| 696 | |
| 697 /*===========================================================================*/ | |
| 698 /** @{ Symbol import-export control */ | |
| 699 /*===========================================================================*/ | |
| 700 | |
| 701 #ifdef U_EXPORT | |
| 702 /* Use the predefined value. */ | |
| 703 #elif defined(U_STATIC_IMPLEMENTATION) | |
| 704 # define U_EXPORT | |
| 705 #elif defined(__GNUC__) | |
| 706 # define U_EXPORT __attribute__((visibility("default"))) | |
| 707 #elif (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x550) \ | |
| 708 || (defined(__SUNPRO_C) && __SUNPRO_C >= 0x550) | |
| 709 # define U_EXPORT __global | |
| 710 /*#elif defined(__HP_aCC) || defined(__HP_cc) | |
| 711 # define U_EXPORT __declspec(dllexport)*/ | |
| 712 #elif defined(_MSC_VER) | |
| 713 # define U_EXPORT __declspec(dllexport) | |
| 714 #else | |
| 715 # define U_EXPORT | |
| 716 #endif | |
| 717 | |
| 718 /* U_CALLCONV is releated to U_EXPORT2 */ | |
| 719 #ifdef U_EXPORT2 | |
| 720 /* Use the predefined value. */ | |
| 721 #elif defined(_MSC_VER) | |
| 722 # define U_EXPORT2 __cdecl | |
| 723 #else | |
| 724 # define U_EXPORT2 | |
| 725 #endif | |
| 726 | |
| 727 #ifdef U_IMPORT | |
| 728 /* Use the predefined value. */ | |
| 729 #elif defined(_MSC_VER) | |
| 730 /* Windows needs to export/import data. */ | |
| 731 # define U_IMPORT __declspec(dllimport) | |
| 732 #else | |
| 733 # define U_IMPORT | |
| 734 #endif | |
| 735 | |
| 736 /** | |
| 737 * \def U_CALLCONV | |
| 738 * Similar to U_CDECL_BEGIN/U_CDECL_END, this qualifier is necessary | |
| 739 * in callback function typedefs to make sure that the calling convention | |
| 740 * is compatible. | |
| 741 * | |
| 742 * This is only used for non-ICU-API functions. | |
| 743 * When a function is a public ICU API, | |
| 744 * you must use the U_CAPI and U_EXPORT2 qualifiers. | |
| 745 * @stable ICU 2.0 | |
| 746 */ | |
| 747 #if U_PLATFORM == U_PF_OS390 && defined(__cplusplus) | |
| 748 # define U_CALLCONV __cdecl | |
| 749 #else | |
| 750 # define U_CALLCONV U_EXPORT2 | |
| 751 #endif | |
| 752 | |
| 753 /* @} */ | |
| 754 | |
| 755 #endif |
