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#elif U_PLATFORM == U_PF_ANDROID 343# define U_HAVE_STD_STRING 0 344#else 345# define U_HAVE_STD_STRING 1 346#endif 347 348/*===========================================================================*/ 349/** @{ Compiler and environment features */ 350/*===========================================================================*/ 351 352/** 353 * \def U_GCC_MAJOR_MINOR 354 * Indicates whether the compiler is gcc (test for != 0), 355 * and if so, contains its major (times 100) and minor version numbers. 356 * If the compiler is not gcc, then U_GCC_MAJOR_MINOR == 0. 357 * 358 * For example, for testing for whether we have gcc, and whether it's 4.6 or higher, 359 * use "#if U_GCC_MAJOR_MINOR >= 406". 360 * @internal 361 */ 362#ifdef __GNUC__ 363# define U_GCC_MAJOR_MINOR (__GNUC__ * 100 + __GNUC_MINOR__) 364#else 365# define U_GCC_MAJOR_MINOR 0 366#endif 367 368/** 369 * \def U_IS_BIG_ENDIAN 370 * Determines the endianness of the platform. 371 * @internal 372 */ 373#ifdef U_IS_BIG_ENDIAN 374 /* Use the predefined value. */ 375#elif defined(BYTE_ORDER) && defined(BIG_ENDIAN) 376# define U_IS_BIG_ENDIAN (BYTE_ORDER == BIG_ENDIAN) 377#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) 378 /* gcc */ 379# define U_IS_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) 380#elif defined(__BIG_ENDIAN__) || defined(_BIG_ENDIAN) 381# define U_IS_BIG_ENDIAN 1 382#elif defined(__LITTLE_ENDIAN__) || defined(_LITTLE_ENDIAN) 383# define U_IS_BIG_ENDIAN 0 384#elif U_PLATFORM == U_PF_OS390 || U_PLATFORM == U_PF_OS400 || defined(__s390__) || defined(__s390x__) 385 /* These platforms do not appear to predefine any endianness macros. */ 386# define U_IS_BIG_ENDIAN 1 387#elif defined(_PA_RISC1_0) || defined(_PA_RISC1_1) || defined(_PA_RISC2_0) 388 /* HPPA do not appear to predefine any endianness macros. */ 389# define U_IS_BIG_ENDIAN 1 390#elif defined(sparc) || defined(__sparc) || defined(__sparc__) 391 /* Some sparc based systems (e.g. Linux) do not predefine any endianness macros. */ 392# define U_IS_BIG_ENDIAN 1 393#else 394# define U_IS_BIG_ENDIAN 0 395#endif 396 397/** 398 * \def U_HAVE_PLACEMENT_NEW 399 * Determines whether to override placement new and delete for STL. 400 * @stable ICU 2.6 401 */ 402#ifdef U_HAVE_PLACEMENT_NEW 403 /* Use the predefined value. */ 404#elif defined(__BORLANDC__) 405# define U_HAVE_PLACEMENT_NEW 0 406#else 407# define U_HAVE_PLACEMENT_NEW 1 408#endif 409 410/** 411 * \def U_HAVE_DEBUG_LOCATION_NEW 412 * Define this to define the MFC debug version of the operator new. 413 * 414 * @stable ICU 3.4 415 */ 416#ifdef U_HAVE_DEBUG_LOCATION_NEW 417 /* Use the predefined value. */ 418#elif defined(_MSC_VER) 419# define U_HAVE_DEBUG_LOCATION_NEW 1 420#else 421# define U_HAVE_DEBUG_LOCATION_NEW 0 422#endif 423 424/* Compatibility with non clang compilers */ 425#ifndef __has_attribute 426# define __has_attribute(x) 0 427#endif 428 429/** 430 * \def U_MALLOC_ATTR 431 * Attribute to mark functions as malloc-like 432 * @internal 433 */ 434#if defined(__GNUC__) && __GNUC__>=3 435# define U_MALLOC_ATTR __attribute__ ((__malloc__)) 436#else 437# define U_MALLOC_ATTR 438#endif 439 440/** 441 * \def U_ALLOC_SIZE_ATTR 442 * Attribute to specify the size of the allocated buffer for malloc-like functions 443 * @internal 444 */ 445#if (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) || __has_attribute(alloc_size) 446# define U_ALLOC_SIZE_ATTR(X) __attribute__ ((alloc_size(X))) 447# define U_ALLOC_SIZE_ATTR2(X,Y) __attribute__ ((alloc_size(X,Y))) 448#else 449# define U_ALLOC_SIZE_ATTR(X) 450# define U_ALLOC_SIZE_ATTR2(X,Y) 451#endif 452 453/** @} */ 454 455/*===========================================================================*/ 456/** @{ Character data types */ 457/*===========================================================================*/ 458 459/** 460 * U_CHARSET_FAMILY is equal to this value when the platform is an ASCII based platform. 461 * @stable ICU 2.0 462 */ 463#define U_ASCII_FAMILY 0 464 465/** 466 * U_CHARSET_FAMILY is equal to this value when the platform is an EBCDIC based platform. 467 * @stable ICU 2.0 468 */ 469#define U_EBCDIC_FAMILY 1 470 471/** 472 * \def U_CHARSET_FAMILY 473 * 474 * <p>These definitions allow to specify the encoding of text 475 * in the char data type as defined by the platform and the compiler. 476 * It is enough to determine the code point values of "invariant characters", 477 * which are the ones shared by all encodings that are in use 478 * on a given platform.</p> 479 * 480 * <p>Those "invariant characters" should be all the uppercase and lowercase 481 * latin letters, the digits, the space, and "basic punctuation". 482 * Also, '\\n', '\\r', '\\t' should be available.</p> 483 * 484 * <p>The list of "invariant characters" is:<br> 485 * \code 486 * A-Z a-z 0-9 SPACE " % & ' ( ) * + , - . / : ; < = > ? _ 487 * \endcode 488 * <br> 489 * (52 letters + 10 numbers + 20 punc/sym/space = 82 total)</p> 490 * 491 * <p>This matches the IBM Syntactic Character Set (CS 640).</p> 492 * 493 * <p>In other words, all the graphic characters in 7-bit ASCII should 494 * be safely accessible except the following:</p> 495 * 496 * \code 497 * '\' <backslash> 498 * '[' <left bracket> 499 * ']' <right bracket> 500 * '{' <left brace> 501 * '}' <right brace> 502 * '^' <circumflex> 503 * '~' <tilde> 504 * '!' <exclamation mark> 505 * '#' <number sign> 506 * '|' <vertical line> 507 * '$' <dollar sign> 508 * '@' <commercial at> 509 * '`' <grave accent> 510 * \endcode 511 * @stable ICU 2.0 512 */ 513#ifdef U_CHARSET_FAMILY 514 /* Use the predefined value. */ 515#elif U_PLATFORM == U_PF_OS390 && (!defined(__CHARSET_LIB) || !__CHARSET_LIB) 516# define U_CHARSET_FAMILY U_EBCDIC_FAMILY 517#elif U_PLATFORM == U_PF_OS400 && !defined(__UTF32__) 518# define U_CHARSET_FAMILY U_EBCDIC_FAMILY 519#else 520# define U_CHARSET_FAMILY U_ASCII_FAMILY 521#endif 522 523/** 524 * \def U_CHARSET_IS_UTF8 525 * 526 * Hardcode the default charset to UTF-8. 527 * 528 * If this is set to 1, then 529 * - ICU will assume that all non-invariant char*, StringPiece, std::string etc. 530 * contain UTF-8 text, regardless of what the system API uses 531 * - some ICU code will use fast functions like u_strFromUTF8() 532 * rather than the more general and more heavy-weight conversion API (ucnv.h) 533 * - ucnv_getDefaultName() always returns "UTF-8" 534 * - ucnv_setDefaultName() is disabled and will not change the default charset 535 * - static builds of ICU are smaller 536 * - more functionality is available with the UCONFIG_NO_CONVERSION build-time 537 * configuration option (see unicode/uconfig.h) 538 * - the UCONFIG_NO_CONVERSION build option in uconfig.h is more usable 539 * 540 * @stable ICU 4.2 541 * @see UCONFIG_NO_CONVERSION 542 */ 543#ifdef U_CHARSET_IS_UTF8 544 /* Use the predefined value. */ 545#elif U_PLATFORM == U_PF_ANDROID || U_PLATFORM_IS_DARWIN_BASED 546# define U_CHARSET_IS_UTF8 1 547#elif U_PLATFORM_IS_LINUX_BASED 548 /* 549 * Google-specific: Set to 1 to match the google3 execution environment's 550 * use of UTF-8, on both Linux server and workstation machines. 551 */ 552# define U_CHARSET_IS_UTF8 1 553#else 554# define U_CHARSET_IS_UTF8 0 555#endif 556 557/** @} */ 558 559/*===========================================================================*/ 560/** @{ Information about wchar support */ 561/*===========================================================================*/ 562 563/** 564 * \def U_HAVE_WCHAR_H 565 * Indicates whether <wchar.h> is available (1) or not (0). Set to 1 by default. 566 * 567 * @stable ICU 2.0 568 */ 569#ifdef U_HAVE_WCHAR_H 570 /* Use the predefined value. */ 571#elif U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9 572 /* 573 * Android before Gingerbread (Android 2.3, API level 9) did not support wchar_t. 574 * The type and header existed, but the library functions did not work as expected. 575 * The size of wchar_t was 1 but L"xyz" string literals had 32-bit units anyway. 576 */ 577# define U_HAVE_WCHAR_H 0 578#else 579# define U_HAVE_WCHAR_H 1 580#endif 581 582/** 583 * \def U_SIZEOF_WCHAR_T 584 * U_SIZEOF_WCHAR_T==sizeof(wchar_t) 585 * 586 * @stable ICU 2.0 587 */ 588#ifdef U_SIZEOF_WCHAR_T 589 /* Use the predefined value. */ 590#elif (U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9) || U_PLATFORM == U_PF_CLASSIC_MACOS 591 /* 592 * Classic Mac OS and Mac OS X before 10.3 (Panther) did not support wchar_t or wstring. 593 * Newer Mac OS X has size 4. 594 */ 595# define U_SIZEOF_WCHAR_T 1 596#elif U_PLATFORM_HAS_WIN32_API || U_PLATFORM == U_PF_CYGWIN 597# define U_SIZEOF_WCHAR_T 2 598#elif U_PLATFORM == U_PF_AIX 599 /* 600 * AIX 6.1 information, section "Wide character data representation": 601 * "... the wchar_t datatype is 32-bit in the 64-bit environment and 602 * 16-bit in the 32-bit environment." 603 * and 604 * "All locales use Unicode for their wide character code values (process code), 605 * except the IBM-eucTW codeset." 606 */ 607# ifdef __64BIT__ 608# define U_SIZEOF_WCHAR_T 4 609# else 610# define U_SIZEOF_WCHAR_T 2 611# endif 612#elif U_PLATFORM == U_PF_OS390 613 /* 614 * z/OS V1R11 information center, section "LP64 | ILP32": 615 * "In 31-bit mode, the size of long and pointers is 4 bytes and the size of wchar_t is 2 bytes. 616 * Under LP64, the size of long and pointer is 8 bytes and the size of wchar_t is 4 bytes." 617 */ 618# ifdef _LP64 619# define U_SIZEOF_WCHAR_T 4 620# else 621# define U_SIZEOF_WCHAR_T 2 622# endif 623#elif U_PLATFORM == U_PF_OS400 624# if defined(__UTF32__) 625 /* 626 * LOCALETYPE(*LOCALEUTF) is specified. 627 * Wide-character strings are in UTF-32, 628 * narrow-character strings are in UTF-8. 629 */ 630# define U_SIZEOF_WCHAR_T 4 631# elif defined(__UCS2__) 632 /* 633 * LOCALETYPE(*LOCALEUCS2) is specified. 634 * Wide-character strings are in UCS-2, 635 * narrow-character strings are in EBCDIC. 636 */ 637# define U_SIZEOF_WCHAR_T 2 638#else 639 /* 640 * LOCALETYPE(*CLD) or LOCALETYPE(*LOCALE) is specified. 641 * Wide-character strings are in 16-bit EBCDIC, 642 * narrow-character strings are in EBCDIC. 643 */ 644# define U_SIZEOF_WCHAR_T 2 645# endif 646#else 647# define U_SIZEOF_WCHAR_T 4 648#endif 649 650#ifndef U_HAVE_WCSCPY 651#define U_HAVE_WCSCPY U_HAVE_WCHAR_H 652#endif 653 654/** @} */ 655 656/** 657 * \def U_HAVE_CHAR16_T 658 * Defines whether the char16_t type is available for UTF-16 659 * and u"abc" UTF-16 string literals are supported. 660 * This is a new standard type and standard string literal syntax in C++0x 661 * but has been available in some compilers before. 662 * @internal 663 */ 664#ifdef U_HAVE_CHAR16_T 665 /* Use the predefined value. */ 666#else 667 /* 668 * Notes: 669 * Visual Studio 10 (_MSC_VER>=1600) defines char16_t but 670 * does not support u"abc" string literals. 671 * gcc 4.4 defines the __CHAR16_TYPE__ macro to a usable type but 672 * does not support u"abc" string literals. 673 * C++11 and C11 require support for UTF-16 literals 674 */ 675# if (defined(__cplusplus) && __cplusplus >= 201103L) || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) 676# define U_HAVE_CHAR16_T 1 677# else 678# define U_HAVE_CHAR16_T 0 679# endif 680#endif 681 682/** 683 * @{ 684 * \def U_DECLARE_UTF16 685 * Do not use this macro because it is not defined on all platforms. 686 * Use the UNICODE_STRING or U_STRING_DECL macros instead. 687 * @internal 688 */ 689#ifdef U_DECLARE_UTF16 690 /* Use the predefined value. */ 691#elif U_HAVE_CHAR16_T \ 692 || (defined(__xlC__) && defined(__IBM_UTF_LITERAL) && U_SIZEOF_WCHAR_T != 2) \ 693 || (defined(__HP_aCC) && __HP_aCC >= 035000) \ 694 || (defined(__HP_cc) && __HP_cc >= 111106) 695# define U_DECLARE_UTF16(string) u ## string 696#elif U_SIZEOF_WCHAR_T == 2 \ 697 && (U_CHARSET_FAMILY == 0 || (U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400 && defined(__UCS2__))) 698# define U_DECLARE_UTF16(string) L ## string 699#else 700 /* Leave U_DECLARE_UTF16 undefined. See unistr.h. */ 701#endif 702 703/** @} */ 704 705/*===========================================================================*/ 706/** @{ Symbol import-export control */ 707/*===========================================================================*/ 708 709#ifdef U_EXPORT 710 /* Use the predefined value. */ 711#elif defined(U_STATIC_IMPLEMENTATION) 712# define U_EXPORT 713#elif defined(__GNUC__) 714# define U_EXPORT __attribute__((visibility("default"))) 715#elif (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x550) \ 716 || (defined(__SUNPRO_C) && __SUNPRO_C >= 0x550) 717# define U_EXPORT __global 718/*#elif defined(__HP_aCC) || defined(__HP_cc) 719# define U_EXPORT __declspec(dllexport)*/ 720#elif defined(_MSC_VER) 721# define U_EXPORT __declspec(dllexport) 722#else 723# define U_EXPORT 724#endif 725 726/* U_CALLCONV is releated to U_EXPORT2 */ 727#ifdef U_EXPORT2 728 /* Use the predefined value. */ 729#elif defined(_MSC_VER) 730# define U_EXPORT2 __cdecl 731#else 732# define U_EXPORT2 733#endif 734 735#ifdef U_IMPORT 736 /* Use the predefined value. */ 737#elif defined(_MSC_VER) 738 /* Windows needs to export/import data. */ 739# define U_IMPORT __declspec(dllimport) 740#else 741# define U_IMPORT 742#endif 743 744/** 745 * \def U_CALLCONV 746 * Similar to U_CDECL_BEGIN/U_CDECL_END, this qualifier is necessary 747 * in callback function typedefs to make sure that the calling convention 748 * is compatible. 749 * 750 * This is only used for non-ICU-API functions. 751 * When a function is a public ICU API, 752 * you must use the U_CAPI and U_EXPORT2 qualifiers. 753 * @stable ICU 2.0 754 */ 755#if U_PLATFORM == U_PF_OS390 && defined(__cplusplus) 756# define U_CALLCONV __cdecl 757#else 758# define U_CALLCONV U_EXPORT2 759#endif 760 761/* @} */ 762 763#endif 764