1 /* 2 ****************************************************************************** 3 * 4 * Copyright (C) 1997-2015, 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 /** 125 * Native Client is pretty close to Linux. 126 * See https://developer.chrome.com/native-client and 127 * http://www.chromium.org/nativeclient 128 * @internal 129 */ 130 #define U_PF_BROWSER_NATIVE_CLIENT 4020 131 /** Android is based on Linux. @internal */ 132 #define U_PF_ANDROID 4050 133 /* Maximum value for Linux-based platform is 4499 */ 134 /** z/OS is the successor to OS/390 which was the successor to MVS. @internal */ 135 #define U_PF_OS390 9000 136 /** "IBM i" is the current name of what used to be i5/OS and earlier OS/400. @internal */ 137 #define U_PF_OS400 9400 138 139 #ifdef U_PLATFORM 140 /* Use the predefined value. */ 141 #elif defined(__MINGW32__) 142 # define U_PLATFORM U_PF_MINGW 143 #elif defined(__CYGWIN__) 144 # define U_PLATFORM U_PF_CYGWIN 145 #elif defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64) 146 # define U_PLATFORM U_PF_WINDOWS 147 #elif defined(__ANDROID__) 148 # define U_PLATFORM U_PF_ANDROID 149 /* Android wchar_t support depends on the API level. */ 150 # include <android/api-level.h> 151 #elif defined(__native_client__) 152 # define U_PLATFORM U_PF_BROWSER_NATIVE_CLIENT 153 #elif defined(linux) || defined(__linux__) || defined(__linux) 154 # define U_PLATFORM U_PF_LINUX 155 #elif defined(__APPLE__) && defined(__MACH__) 156 # include <TargetConditionals.h> 157 # if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE /* variant of TARGET_OS_MAC */ 158 # define U_PLATFORM U_PF_IPHONE 159 # else 160 # define U_PLATFORM U_PF_DARWIN 161 # endif 162 #elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__MirBSD__) 163 # if defined(__FreeBSD__) 164 # include <sys/endian.h> 165 # endif 166 # define U_PLATFORM U_PF_BSD 167 #elif defined(sun) || defined(__sun) 168 /* Check defined(__SVR4) || defined(__svr4__) to distinguish Solaris from SunOS? */ 169 # define U_PLATFORM U_PF_SOLARIS 170 # if defined(__GNUC__) 171 /* Solaris/GCC needs this header file to get the proper endianness. Normally, this 172 * header file is included with stddef.h but on Solairs/GCC, the GCC version of stddef.h 173 * is included which does not include this header file. 174 */ 175 # include <sys/isa_defs.h> 176 # endif 177 #elif defined(_AIX) || defined(__TOS_AIX__) 178 # define U_PLATFORM U_PF_AIX 179 #elif defined(_hpux) || defined(hpux) || defined(__hpux) 180 # define U_PLATFORM U_PF_HPUX 181 #elif defined(sgi) || defined(__sgi) 182 # define U_PLATFORM U_PF_IRIX 183 #elif defined(__QNX__) || defined(__QNXNTO__) 184 # define U_PLATFORM U_PF_QNX 185 #elif defined(__TOS_MVS__) 186 # define U_PLATFORM U_PF_OS390 187 #elif defined(__OS400__) || defined(__TOS_OS400__) 188 # define U_PLATFORM U_PF_OS400 189 #else 190 # define U_PLATFORM U_PF_UNKNOWN 191 #endif 192 193 /** 194 * \def CYGWINMSVC 195 * Defined if this is Windows with Cygwin, but using MSVC rather than gcc. 196 * Otherwise undefined. 197 * @internal 198 */ 199 /* Commented out because this is already set in mh-cygwin-msvc 200 #if U_PLATFORM == U_PF_CYGWIN && defined(_MSC_VER) 201 # define CYGWINMSVC 202 #endif 203 */ 204 205 /** 206 * \def U_PLATFORM_USES_ONLY_WIN32_API 207 * Defines whether the platform uses only the Win32 API. 208 * Set to 1 for Windows/MSVC and MinGW but not Cygwin. 209 * @internal 210 */ 211 #ifdef U_PLATFORM_USES_ONLY_WIN32_API 212 /* Use the predefined value. */ 213 #elif (U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_MINGW) || defined(CYGWINMSVC) 214 # define U_PLATFORM_USES_ONLY_WIN32_API 1 215 #else 216 /* Cygwin implements POSIX. */ 217 # define U_PLATFORM_USES_ONLY_WIN32_API 0 218 #endif 219 220 /** 221 * \def U_PLATFORM_HAS_WIN32_API 222 * Defines whether the Win32 API is available on the platform. 223 * Set to 1 for Windows/MSVC, MinGW and Cygwin. 224 * @internal 225 */ 226 #ifdef U_PLATFORM_HAS_WIN32_API 227 /* Use the predefined value. */ 228 #elif U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN 229 # define U_PLATFORM_HAS_WIN32_API 1 230 #else 231 # define U_PLATFORM_HAS_WIN32_API 0 232 #endif 233 234 /** 235 * \def U_PLATFORM_IMPLEMENTS_POSIX 236 * Defines whether the platform implements (most of) the POSIX API. 237 * Set to 1 for Cygwin and most other platforms. 238 * @internal 239 */ 240 #ifdef U_PLATFORM_IMPLEMENTS_POSIX 241 /* Use the predefined value. */ 242 #elif U_PLATFORM_USES_ONLY_WIN32_API 243 # define U_PLATFORM_IMPLEMENTS_POSIX 0 244 #else 245 # define U_PLATFORM_IMPLEMENTS_POSIX 1 246 #endif 247 248 /** 249 * \def U_PLATFORM_IS_LINUX_BASED 250 * Defines whether the platform is Linux or one of its derivatives. 251 * @internal 252 */ 253 #ifdef U_PLATFORM_IS_LINUX_BASED 254 /* Use the predefined value. */ 255 #elif U_PF_LINUX <= U_PLATFORM && U_PLATFORM <= 4499 256 # define U_PLATFORM_IS_LINUX_BASED 1 257 #else 258 # define U_PLATFORM_IS_LINUX_BASED 0 259 #endif 260 261 /** 262 * \def U_PLATFORM_IS_DARWIN_BASED 263 * Defines whether the platform is Darwin or one of its derivatives. 264 * @internal 265 */ 266 #ifdef U_PLATFORM_IS_DARWIN_BASED 267 /* Use the predefined value. */ 268 #elif U_PF_DARWIN <= U_PLATFORM && U_PLATFORM <= U_PF_IPHONE 269 # define U_PLATFORM_IS_DARWIN_BASED 1 270 #else 271 # define U_PLATFORM_IS_DARWIN_BASED 0 272 #endif 273 274 /** 275 * \def U_HAVE_STDINT_H 276 * Defines whether stdint.h is available. It is a C99 standard header. 277 * We used to include inttypes.h which includes stdint.h but we usually do not need 278 * the additional definitions from inttypes.h. 279 * @internal 280 */ 281 #ifdef U_HAVE_STDINT_H 282 /* Use the predefined value. */ 283 #elif U_PLATFORM_USES_ONLY_WIN32_API 284 # if defined(__BORLANDC__) || U_PLATFORM == U_PF_MINGW || (defined(_MSC_VER) && _MSC_VER>=1600) 285 /* Windows Visual Studio 9 and below do not have stdint.h & inttypes.h, but VS 2010 adds them. */ 286 # define U_HAVE_STDINT_H 1 287 # else 288 # define U_HAVE_STDINT_H 0 289 # endif 290 #elif U_PLATFORM == U_PF_SOLARIS 291 /* Solaris has inttypes.h but not stdint.h. */ 292 # define U_HAVE_STDINT_H 0 293 #elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER) 294 /* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */ 295 # define U_HAVE_STDINT_H 0 296 #else 297 # define U_HAVE_STDINT_H 1 298 #endif 299 300 /** 301 * \def U_HAVE_INTTYPES_H 302 * Defines whether inttypes.h is available. It is a C99 standard header. 303 * We include inttypes.h where it is available but stdint.h is not. 304 * @internal 305 */ 306 #ifdef U_HAVE_INTTYPES_H 307 /* Use the predefined value. */ 308 #elif U_PLATFORM == U_PF_SOLARIS 309 /* Solaris has inttypes.h but not stdint.h. */ 310 # define U_HAVE_INTTYPES_H 1 311 #elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER) 312 /* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */ 313 # define U_HAVE_INTTYPES_H 1 314 #else 315 /* Most platforms have both inttypes.h and stdint.h, or neither. */ 316 # define U_HAVE_INTTYPES_H U_HAVE_STDINT_H 317 #endif 318 319 /** 320 * \def U_IOSTREAM_SOURCE 321 * Defines what support for C++ streams is available. 322 * 323 * If U_IOSTREAM_SOURCE is set to 199711, then <iostream> is available 324 * (the ISO/IEC C++ FDIS was published in November 1997), and then 325 * one should qualify streams using the std namespace in ICU header 326 * files. 327 * Starting with ICU 49, this is the only supported version. 328 * 329 * If U_IOSTREAM_SOURCE is set to 198506, then <iostream.h> is 330 * available instead (in June 1985 Stroustrup published 331 * "An Extensible I/O Facility for C++" at the summer USENIX conference). 332 * Starting with ICU 49, this version is not supported any more. 333 * 334 * If U_IOSTREAM_SOURCE is 0 (or any value less than 199711), 335 * then C++ streams are not available and 336 * support for them will be silently suppressed in ICU. 337 * 338 * @internal 339 */ 340 #ifndef U_IOSTREAM_SOURCE 341 #define U_IOSTREAM_SOURCE 199711 342 #endif 343 344 /** 345 * \def U_HAVE_STD_STRING 346 * Defines whether the standard C++ (STL) <string> header is available. 347 * @internal 348 */ 349 #ifdef U_HAVE_STD_STRING 350 /* Use the predefined value. */ 351 #else 352 # define U_HAVE_STD_STRING 1 353 #endif 354 355 /*===========================================================================*/ 356 /** @{ Compiler and environment features */ 357 /*===========================================================================*/ 358 359 /** 360 * \def U_GCC_MAJOR_MINOR 361 * Indicates whether the compiler is gcc (test for != 0), 362 * and if so, contains its major (times 100) and minor version numbers. 363 * If the compiler is not gcc, then U_GCC_MAJOR_MINOR == 0. 364 * 365 * For example, for testing for whether we have gcc, and whether it's 4.6 or higher, 366 * use "#if U_GCC_MAJOR_MINOR >= 406". 367 * @internal 368 */ 369 #ifdef __GNUC__ 370 # define U_GCC_MAJOR_MINOR (__GNUC__ * 100 + __GNUC_MINOR__) 371 #else 372 # define U_GCC_MAJOR_MINOR 0 373 #endif 374 375 /** 376 * \def U_IS_BIG_ENDIAN 377 * Determines the endianness of the platform. 378 * @internal 379 */ 380 #ifdef U_IS_BIG_ENDIAN 381 /* Use the predefined value. */ 382 #elif defined(BYTE_ORDER) && defined(BIG_ENDIAN) 383 # define U_IS_BIG_ENDIAN (BYTE_ORDER == BIG_ENDIAN) 384 #elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) 385 /* gcc */ 386 # define U_IS_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) 387 #elif defined(__BIG_ENDIAN__) || defined(_BIG_ENDIAN) 388 # define U_IS_BIG_ENDIAN 1 389 #elif defined(__LITTLE_ENDIAN__) || defined(_LITTLE_ENDIAN) 390 # define U_IS_BIG_ENDIAN 0 391 #elif U_PLATFORM == U_PF_OS390 || U_PLATFORM == U_PF_OS400 || defined(__s390__) || defined(__s390x__) 392 /* These platforms do not appear to predefine any endianness macros. */ 393 # define U_IS_BIG_ENDIAN 1 394 #elif defined(_PA_RISC1_0) || defined(_PA_RISC1_1) || defined(_PA_RISC2_0) 395 /* HPPA do not appear to predefine any endianness macros. */ 396 # define U_IS_BIG_ENDIAN 1 397 #elif defined(sparc) || defined(__sparc) || defined(__sparc__) 398 /* Some sparc based systems (e.g. Linux) do not predefine any endianness macros. */ 399 # define U_IS_BIG_ENDIAN 1 400 #else 401 # define U_IS_BIG_ENDIAN 0 402 #endif 403 404 /** 405 * \def U_HAVE_PLACEMENT_NEW 406 * Determines whether to override placement new and delete for STL. 407 * @stable ICU 2.6 408 */ 409 #ifdef U_HAVE_PLACEMENT_NEW 410 /* Use the predefined value. */ 411 #elif defined(__BORLANDC__) 412 # define U_HAVE_PLACEMENT_NEW 0 413 #else 414 # define U_HAVE_PLACEMENT_NEW 1 415 #endif 416 417 /** 418 * \def U_HAVE_DEBUG_LOCATION_NEW 419 * Define this to define the MFC debug version of the operator new. 420 * 421 * @stable ICU 3.4 422 */ 423 #ifdef U_HAVE_DEBUG_LOCATION_NEW 424 /* Use the predefined value. */ 425 #elif defined(_MSC_VER) 426 # define U_HAVE_DEBUG_LOCATION_NEW 1 427 #else 428 # define U_HAVE_DEBUG_LOCATION_NEW 0 429 #endif 430 431 /* Compatibility with non clang compilers */ 432 #ifndef __has_attribute 433 # define __has_attribute(x) 0 434 #endif 435 #ifndef __has_builtin 436 # define __has_builtin(x) 0 437 #endif 438 #ifndef __has_feature 439 # define __has_feature(x) 0 440 #endif 441 #ifndef __has_extension 442 # define __has_extension(x) 0 443 #endif 444 445 /** 446 * \def U_MALLOC_ATTR 447 * Attribute to mark functions as malloc-like 448 * @internal 449 */ 450 #if defined(__GNUC__) && __GNUC__>=3 451 # define U_MALLOC_ATTR __attribute__ ((__malloc__)) 452 #else 453 # define U_MALLOC_ATTR 454 #endif 455 456 /** 457 * \def U_ALLOC_SIZE_ATTR 458 * Attribute to specify the size of the allocated buffer for malloc-like functions 459 * @internal 460 */ 461 #if (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) || __has_attribute(alloc_size) 462 # define U_ALLOC_SIZE_ATTR(X) __attribute__ ((alloc_size(X))) 463 # define U_ALLOC_SIZE_ATTR2(X,Y) __attribute__ ((alloc_size(X,Y))) 464 #else 465 # define U_ALLOC_SIZE_ATTR(X) 466 # define U_ALLOC_SIZE_ATTR2(X,Y) 467 #endif 468 469 /** 470 * \def U_CPLUSPLUS_VERSION 471 * 0 if no C++; 1, 11, 14, ... if C++. 472 * Support for specific features cannot always be determined by the C++ version alone. 473 * @internal 474 */ 475 #ifdef U_CPLUSPLUS_VERSION 476 # if U_CPLUSPLUS_VERSION != 0 && !defined(__cplusplus) 477 # undef U_CPLUSPLUS_VERSION 478 # define U_CPLUSPLUS_VERSION 0 479 # endif 480 /* Otherwise use the predefined value. */ 481 #elif !defined(__cplusplus) 482 # define U_CPLUSPLUS_VERSION 0 483 #elif __cplusplus >= 201402L 484 # define U_CPLUSPLUS_VERSION 14 485 #elif __cplusplus >= 201103L 486 # define U_CPLUSPLUS_VERSION 11 487 #else 488 // C++98 or C++03 489 # define U_CPLUSPLUS_VERSION 1 490 #endif 491 492 /** 493 * \def U_HAVE_RVALUE_REFERENCES 494 * Set to 1 if the compiler supports rvalue references. 495 * C++11 feature, necessary for move constructor & move assignment. 496 * @internal 497 */ 498 #ifdef U_HAVE_RVALUE_REFERENCES 499 /* Use the predefined value. */ 500 #elif U_CPLUSPLUS_VERSION >= 11 || __has_feature(cxx_rvalue_references) \ 501 || defined(__GXX_EXPERIMENTAL_CXX0X__) \ 502 || (defined(_MSC_VER) && _MSC_VER >= 1600) /* Visual Studio 2010 */ 503 # define U_HAVE_RVALUE_REFERENCES 1 504 #else 505 # define U_HAVE_RVALUE_REFERENCES 0 506 #endif 507 508 /** 509 * \def U_NOEXCEPT 510 * "noexcept" if supported, otherwise empty. 511 * Some code, especially STL containers, uses move semantics of objects only 512 * if the move constructor and the move operator are declared as not throwing exceptions. 513 * @internal 514 */ 515 #ifdef U_NOEXCEPT 516 /* Use the predefined value. */ 517 #elif U_CPLUSPLUS_VERSION >= 11 || __has_feature(cxx_noexcept) || __has_extension(cxx_noexcept) \ 518 || (defined(_MSC_VER) && _MSC_VER >= 1900) /* Visual Studio 2015 */ 519 # define U_NOEXCEPT noexcept 520 #else 521 # define U_NOEXCEPT 522 #endif 523 524 /** @} */ 525 526 /*===========================================================================*/ 527 /** @{ Character data types */ 528 /*===========================================================================*/ 529 530 /** 531 * U_CHARSET_FAMILY is equal to this value when the platform is an ASCII based platform. 532 * @stable ICU 2.0 533 */ 534 #define U_ASCII_FAMILY 0 535 536 /** 537 * U_CHARSET_FAMILY is equal to this value when the platform is an EBCDIC based platform. 538 * @stable ICU 2.0 539 */ 540 #define U_EBCDIC_FAMILY 1 541 542 /** 543 * \def U_CHARSET_FAMILY 544 * 545 * <p>These definitions allow to specify the encoding of text 546 * in the char data type as defined by the platform and the compiler. 547 * It is enough to determine the code point values of "invariant characters", 548 * which are the ones shared by all encodings that are in use 549 * on a given platform.</p> 550 * 551 * <p>Those "invariant characters" should be all the uppercase and lowercase 552 * latin letters, the digits, the space, and "basic punctuation". 553 * Also, '\\n', '\\r', '\\t' should be available.</p> 554 * 555 * <p>The list of "invariant characters" is:<br> 556 * \code 557 * A-Z a-z 0-9 SPACE " % & ' ( ) * + , - . / : ; < = > ? _ 558 * \endcode 559 * <br> 560 * (52 letters + 10 numbers + 20 punc/sym/space = 82 total)</p> 561 * 562 * <p>This matches the IBM Syntactic Character Set (CS 640).</p> 563 * 564 * <p>In other words, all the graphic characters in 7-bit ASCII should 565 * be safely accessible except the following:</p> 566 * 567 * \code 568 * '\' <backslash> 569 * '[' <left bracket> 570 * ']' <right bracket> 571 * '{' <left brace> 572 * '}' <right brace> 573 * '^' <circumflex> 574 * '~' <tilde> 575 * '!' <exclamation mark> 576 * '#' <number sign> 577 * '|' <vertical line> 578 * '$' <dollar sign> 579 * '@' <commercial at> 580 * '`' <grave accent> 581 * \endcode 582 * @stable ICU 2.0 583 */ 584 #ifdef U_CHARSET_FAMILY 585 /* Use the predefined value. */ 586 #elif U_PLATFORM == U_PF_OS390 && (!defined(__CHARSET_LIB) || !__CHARSET_LIB) 587 # define U_CHARSET_FAMILY U_EBCDIC_FAMILY 588 #elif U_PLATFORM == U_PF_OS400 && !defined(__UTF32__) 589 # define U_CHARSET_FAMILY U_EBCDIC_FAMILY 590 #else 591 # define U_CHARSET_FAMILY U_ASCII_FAMILY 592 #endif 593 594 /** 595 * \def U_CHARSET_IS_UTF8 596 * 597 * Hardcode the default charset to UTF-8. 598 * 599 * If this is set to 1, then 600 * - ICU will assume that all non-invariant char*, StringPiece, std::string etc. 601 * contain UTF-8 text, regardless of what the system API uses 602 * - some ICU code will use fast functions like u_strFromUTF8() 603 * rather than the more general and more heavy-weight conversion API (ucnv.h) 604 * - ucnv_getDefaultName() always returns "UTF-8" 605 * - ucnv_setDefaultName() is disabled and will not change the default charset 606 * - static builds of ICU are smaller 607 * - more functionality is available with the UCONFIG_NO_CONVERSION build-time 608 * configuration option (see unicode/uconfig.h) 609 * - the UCONFIG_NO_CONVERSION build option in uconfig.h is more usable 610 * 611 * @stable ICU 4.2 612 * @see UCONFIG_NO_CONVERSION 613 */ 614 #ifdef U_CHARSET_IS_UTF8 615 /* Use the predefined value. */ 616 #elif U_PLATFORM == U_PF_ANDROID || U_PLATFORM_IS_DARWIN_BASED 617 # define U_CHARSET_IS_UTF8 1 618 #elif U_PLATFORM_IS_LINUX_BASED 619 /* 620 * Google-specific: Set to 1 to match the google3 execution environment's 621 * use of UTF-8, on both Linux server and workstation machines. 622 */ 623 # define U_CHARSET_IS_UTF8 1 624 #else 625 # define U_CHARSET_IS_UTF8 0 626 #endif 627 628 /** @} */ 629 630 /*===========================================================================*/ 631 /** @{ Information about wchar support */ 632 /*===========================================================================*/ 633 634 /** 635 * \def U_HAVE_WCHAR_H 636 * Indicates whether <wchar.h> is available (1) or not (0). Set to 1 by default. 637 * 638 * @stable ICU 2.0 639 */ 640 #ifdef U_HAVE_WCHAR_H 641 /* Use the predefined value. */ 642 #elif U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9 643 /* 644 * Android before Gingerbread (Android 2.3, API level 9) did not support wchar_t. 645 * The type and header existed, but the library functions did not work as expected. 646 * The size of wchar_t was 1 but L"xyz" string literals had 32-bit units anyway. 647 */ 648 # define U_HAVE_WCHAR_H 0 649 #else 650 # define U_HAVE_WCHAR_H 1 651 #endif 652 653 /** 654 * \def U_SIZEOF_WCHAR_T 655 * U_SIZEOF_WCHAR_T==sizeof(wchar_t) 656 * 657 * @stable ICU 2.0 658 */ 659 #ifdef U_SIZEOF_WCHAR_T 660 /* Use the predefined value. */ 661 #elif (U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9) 662 /* 663 * Classic Mac OS and Mac OS X before 10.3 (Panther) did not support wchar_t or wstring. 664 * Newer Mac OS X has size 4. 665 */ 666 # define U_SIZEOF_WCHAR_T 1 667 #elif U_PLATFORM_HAS_WIN32_API || U_PLATFORM == U_PF_CYGWIN 668 # define U_SIZEOF_WCHAR_T 2 669 #elif U_PLATFORM == U_PF_AIX 670 /* 671 * AIX 6.1 information, section "Wide character data representation": 672 * "... the wchar_t datatype is 32-bit in the 64-bit environment and 673 * 16-bit in the 32-bit environment." 674 * and 675 * "All locales use Unicode for their wide character code values (process code), 676 * except the IBM-eucTW codeset." 677 */ 678 # ifdef __64BIT__ 679 # define U_SIZEOF_WCHAR_T 4 680 # else 681 # define U_SIZEOF_WCHAR_T 2 682 # endif 683 #elif U_PLATFORM == U_PF_OS390 684 /* 685 * z/OS V1R11 information center, section "LP64 | ILP32": 686 * "In 31-bit mode, the size of long and pointers is 4 bytes and the size of wchar_t is 2 bytes. 687 * Under LP64, the size of long and pointer is 8 bytes and the size of wchar_t is 4 bytes." 688 */ 689 # ifdef _LP64 690 # define U_SIZEOF_WCHAR_T 4 691 # else 692 # define U_SIZEOF_WCHAR_T 2 693 # endif 694 #elif U_PLATFORM == U_PF_OS400 695 # if defined(__UTF32__) 696 /* 697 * LOCALETYPE(*LOCALEUTF) is specified. 698 * Wide-character strings are in UTF-32, 699 * narrow-character strings are in UTF-8. 700 */ 701 # define U_SIZEOF_WCHAR_T 4 702 # elif defined(__UCS2__) 703 /* 704 * LOCALETYPE(*LOCALEUCS2) is specified. 705 * Wide-character strings are in UCS-2, 706 * narrow-character strings are in EBCDIC. 707 */ 708 # define U_SIZEOF_WCHAR_T 2 709 #else 710 /* 711 * LOCALETYPE(*CLD) or LOCALETYPE(*LOCALE) is specified. 712 * Wide-character strings are in 16-bit EBCDIC, 713 * narrow-character strings are in EBCDIC. 714 */ 715 # define U_SIZEOF_WCHAR_T 2 716 # endif 717 #else 718 # define U_SIZEOF_WCHAR_T 4 719 #endif 720 721 #ifndef U_HAVE_WCSCPY 722 #define U_HAVE_WCSCPY U_HAVE_WCHAR_H 723 #endif 724 725 /** @} */ 726 727 /** 728 * \def U_HAVE_CHAR16_T 729 * Defines whether the char16_t type is available for UTF-16 730 * and u"abc" UTF-16 string literals are supported. 731 * This is a new standard type and standard string literal syntax in C++0x 732 * but has been available in some compilers before. 733 * @internal 734 */ 735 #ifdef U_HAVE_CHAR16_T 736 /* Use the predefined value. */ 737 #else 738 /* 739 * Notes: 740 * Visual Studio 10 (_MSC_VER>=1600) defines char16_t but 741 * does not support u"abc" string literals. 742 * gcc 4.4 defines the __CHAR16_TYPE__ macro to a usable type but 743 * does not support u"abc" string literals. 744 * C++11 and C11 require support for UTF-16 literals 745 */ 746 # if U_CPLUSPLUS_VERSION >= 11 || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) 747 # define U_HAVE_CHAR16_T 1 748 # else 749 # define U_HAVE_CHAR16_T 0 750 # endif 751 #endif 752 753 /** 754 * @{ 755 * \def U_DECLARE_UTF16 756 * Do not use this macro because it is not defined on all platforms. 757 * Use the UNICODE_STRING or U_STRING_DECL macros instead. 758 * @internal 759 */ 760 #ifdef U_DECLARE_UTF16 761 /* Use the predefined value. */ 762 #elif U_HAVE_CHAR16_T \ 763 || (defined(__xlC__) && defined(__IBM_UTF_LITERAL) && U_SIZEOF_WCHAR_T != 2) \ 764 || (defined(__HP_aCC) && __HP_aCC >= 035000) \ 765 || (defined(__HP_cc) && __HP_cc >= 111106) 766 # define U_DECLARE_UTF16(string) u ## string 767 #elif U_SIZEOF_WCHAR_T == 2 \ 768 && (U_CHARSET_FAMILY == 0 || (U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400 && defined(__UCS2__))) 769 # define U_DECLARE_UTF16(string) L ## string 770 #else 771 /* Leave U_DECLARE_UTF16 undefined. See unistr.h. */ 772 #endif 773 774 /** @} */ 775 776 /*===========================================================================*/ 777 /** @{ Symbol import-export control */ 778 /*===========================================================================*/ 779 780 #ifdef U_EXPORT 781 /* Use the predefined value. */ 782 #elif defined(U_STATIC_IMPLEMENTATION) 783 # define U_EXPORT 784 #elif defined(__GNUC__) 785 # define U_EXPORT __attribute__((visibility("default"))) 786 #elif (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x550) \ 787 || (defined(__SUNPRO_C) && __SUNPRO_C >= 0x550) 788 # define U_EXPORT __global 789 /*#elif defined(__HP_aCC) || defined(__HP_cc) 790 # define U_EXPORT __declspec(dllexport)*/ 791 #elif defined(_MSC_VER) 792 # define U_EXPORT __declspec(dllexport) 793 #else 794 # define U_EXPORT 795 #endif 796 797 /* U_CALLCONV is releated to U_EXPORT2 */ 798 #ifdef U_EXPORT2 799 /* Use the predefined value. */ 800 #elif defined(_MSC_VER) 801 # define U_EXPORT2 __cdecl 802 #else 803 # define U_EXPORT2 804 #endif 805 806 #ifdef U_IMPORT 807 /* Use the predefined value. */ 808 #elif defined(_MSC_VER) 809 /* Windows needs to export/import data. */ 810 # define U_IMPORT __declspec(dllimport) 811 #else 812 # define U_IMPORT 813 #endif 814 815 /** 816 * \def U_CALLCONV 817 * Similar to U_CDECL_BEGIN/U_CDECL_END, this qualifier is necessary 818 * in callback function typedefs to make sure that the calling convention 819 * is compatible. 820 * 821 * This is only used for non-ICU-API functions. 822 * When a function is a public ICU API, 823 * you must use the U_CAPI and U_EXPORT2 qualifiers. 824 * @stable ICU 2.0 825 */ 826 #if U_PLATFORM == U_PF_OS390 && defined(__cplusplus) 827 # define U_CALLCONV __cdecl 828 #else 829 # define U_CALLCONV U_EXPORT2 830 #endif 831 832 /* @} */ 833 834 #endif 835
