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 |
756 | |