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Side by Side Diff: public/common/unicode/umachine.h

Issue 18836004: Move ICU headers from public/{common,i18n} to source/{common,i18n} (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/icu46.git@master
Patch Set: same as ps #3. retry uploading Created 7 years, 5 months ago
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1 /*
2 ******************************************************************************
3 *
4 * Copyright (C) 1999-2010, International Business Machines
5 * Corporation and others. All Rights Reserved.
6 *
7 ******************************************************************************
8 * file name: umachine.h
9 * encoding: US-ASCII
10 * tab size: 8 (not used)
11 * indentation:4
12 *
13 * created on: 1999sep13
14 * created by: Markus W. Scherer
15 *
16 * This file defines basic types and constants for utf.h to be
17 * platform-independent. umachine.h and utf.h are included into
18 * utypes.h to provide all the general definitions for ICU.
19 * All of these definitions used to be in utypes.h before
20 * the UTF-handling macros made this unmaintainable.
21 */
22
23 #ifndef __UMACHINE_H__
24 #define __UMACHINE_H__
25
26
27 /**
28 * \file
29 * \brief Basic types and constants for UTF
30 *
31 * <h2> Basic types and constants for UTF </h2>
32 * This file defines basic types and constants for utf.h to be
33 * platform-independent. umachine.h and utf.h are included into
34 * utypes.h to provide all the general definitions for ICU.
35 * All of these definitions used to be in utypes.h before
36 * the UTF-handling macros made this unmaintainable.
37 *
38 */
39 /*==========================================================================*/
40 /* Include platform-dependent definitions */
41 /* which are contained in the platform-specific file platform.h */
42 /*==========================================================================*/
43
44 #if defined(U_PALMOS)
45 # include "unicode/ppalmos.h"
46 #elif !defined(__MINGW32__) && (defined(WIN32) || defined(_WIN32) || defined(WIN 64) || defined(_WIN64))
47 #ifdef CYGWINMSVC
48 # include "unicode/platform.h"
49 #endif
50 # include "unicode/pwin32.h"
51 #else
52 # include "unicode/ptypes.h" /* platform.h is included in ptypes.h */
53 #endif
54
55 /*
56 * ANSI C headers:
57 * stddef.h defines wchar_t
58 */
59 #include <stddef.h>
60
61 /*==========================================================================*/
62 /* XP_CPLUSPLUS is a cross-platform symbol which should be defined when */
63 /* using C++. It should not be defined when compiling under C. */
64 /*==========================================================================*/
65
66 #ifdef __cplusplus
67 # ifndef XP_CPLUSPLUS
68 # define XP_CPLUSPLUS
69 # endif
70 #else
71 # undef XP_CPLUSPLUS
72 #endif
73
74 /*==========================================================================*/
75 /* For C wrappers, we use the symbol U_STABLE. */
76 /* This works properly if the includer is C or C++. */
77 /* Functions are declared U_STABLE return-type U_EXPORT2 function-name()... */
78 /*==========================================================================*/
79
80 /**
81 * \def U_CFUNC
82 * This is used in a declaration of a library private ICU C function.
83 * @stable ICU 2.4
84 */
85
86 /**
87 * \def U_CDECL_BEGIN
88 * This is used to begin a declaration of a library private ICU C API.
89 * @stable ICU 2.4
90 */
91
92 /**
93 * \def U_CDECL_END
94 * This is used to end a declaration of a library private ICU C API
95 * @stable ICU 2.4
96 */
97
98 #ifdef XP_CPLUSPLUS
99 # define U_CFUNC extern "C"
100 # define U_CDECL_BEGIN extern "C" {
101 # define U_CDECL_END }
102 #else
103 # define U_CFUNC extern
104 # define U_CDECL_BEGIN
105 # define U_CDECL_END
106 #endif
107
108 /**
109 * \def U_ATTRIBUTE_DEPRECATED
110 * This is used for GCC specific attributes
111 * @internal
112 */
113 #if defined(__GNUC__) && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2) )
114 # define U_ATTRIBUTE_DEPRECATED __attribute__ ((deprecated))
115 /**
116 * \def U_ATTRIBUTE_DEPRECATED
117 * This is used for Visual C++ specific attributes
118 * @internal
119 */
120 #elif defined(U_WINDOWS) && defined(_MSC_VER) && (_MSC_VER >= 1400)
121 # define U_ATTRIBUTE_DEPRECATED __declspec(deprecated)
122 #else
123 # define U_ATTRIBUTE_DEPRECATED
124 #endif
125 /** This is used to declare a function as a public ICU C API @stable ICU 2.0*/
126 #define U_CAPI U_CFUNC U_EXPORT
127 /** This is used to declare a function as a stable public ICU C API*/
128 #define U_STABLE U_CAPI
129 /** This is used to declare a function as a draft public ICU C API */
130 #define U_DRAFT U_CAPI
131 /** This is used to declare a function as a deprecated public ICU C API */
132 #define U_DEPRECATED U_CAPI U_ATTRIBUTE_DEPRECATED
133 /** This is used to declare a function as an obsolete public ICU C API */
134 #define U_OBSOLETE U_CAPI
135 /** This is used to declare a function as an internal ICU C API */
136 #define U_INTERNAL U_CAPI
137
138 /*==========================================================================*/
139 /* limits for int32_t etc., like in POSIX inttypes.h */
140 /*==========================================================================*/
141
142 #ifndef INT8_MIN
143 /** The smallest value an 8 bit signed integer can hold @stable ICU 2.0 */
144 # define INT8_MIN ((int8_t)(-128))
145 #endif
146 #ifndef INT16_MIN
147 /** The smallest value a 16 bit signed integer can hold @stable ICU 2.0 */
148 # define INT16_MIN ((int16_t)(-32767-1))
149 #endif
150 #ifndef INT32_MIN
151 /** The smallest value a 32 bit signed integer can hold @stable ICU 2.0 */
152 # define INT32_MIN ((int32_t)(-2147483647-1))
153 #endif
154
155 #ifndef INT8_MAX
156 /** The largest value an 8 bit signed integer can hold @stable ICU 2.0 */
157 # define INT8_MAX ((int8_t)(127))
158 #endif
159 #ifndef INT16_MAX
160 /** The largest value a 16 bit signed integer can hold @stable ICU 2.0 */
161 # define INT16_MAX ((int16_t)(32767))
162 #endif
163 #ifndef INT32_MAX
164 /** The largest value a 32 bit signed integer can hold @stable ICU 2.0 */
165 # define INT32_MAX ((int32_t)(2147483647))
166 #endif
167
168 #ifndef UINT8_MAX
169 /** The largest value an 8 bit unsigned integer can hold @stable ICU 2.0 */
170 # define UINT8_MAX ((uint8_t)(255U))
171 #endif
172 #ifndef UINT16_MAX
173 /** The largest value a 16 bit unsigned integer can hold @stable ICU 2.0 */
174 # define UINT16_MAX ((uint16_t)(65535U))
175 #endif
176 #ifndef UINT32_MAX
177 /** The largest value a 32 bit unsigned integer can hold @stable ICU 2.0 */
178 # define UINT32_MAX ((uint32_t)(4294967295U))
179 #endif
180
181 #if defined(U_INT64_T_UNAVAILABLE)
182 # error int64_t is required for decimal format and rule-based number format.
183 #else
184 # ifndef INT64_C
185 /**
186 * Provides a platform independent way to specify a signed 64-bit integer consta nt.
187 * note: may be wrong for some 64 bit platforms - ensure your compiler provides INT64_C
188 * @stable ICU 2.8
189 */
190 # define INT64_C(c) c ## LL
191 # endif
192 # ifndef UINT64_C
193 /**
194 * Provides a platform independent way to specify an unsigned 64-bit integer con stant.
195 * note: may be wrong for some 64 bit platforms - ensure your compiler provides UINT64_C
196 * @stable ICU 2.8
197 */
198 # define UINT64_C(c) c ## ULL
199 # endif
200 # ifndef U_INT64_MIN
201 /** The smallest value a 64 bit signed integer can hold @stable ICU 2.8 */
202 # define U_INT64_MIN ((int64_t)(INT64_C(-9223372036854775807)-1))
203 # endif
204 # ifndef U_INT64_MAX
205 /** The largest value a 64 bit signed integer can hold @stable ICU 2.8 */
206 # define U_INT64_MAX ((int64_t)(INT64_C(9223372036854775807)))
207 # endif
208 # ifndef U_UINT64_MAX
209 /** The largest value a 64 bit unsigned integer can hold @stable ICU 2.8 */
210 # define U_UINT64_MAX ((uint64_t)(UINT64_C(18446744073709551615)))
211 # endif
212 #endif
213
214 /*==========================================================================*/
215 /* Boolean data type */
216 /*==========================================================================*/
217
218 /** The ICU boolean type @stable ICU 2.0 */
219 typedef int8_t UBool;
220
221 #ifndef TRUE
222 /** The TRUE value of a UBool @stable ICU 2.0 */
223 # define TRUE 1
224 #endif
225 #ifndef FALSE
226 /** The FALSE value of a UBool @stable ICU 2.0 */
227 # define FALSE 0
228 #endif
229
230
231 /*==========================================================================*/
232 /* Unicode data types */
233 /*==========================================================================*/
234
235 /* wchar_t-related definitions -------------------------------------------- */
236
237 /**
238 * \def U_HAVE_WCHAR_H
239 * Indicates whether <wchar.h> is available (1) or not (0). Set to 1 by default.
240 *
241 * @stable ICU 2.0
242 */
243 #ifndef U_HAVE_WCHAR_H
244 # define U_HAVE_WCHAR_H 1
245 #endif
246
247 /**
248 * \def U_SIZEOF_WCHAR_T
249 * U_SIZEOF_WCHAR_T==sizeof(wchar_t) (0 means it is not defined or autoconf coul d not set it)
250 *
251 * @stable ICU 2.0
252 */
253 #if U_SIZEOF_WCHAR_T==0
254 # undef U_SIZEOF_WCHAR_T
255 # define U_SIZEOF_WCHAR_T 4
256 #endif
257
258 /*
259 * \def U_WCHAR_IS_UTF16
260 * Defined if wchar_t uses UTF-16.
261 *
262 * @stable ICU 2.0
263 */
264 /*
265 * \def U_WCHAR_IS_UTF32
266 * Defined if wchar_t uses UTF-32.
267 *
268 * @stable ICU 2.0
269 */
270 #if !defined(U_WCHAR_IS_UTF16) && !defined(U_WCHAR_IS_UTF32)
271 # ifdef __STDC_ISO_10646__
272 # if (U_SIZEOF_WCHAR_T==2)
273 # define U_WCHAR_IS_UTF16
274 # elif (U_SIZEOF_WCHAR_T==4)
275 # define U_WCHAR_IS_UTF32
276 # endif
277 # elif defined __UCS2__
278 # if (__OS390__ || __OS400__) && (U_SIZEOF_WCHAR_T==2)
279 # define U_WCHAR_IS_UTF16
280 # endif
281 # elif defined __UCS4__
282 # if (U_SIZEOF_WCHAR_T==4)
283 # define U_WCHAR_IS_UTF32
284 # endif
285 # elif defined(U_WINDOWS)
286 # define U_WCHAR_IS_UTF16
287 # endif
288 #endif
289
290 /* UChar and UChar32 definitions -------------------------------------------- */
291
292 /** Number of bytes in a UChar. @stable ICU 2.0 */
293 #define U_SIZEOF_UCHAR 2
294
295 /**
296 * \var UChar
297 * Define UChar to be wchar_t if that is 16 bits wide; always assumed to be unsi gned.
298 * If wchar_t is not 16 bits wide, then define UChar to be uint16_t or char16_t because GCC >=4.4
299 * can handle UTF16 string literals.
300 * This makes the definition of UChar platform-dependent
301 * but allows direct string type compatibility with platforms with
302 * 16-bit wchar_t types.
303 *
304 * @draft ICU 4.4
305 */
306
307 /* Define UChar to be compatible with wchar_t if possible. */
308 #if U_SIZEOF_WCHAR_T==2
309 typedef wchar_t UChar;
310 #elif U_GNUC_UTF16_STRING
311 #if defined _GCC_
312 typedef __CHAR16_TYPE__ char16_t;
313 #endif
314 typedef char16_t UChar;
315 #else
316 typedef uint16_t UChar;
317 #endif
318
319 /**
320 * Define UChar32 as a type for single Unicode code points.
321 * UChar32 is a signed 32-bit integer (same as int32_t).
322 *
323 * The Unicode code point range is 0..0x10ffff.
324 * All other values (negative or >=0x110000) are illegal as Unicode code points.
325 * They may be used as sentinel values to indicate "done", "error"
326 * or similar non-code point conditions.
327 *
328 * Before ICU 2.4 (Jitterbug 2146), UChar32 was defined
329 * to be wchar_t if that is 32 bits wide (wchar_t may be signed or unsigned)
330 * or else to be uint32_t.
331 * That is, the definition of UChar32 was platform-dependent.
332 *
333 * @see U_SENTINEL
334 * @stable ICU 2.4
335 */
336 typedef int32_t UChar32;
337
338 /*==========================================================================*/
339 /* U_INLINE and U_ALIGN_CODE Set default values if these are not already */
340 /* defined. Definitions normally are in */
341 /* platform.h or the corresponding file for */
342 /* the OS in use. */
343 /*==========================================================================*/
344
345 #ifndef U_HIDE_INTERNAL_API
346
347 /**
348 * \def U_ALIGN_CODE
349 * This is used to align code fragments to a specific byte boundary.
350 * This is useful for getting consistent performance test results.
351 * @internal
352 */
353 #ifndef U_ALIGN_CODE
354 # define U_ALIGN_CODE(n)
355 #endif
356
357 #endif /* U_HIDE_INTERNAL_API */
358
359 /**
360 * \def U_INLINE
361 * This is used to request inlining of a function, on platforms and languages wh ich support it.
362 */
363
364 #ifndef U_INLINE
365 # ifdef XP_CPLUSPLUS
366 # define U_INLINE inline
367 # else
368 # define U_INLINE
369 # endif
370 #endif
371
372 #include "unicode/urename.h"
373
374 #endif
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