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f6ea5628 DJ |
1 | /* A substitute for ISO C99 <wchar.h>, for platforms that have issues. |
2 | ||
7b6bb8da | 3 | Copyright (C) 2007-2011 Free Software Foundation, Inc. |
f6ea5628 DJ |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
4c38e0a4 | 7 | the Free Software Foundation; either version 3, or (at your option) |
f6ea5628 DJ |
8 | any later version. |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software Foundation, | |
17 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
18 | ||
19 | /* Written by Eric Blake. */ | |
20 | ||
21 | /* | |
22 | * ISO C 99 <wchar.h> for platforms that have issues. | |
23 | * <http://www.opengroup.org/susv3xbd/wchar.h.html> | |
24 | * | |
25 | * For now, this just ensures proper prerequisite inclusion order and | |
26 | * the declaration of wcwidth(). | |
27 | */ | |
28 | ||
f434ba03 PA |
29 | #if __GNUC__ >= 3 |
30 | @PRAGMA_SYSTEM_HEADER@ | |
31 | #endif | |
32 | ||
33 | #if defined __need_mbstate_t || defined __need_wint_t || (defined __hpux && ((defined _INTTYPES_INCLUDED && !defined strtoimax) || defined _GL_JUST_INCLUDE_SYSTEM_WCHAR_H)) || defined _GL_ALREADY_INCLUDING_WCHAR_H | |
34 | /* Special invocation convention: | |
35 | - Inside glibc and uClibc header files. | |
36 | - On HP-UX 11.00 we have a sequence of nested includes | |
37 | <wchar.h> -> <stdlib.h> -> <stdint.h>, and the latter includes <wchar.h>, | |
38 | once indirectly <stdint.h> -> <sys/types.h> -> <inttypes.h> -> <wchar.h> | |
39 | and once directly. In both situations 'wint_t' is not yet defined, | |
40 | therefore we cannot provide the function overrides; instead include only | |
41 | the system's <wchar.h>. | |
42 | - On IRIX 6.5, similarly, we have an include <wchar.h> -> <wctype.h>, and | |
43 | the latter includes <wchar.h>. But here, we have no way to detect whether | |
44 | <wctype.h> is completely included or is still being included. */ | |
45 | ||
46 | #@INCLUDE_NEXT@ @NEXT_WCHAR_H@ | |
47 | ||
48 | #else | |
49 | /* Normal invocation convention. */ | |
50 | ||
f6ea5628 DJ |
51 | #ifndef _GL_WCHAR_H |
52 | ||
f434ba03 PA |
53 | #define _GL_ALREADY_INCLUDING_WCHAR_H |
54 | ||
f6ea5628 DJ |
55 | /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before |
56 | <wchar.h>. | |
57 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be | |
f434ba03 PA |
58 | included before <wchar.h>. |
59 | But avoid namespace pollution on glibc systems. */ | |
60 | #ifndef __GLIBC__ | |
61 | # include <stddef.h> | |
62 | # include <stdio.h> | |
63 | # include <time.h> | |
64 | #endif | |
f6ea5628 DJ |
65 | |
66 | /* Include the original <wchar.h> if it exists. | |
67 | Some builds of uClibc lack it. */ | |
68 | /* The include_next requires a split double-inclusion guard. */ | |
69 | #if @HAVE_WCHAR_H@ | |
70 | # @INCLUDE_NEXT@ @NEXT_WCHAR_H@ | |
71 | #endif | |
72 | ||
f434ba03 PA |
73 | #undef _GL_ALREADY_INCLUDING_WCHAR_H |
74 | ||
f6ea5628 DJ |
75 | #ifndef _GL_WCHAR_H |
76 | #define _GL_WCHAR_H | |
77 | ||
f434ba03 PA |
78 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
79 | ||
80 | /* The definition of _GL_ARG_NONNULL is copied here. */ | |
81 | ||
82 | /* The definition of _GL_WARN_ON_USE is copied here. */ | |
83 | ||
84 | ||
85 | /* Define wint_t and WEOF. (Also done in wctype.in.h.) */ | |
86 | #if !@HAVE_WINT_T@ && !defined wint_t | |
87 | # define wint_t int | |
88 | # ifndef WEOF | |
89 | # define WEOF -1 | |
90 | # endif | |
91 | #else | |
92 | # ifndef WEOF | |
93 | # define WEOF ((wint_t) -1) | |
94 | # endif | |
95 | #endif | |
96 | ||
97 | ||
98 | /* Override mbstate_t if it is too small. | |
99 | On IRIX 6.5, sizeof (mbstate_t) == 1, which is not sufficient for | |
100 | implementing mbrtowc for encodings like UTF-8. */ | |
101 | #if !(@HAVE_MBSINIT@ && @HAVE_MBRTOWC@) || @REPLACE_MBSTATE_T@ | |
102 | typedef int rpl_mbstate_t; | |
103 | # undef mbstate_t | |
104 | # define mbstate_t rpl_mbstate_t | |
105 | # define GNULIB_defined_mbstate_t 1 | |
106 | #endif | |
107 | ||
108 | ||
109 | /* Convert a single-byte character to a wide character. */ | |
110 | #if @GNULIB_BTOWC@ | |
111 | # if @REPLACE_BTOWC@ | |
112 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
113 | # undef btowc | |
114 | # define btowc rpl_btowc | |
115 | # endif | |
116 | _GL_FUNCDECL_RPL (btowc, wint_t, (int c)); | |
117 | _GL_CXXALIAS_RPL (btowc, wint_t, (int c)); | |
118 | # else | |
119 | # if !@HAVE_BTOWC@ | |
120 | _GL_FUNCDECL_SYS (btowc, wint_t, (int c)); | |
121 | # endif | |
122 | _GL_CXXALIAS_SYS (btowc, wint_t, (int c)); | |
123 | # endif | |
124 | _GL_CXXALIASWARN (btowc); | |
125 | #elif defined GNULIB_POSIXCHECK | |
126 | # undef btowc | |
127 | # if HAVE_RAW_DECL_BTOWC | |
128 | _GL_WARN_ON_USE (btowc, "btowc is unportable - " | |
129 | "use gnulib module btowc for portability"); | |
130 | # endif | |
131 | #endif | |
132 | ||
f6ea5628 | 133 | |
f434ba03 PA |
134 | /* Convert a wide character to a single-byte character. */ |
135 | #if @GNULIB_WCTOB@ | |
136 | # if @REPLACE_WCTOB@ | |
137 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
138 | # undef wctob | |
139 | # define wctob rpl_wctob | |
140 | # endif | |
141 | _GL_FUNCDECL_RPL (wctob, int, (wint_t wc)); | |
142 | _GL_CXXALIAS_RPL (wctob, int, (wint_t wc)); | |
143 | # else | |
144 | # if !defined wctob && !@HAVE_DECL_WCTOB@ | |
145 | /* wctob is provided by gnulib, or wctob exists but is not declared. */ | |
146 | _GL_FUNCDECL_SYS (wctob, int, (wint_t wc)); | |
147 | # endif | |
148 | _GL_CXXALIAS_SYS (wctob, int, (wint_t wc)); | |
149 | # endif | |
150 | _GL_CXXALIASWARN (wctob); | |
151 | #elif defined GNULIB_POSIXCHECK | |
152 | # undef wctob | |
153 | # if HAVE_RAW_DECL_WCTOB | |
154 | _GL_WARN_ON_USE (wctob, "wctob is unportable - " | |
155 | "use gnulib module wctob for portability"); | |
156 | # endif | |
157 | #endif | |
158 | ||
159 | ||
160 | /* Test whether *PS is in the initial state. */ | |
161 | #if @GNULIB_MBSINIT@ | |
162 | # if @REPLACE_MBSINIT@ | |
163 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
164 | # undef mbsinit | |
165 | # define mbsinit rpl_mbsinit | |
166 | # endif | |
167 | _GL_FUNCDECL_RPL (mbsinit, int, (const mbstate_t *ps)); | |
168 | _GL_CXXALIAS_RPL (mbsinit, int, (const mbstate_t *ps)); | |
169 | # else | |
170 | # if !@HAVE_MBSINIT@ | |
171 | _GL_FUNCDECL_SYS (mbsinit, int, (const mbstate_t *ps)); | |
172 | # endif | |
173 | _GL_CXXALIAS_SYS (mbsinit, int, (const mbstate_t *ps)); | |
174 | # endif | |
175 | _GL_CXXALIASWARN (mbsinit); | |
176 | #elif defined GNULIB_POSIXCHECK | |
177 | # undef mbsinit | |
178 | # if HAVE_RAW_DECL_MBSINIT | |
179 | _GL_WARN_ON_USE (mbsinit, "mbsinit is unportable - " | |
180 | "use gnulib module mbsinit for portability"); | |
181 | # endif | |
182 | #endif | |
183 | ||
184 | ||
185 | /* Convert a multibyte character to a wide character. */ | |
186 | #if @GNULIB_MBRTOWC@ | |
187 | # if @REPLACE_MBRTOWC@ | |
188 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
189 | # undef mbrtowc | |
190 | # define mbrtowc rpl_mbrtowc | |
191 | # endif | |
192 | _GL_FUNCDECL_RPL (mbrtowc, size_t, | |
193 | (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)); | |
194 | _GL_CXXALIAS_RPL (mbrtowc, size_t, | |
195 | (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)); | |
196 | # else | |
197 | # if !@HAVE_MBRTOWC@ | |
198 | _GL_FUNCDECL_SYS (mbrtowc, size_t, | |
199 | (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)); | |
200 | # endif | |
201 | _GL_CXXALIAS_SYS (mbrtowc, size_t, | |
202 | (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)); | |
203 | # endif | |
204 | _GL_CXXALIASWARN (mbrtowc); | |
205 | #elif defined GNULIB_POSIXCHECK | |
206 | # undef mbrtowc | |
207 | # if HAVE_RAW_DECL_MBRTOWC | |
208 | _GL_WARN_ON_USE (mbrtowc, "mbrtowc is unportable - " | |
209 | "use gnulib module mbrtowc for portability"); | |
210 | # endif | |
211 | #endif | |
212 | ||
213 | ||
214 | /* Recognize a multibyte character. */ | |
215 | #if @GNULIB_MBRLEN@ | |
216 | # if @REPLACE_MBRLEN@ | |
217 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
218 | # undef mbrlen | |
219 | # define mbrlen rpl_mbrlen | |
220 | # endif | |
221 | _GL_FUNCDECL_RPL (mbrlen, size_t, (const char *s, size_t n, mbstate_t *ps)); | |
222 | _GL_CXXALIAS_RPL (mbrlen, size_t, (const char *s, size_t n, mbstate_t *ps)); | |
223 | # else | |
224 | # if !@HAVE_MBRLEN@ | |
225 | _GL_FUNCDECL_SYS (mbrlen, size_t, (const char *s, size_t n, mbstate_t *ps)); | |
226 | # endif | |
227 | _GL_CXXALIAS_SYS (mbrlen, size_t, (const char *s, size_t n, mbstate_t *ps)); | |
228 | # endif | |
229 | _GL_CXXALIASWARN (mbrlen); | |
230 | #elif defined GNULIB_POSIXCHECK | |
231 | # undef mbrlen | |
232 | # if HAVE_RAW_DECL_MBRLEN | |
233 | _GL_WARN_ON_USE (mbrlen, "mbrlen is unportable - " | |
234 | "use gnulib module mbrlen for portability"); | |
235 | # endif | |
236 | #endif | |
237 | ||
238 | ||
239 | /* Convert a string to a wide string. */ | |
240 | #if @GNULIB_MBSRTOWCS@ | |
241 | # if @REPLACE_MBSRTOWCS@ | |
242 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
243 | # undef mbsrtowcs | |
244 | # define mbsrtowcs rpl_mbsrtowcs | |
245 | # endif | |
246 | _GL_FUNCDECL_RPL (mbsrtowcs, size_t, | |
247 | (wchar_t *dest, const char **srcp, size_t len, mbstate_t *ps) | |
248 | _GL_ARG_NONNULL ((2))); | |
249 | _GL_CXXALIAS_RPL (mbsrtowcs, size_t, | |
250 | (wchar_t *dest, const char **srcp, size_t len, | |
251 | mbstate_t *ps)); | |
252 | # else | |
253 | # if !@HAVE_MBSRTOWCS@ | |
254 | _GL_FUNCDECL_SYS (mbsrtowcs, size_t, | |
255 | (wchar_t *dest, const char **srcp, size_t len, mbstate_t *ps) | |
256 | _GL_ARG_NONNULL ((2))); | |
257 | # endif | |
258 | _GL_CXXALIAS_SYS (mbsrtowcs, size_t, | |
259 | (wchar_t *dest, const char **srcp, size_t len, | |
260 | mbstate_t *ps)); | |
261 | # endif | |
262 | _GL_CXXALIASWARN (mbsrtowcs); | |
263 | #elif defined GNULIB_POSIXCHECK | |
264 | # undef mbsrtowcs | |
265 | # if HAVE_RAW_DECL_MBSRTOWCS | |
266 | _GL_WARN_ON_USE (mbsrtowcs, "mbsrtowcs is unportable - " | |
267 | "use gnulib module mbsrtowcs for portability"); | |
268 | # endif | |
269 | #endif | |
270 | ||
271 | ||
272 | /* Convert a string to a wide string. */ | |
273 | #if @GNULIB_MBSNRTOWCS@ | |
274 | # if @REPLACE_MBSNRTOWCS@ | |
275 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
276 | # undef mbsnrtowcs | |
277 | # define mbsnrtowcs rpl_mbsnrtowcs | |
278 | # endif | |
279 | _GL_FUNCDECL_RPL (mbsnrtowcs, size_t, | |
280 | (wchar_t *dest, const char **srcp, size_t srclen, size_t len, | |
281 | mbstate_t *ps) | |
282 | _GL_ARG_NONNULL ((2))); | |
283 | _GL_CXXALIAS_RPL (mbsnrtowcs, size_t, | |
284 | (wchar_t *dest, const char **srcp, size_t srclen, size_t len, | |
285 | mbstate_t *ps)); | |
286 | # else | |
287 | # if !@HAVE_MBSNRTOWCS@ | |
288 | _GL_FUNCDECL_SYS (mbsnrtowcs, size_t, | |
289 | (wchar_t *dest, const char **srcp, size_t srclen, size_t len, | |
290 | mbstate_t *ps) | |
291 | _GL_ARG_NONNULL ((2))); | |
292 | # endif | |
293 | _GL_CXXALIAS_SYS (mbsnrtowcs, size_t, | |
294 | (wchar_t *dest, const char **srcp, size_t srclen, size_t len, | |
295 | mbstate_t *ps)); | |
296 | # endif | |
297 | _GL_CXXALIASWARN (mbsnrtowcs); | |
298 | #elif defined GNULIB_POSIXCHECK | |
299 | # undef mbsnrtowcs | |
300 | # if HAVE_RAW_DECL_MBSNRTOWCS | |
301 | _GL_WARN_ON_USE (mbsnrtowcs, "mbsnrtowcs is unportable - " | |
302 | "use gnulib module mbsnrtowcs for portability"); | |
303 | # endif | |
304 | #endif | |
305 | ||
306 | ||
307 | /* Convert a wide character to a multibyte character. */ | |
308 | #if @GNULIB_WCRTOMB@ | |
309 | # if @REPLACE_WCRTOMB@ | |
310 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
311 | # undef wcrtomb | |
312 | # define wcrtomb rpl_wcrtomb | |
313 | # endif | |
314 | _GL_FUNCDECL_RPL (wcrtomb, size_t, (char *s, wchar_t wc, mbstate_t *ps)); | |
315 | _GL_CXXALIAS_RPL (wcrtomb, size_t, (char *s, wchar_t wc, mbstate_t *ps)); | |
316 | # else | |
317 | # if !@HAVE_WCRTOMB@ | |
318 | _GL_FUNCDECL_SYS (wcrtomb, size_t, (char *s, wchar_t wc, mbstate_t *ps)); | |
319 | # endif | |
320 | _GL_CXXALIAS_SYS (wcrtomb, size_t, (char *s, wchar_t wc, mbstate_t *ps)); | |
321 | # endif | |
322 | _GL_CXXALIASWARN (wcrtomb); | |
323 | #elif defined GNULIB_POSIXCHECK | |
324 | # undef wcrtomb | |
325 | # if HAVE_RAW_DECL_WCRTOMB | |
326 | _GL_WARN_ON_USE (wcrtomb, "wcrtomb is unportable - " | |
327 | "use gnulib module wcrtomb for portability"); | |
328 | # endif | |
329 | #endif | |
330 | ||
331 | ||
332 | /* Convert a wide string to a string. */ | |
333 | #if @GNULIB_WCSRTOMBS@ | |
334 | # if @REPLACE_WCSRTOMBS@ | |
335 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
336 | # undef wcsrtombs | |
337 | # define wcsrtombs rpl_wcsrtombs | |
338 | # endif | |
339 | _GL_FUNCDECL_RPL (wcsrtombs, size_t, | |
340 | (char *dest, const wchar_t **srcp, size_t len, mbstate_t *ps) | |
341 | _GL_ARG_NONNULL ((2))); | |
342 | _GL_CXXALIAS_RPL (wcsrtombs, size_t, | |
343 | (char *dest, const wchar_t **srcp, size_t len, | |
344 | mbstate_t *ps)); | |
345 | # else | |
346 | # if !@HAVE_WCSRTOMBS@ | |
347 | _GL_FUNCDECL_SYS (wcsrtombs, size_t, | |
348 | (char *dest, const wchar_t **srcp, size_t len, mbstate_t *ps) | |
349 | _GL_ARG_NONNULL ((2))); | |
350 | # endif | |
351 | _GL_CXXALIAS_SYS (wcsrtombs, size_t, | |
352 | (char *dest, const wchar_t **srcp, size_t len, | |
353 | mbstate_t *ps)); | |
354 | # endif | |
355 | _GL_CXXALIASWARN (wcsrtombs); | |
356 | #elif defined GNULIB_POSIXCHECK | |
357 | # undef wcsrtombs | |
358 | # if HAVE_RAW_DECL_WCSRTOMBS | |
359 | _GL_WARN_ON_USE (wcsrtombs, "wcsrtombs is unportable - " | |
360 | "use gnulib module wcsrtombs for portability"); | |
361 | # endif | |
362 | #endif | |
363 | ||
364 | ||
365 | /* Convert a wide string to a string. */ | |
366 | #if @GNULIB_WCSNRTOMBS@ | |
367 | # if @REPLACE_WCSNRTOMBS@ | |
368 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
369 | # undef wcsnrtombs | |
370 | # define wcsnrtombs rpl_wcsnrtombs | |
371 | # endif | |
372 | _GL_FUNCDECL_RPL (wcsnrtombs, size_t, | |
373 | (char *dest, const wchar_t **srcp, size_t srclen, size_t len, | |
374 | mbstate_t *ps) | |
375 | _GL_ARG_NONNULL ((2))); | |
376 | _GL_CXXALIAS_RPL (wcsnrtombs, size_t, | |
377 | (char *dest, const wchar_t **srcp, size_t srclen, size_t len, | |
378 | mbstate_t *ps)); | |
379 | # else | |
380 | # if !@HAVE_WCSNRTOMBS@ | |
381 | _GL_FUNCDECL_SYS (wcsnrtombs, size_t, | |
382 | (char *dest, const wchar_t **srcp, size_t srclen, size_t len, | |
383 | mbstate_t *ps) | |
384 | _GL_ARG_NONNULL ((2))); | |
385 | # endif | |
386 | _GL_CXXALIAS_SYS (wcsnrtombs, size_t, | |
387 | (char *dest, const wchar_t **srcp, size_t srclen, size_t len, | |
388 | mbstate_t *ps)); | |
389 | # endif | |
390 | _GL_CXXALIASWARN (wcsnrtombs); | |
391 | #elif defined GNULIB_POSIXCHECK | |
392 | # undef wcsnrtombs | |
393 | # if HAVE_RAW_DECL_WCSNRTOMBS | |
394 | _GL_WARN_ON_USE (wcsnrtombs, "wcsnrtombs is unportable - " | |
395 | "use gnulib module wcsnrtombs for portability"); | |
396 | # endif | |
f6ea5628 DJ |
397 | #endif |
398 | ||
399 | ||
400 | /* Return the number of screen columns needed for WC. */ | |
401 | #if @GNULIB_WCWIDTH@ | |
402 | # if @REPLACE_WCWIDTH@ | |
f434ba03 PA |
403 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
404 | # undef wcwidth | |
405 | # define wcwidth rpl_wcwidth | |
406 | # endif | |
407 | _GL_FUNCDECL_RPL (wcwidth, int, (wchar_t)); | |
408 | _GL_CXXALIAS_RPL (wcwidth, int, (wchar_t)); | |
f6ea5628 | 409 | # else |
f434ba03 | 410 | # if !@HAVE_DECL_WCWIDTH@ |
f6ea5628 | 411 | /* wcwidth exists but is not declared. */ |
f434ba03 | 412 | _GL_FUNCDECL_SYS (wcwidth, int, (wchar_t)); |
f6ea5628 | 413 | # endif |
f434ba03 | 414 | _GL_CXXALIAS_SYS (wcwidth, int, (wchar_t)); |
f6ea5628 | 415 | # endif |
f434ba03 | 416 | _GL_CXXALIASWARN (wcwidth); |
f6ea5628 DJ |
417 | #elif defined GNULIB_POSIXCHECK |
418 | # undef wcwidth | |
f434ba03 PA |
419 | # if HAVE_RAW_DECL_WCWIDTH |
420 | _GL_WARN_ON_USE (wcwidth, "wcwidth is unportable - " | |
421 | "use gnulib module wcwidth for portability"); | |
422 | # endif | |
f6ea5628 DJ |
423 | #endif |
424 | ||
425 | ||
f6ea5628 DJ |
426 | #endif /* _GL_WCHAR_H */ |
427 | #endif /* _GL_WCHAR_H */ | |
f434ba03 | 428 | #endif |