1 | /* DO NOT EDIT! GENERATED AUTOMATICALLY! */ |
2 | /* A more-standard <time.h>. |
3 | |
4 | Copyright (C) 2007-2019 Free Software Foundation, Inc. |
5 | |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by |
8 | the Free Software Foundation; either version 3, or (at your option) |
9 | any later version. |
10 | |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | GNU General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, see <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #if __GNUC__ >= 3 |
20 | #pragma GCC system_header |
21 | #endif |
22 | |
23 | |
24 | /* Don't get in the way of glibc when it includes time.h merely to |
25 | declare a few standard symbols, rather than to declare all the |
26 | symbols. (However, skip this for MinGW as it treats __need_time_t |
27 | incompatibly.) Also, Solaris 8 <time.h> eventually includes itself |
28 | recursively; if that is happening, just include the system <time.h> |
29 | without adding our own declarations. */ |
30 | #if (((defined __need_time_t || defined __need_clock_t \ |
31 | || defined __need_timespec) \ |
32 | && !defined __MINGW32__) \ |
33 | || defined _GL_TIME_H) |
34 | |
35 | # include_next <time.h> |
36 | |
37 | #else |
38 | |
39 | # define _GL_TIME_H |
40 | |
41 | # include_next <time.h> |
42 | |
43 | /* NetBSD 5.0 mis-defines NULL. */ |
44 | # include <stddef.h> |
45 | |
46 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
47 | /* C++ compatible function declaration macros. |
48 | Copyright (C) 2010-2019 Free Software Foundation, Inc. |
49 | |
50 | This program is free software: you can redistribute it and/or modify it |
51 | under the terms of the GNU General Public License as published |
52 | by the Free Software Foundation; either version 3 of the License, or |
53 | (at your option) any later version. |
54 | |
55 | This program is distributed in the hope that it will be useful, |
56 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
57 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
58 | General Public License for more details. |
59 | |
60 | You should have received a copy of the GNU General Public License |
61 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
62 | |
63 | #ifndef _GL_CXXDEFS_H |
64 | #define _GL_CXXDEFS_H |
65 | |
66 | /* Begin/end the GNULIB_NAMESPACE namespace. */ |
67 | #if defined __cplusplus && defined GNULIB_NAMESPACE |
68 | # define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE { |
69 | # define _GL_END_NAMESPACE } |
70 | #else |
71 | # define _GL_BEGIN_NAMESPACE |
72 | # define _GL_END_NAMESPACE |
73 | #endif |
74 | |
75 | /* The three most frequent use cases of these macros are: |
76 | |
77 | * For providing a substitute for a function that is missing on some |
78 | platforms, but is declared and works fine on the platforms on which |
79 | it exists: |
80 | |
81 | #if @GNULIB_FOO@ |
82 | # if !@HAVE_FOO@ |
83 | _GL_FUNCDECL_SYS (foo, ...); |
84 | # endif |
85 | _GL_CXXALIAS_SYS (foo, ...); |
86 | _GL_CXXALIASWARN (foo); |
87 | #elif defined GNULIB_POSIXCHECK |
88 | ... |
89 | #endif |
90 | |
91 | * For providing a replacement for a function that exists on all platforms, |
92 | but is broken/insufficient and needs to be replaced on some platforms: |
93 | |
94 | #if @GNULIB_FOO@ |
95 | # if @REPLACE_FOO@ |
96 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
97 | # undef foo |
98 | # define foo rpl_foo |
99 | # endif |
100 | _GL_FUNCDECL_RPL (foo, ...); |
101 | _GL_CXXALIAS_RPL (foo, ...); |
102 | # else |
103 | _GL_CXXALIAS_SYS (foo, ...); |
104 | # endif |
105 | _GL_CXXALIASWARN (foo); |
106 | #elif defined GNULIB_POSIXCHECK |
107 | ... |
108 | #endif |
109 | |
110 | * For providing a replacement for a function that exists on some platforms |
111 | but is broken/insufficient and needs to be replaced on some of them and |
112 | is additionally either missing or undeclared on some other platforms: |
113 | |
114 | #if @GNULIB_FOO@ |
115 | # if @REPLACE_FOO@ |
116 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
117 | # undef foo |
118 | # define foo rpl_foo |
119 | # endif |
120 | _GL_FUNCDECL_RPL (foo, ...); |
121 | _GL_CXXALIAS_RPL (foo, ...); |
122 | # else |
123 | # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@ |
124 | _GL_FUNCDECL_SYS (foo, ...); |
125 | # endif |
126 | _GL_CXXALIAS_SYS (foo, ...); |
127 | # endif |
128 | _GL_CXXALIASWARN (foo); |
129 | #elif defined GNULIB_POSIXCHECK |
130 | ... |
131 | #endif |
132 | */ |
133 | |
134 | /* _GL_EXTERN_C declaration; |
135 | performs the declaration with C linkage. */ |
136 | #if defined __cplusplus |
137 | # define _GL_EXTERN_C extern "C" |
138 | #else |
139 | # define _GL_EXTERN_C extern |
140 | #endif |
141 | |
142 | /* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes); |
143 | declares a replacement function, named rpl_func, with the given prototype, |
144 | consisting of return type, parameters, and attributes. |
145 | Example: |
146 | _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) |
147 | _GL_ARG_NONNULL ((1))); |
148 | */ |
149 | #define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \ |
150 | _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes) |
151 | #define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \ |
152 | _GL_EXTERN_C rettype rpl_func parameters_and_attributes |
153 | |
154 | /* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes); |
155 | declares the system function, named func, with the given prototype, |
156 | consisting of return type, parameters, and attributes. |
157 | Example: |
158 | _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...) |
159 | _GL_ARG_NONNULL ((1))); |
160 | */ |
161 | #define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \ |
162 | _GL_EXTERN_C rettype func parameters_and_attributes |
163 | |
164 | /* _GL_CXXALIAS_RPL (func, rettype, parameters); |
165 | declares a C++ alias called GNULIB_NAMESPACE::func |
166 | that redirects to rpl_func, if GNULIB_NAMESPACE is defined. |
167 | Example: |
168 | _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); |
169 | |
170 | Wrapping rpl_func in an object with an inline conversion operator |
171 | avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is |
172 | actually used in the program. */ |
173 | #define _GL_CXXALIAS_RPL(func,rettype,parameters) \ |
174 | _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters) |
175 | #if defined __cplusplus && defined GNULIB_NAMESPACE |
176 | # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ |
177 | namespace GNULIB_NAMESPACE \ |
178 | { \ |
179 | static const struct _gl_ ## func ## _wrapper \ |
180 | { \ |
181 | typedef rettype (*type) parameters; \ |
182 | \ |
183 | inline operator type () const \ |
184 | { \ |
185 | return ::rpl_func; \ |
186 | } \ |
187 | } func = {}; \ |
188 | } \ |
189 | _GL_EXTERN_C int _gl_cxxalias_dummy |
190 | #else |
191 | # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ |
192 | _GL_EXTERN_C int _gl_cxxalias_dummy |
193 | #endif |
194 | |
195 | /* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters); |
196 | is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters); |
197 | except that the C function rpl_func may have a slightly different |
198 | declaration. A cast is used to silence the "invalid conversion" error |
199 | that would otherwise occur. */ |
200 | #if defined __cplusplus && defined GNULIB_NAMESPACE |
201 | # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ |
202 | namespace GNULIB_NAMESPACE \ |
203 | { \ |
204 | static const struct _gl_ ## func ## _wrapper \ |
205 | { \ |
206 | typedef rettype (*type) parameters; \ |
207 | \ |
208 | inline operator type () const \ |
209 | { \ |
210 | return reinterpret_cast<type>(::rpl_func); \ |
211 | } \ |
212 | } func = {}; \ |
213 | } \ |
214 | _GL_EXTERN_C int _gl_cxxalias_dummy |
215 | #else |
216 | # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ |
217 | _GL_EXTERN_C int _gl_cxxalias_dummy |
218 | #endif |
219 | |
220 | /* _GL_CXXALIAS_SYS (func, rettype, parameters); |
221 | declares a C++ alias called GNULIB_NAMESPACE::func |
222 | that redirects to the system provided function func, if GNULIB_NAMESPACE |
223 | is defined. |
224 | Example: |
225 | _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); |
226 | |
227 | Wrapping func in an object with an inline conversion operator |
228 | avoids a reference to func unless GNULIB_NAMESPACE::func is |
229 | actually used in the program. */ |
230 | #if defined __cplusplus && defined GNULIB_NAMESPACE |
231 | # define _GL_CXXALIAS_SYS(func,rettype,parameters) \ |
232 | namespace GNULIB_NAMESPACE \ |
233 | { \ |
234 | static const struct _gl_ ## func ## _wrapper \ |
235 | { \ |
236 | typedef rettype (*type) parameters; \ |
237 | \ |
238 | inline operator type () const \ |
239 | { \ |
240 | return ::func; \ |
241 | } \ |
242 | } func = {}; \ |
243 | } \ |
244 | _GL_EXTERN_C int _gl_cxxalias_dummy |
245 | #else |
246 | # define _GL_CXXALIAS_SYS(func,rettype,parameters) \ |
247 | _GL_EXTERN_C int _gl_cxxalias_dummy |
248 | #endif |
249 | |
250 | /* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters); |
251 | is like _GL_CXXALIAS_SYS (func, rettype, parameters); |
252 | except that the C function func may have a slightly different declaration. |
253 | A cast is used to silence the "invalid conversion" error that would |
254 | otherwise occur. */ |
255 | #if defined __cplusplus && defined GNULIB_NAMESPACE |
256 | # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ |
257 | namespace GNULIB_NAMESPACE \ |
258 | { \ |
259 | static const struct _gl_ ## func ## _wrapper \ |
260 | { \ |
261 | typedef rettype (*type) parameters; \ |
262 | \ |
263 | inline operator type () const \ |
264 | { \ |
265 | return reinterpret_cast<type>(::func); \ |
266 | } \ |
267 | } func = {}; \ |
268 | } \ |
269 | _GL_EXTERN_C int _gl_cxxalias_dummy |
270 | #else |
271 | # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ |
272 | _GL_EXTERN_C int _gl_cxxalias_dummy |
273 | #endif |
274 | |
275 | /* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2); |
276 | is like _GL_CXXALIAS_SYS (func, rettype, parameters); |
277 | except that the C function is picked among a set of overloaded functions, |
278 | namely the one with rettype2 and parameters2. Two consecutive casts |
279 | are used to silence the "cannot find a match" and "invalid conversion" |
280 | errors that would otherwise occur. */ |
281 | #if defined __cplusplus && defined GNULIB_NAMESPACE |
282 | /* The outer cast must be a reinterpret_cast. |
283 | The inner cast: When the function is defined as a set of overloaded |
284 | functions, it works as a static_cast<>, choosing the designated variant. |
285 | When the function is defined as a single variant, it works as a |
286 | reinterpret_cast<>. The parenthesized cast syntax works both ways. */ |
287 | # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ |
288 | namespace GNULIB_NAMESPACE \ |
289 | { \ |
290 | static const struct _gl_ ## func ## _wrapper \ |
291 | { \ |
292 | typedef rettype (*type) parameters; \ |
293 | \ |
294 | inline operator type () const \ |
295 | { \ |
296 | return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \ |
297 | } \ |
298 | } func = {}; \ |
299 | } \ |
300 | _GL_EXTERN_C int _gl_cxxalias_dummy |
301 | #else |
302 | # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ |
303 | _GL_EXTERN_C int _gl_cxxalias_dummy |
304 | #endif |
305 | |
306 | /* _GL_CXXALIASWARN (func); |
307 | causes a warning to be emitted when ::func is used but not when |
308 | GNULIB_NAMESPACE::func is used. func must be defined without overloaded |
309 | variants. */ |
310 | #if defined __cplusplus && defined GNULIB_NAMESPACE |
311 | # define _GL_CXXALIASWARN(func) \ |
312 | _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE) |
313 | # define _GL_CXXALIASWARN_1(func,namespace) \ |
314 | _GL_CXXALIASWARN_2 (func, namespace) |
315 | /* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, |
316 | we enable the warning only when not optimizing. */ |
317 | # if !__OPTIMIZE__ |
318 | # define _GL_CXXALIASWARN_2(func,namespace) \ |
319 | _GL_WARN_ON_USE (func, \ |
320 | "The symbol ::" #func " refers to the system function. " \ |
321 | "Use " #namespace "::" #func " instead.") |
322 | # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING |
323 | # define _GL_CXXALIASWARN_2(func,namespace) \ |
324 | extern __typeof__ (func) func |
325 | # else |
326 | # define _GL_CXXALIASWARN_2(func,namespace) \ |
327 | _GL_EXTERN_C int _gl_cxxalias_dummy |
328 | # endif |
329 | #else |
330 | # define _GL_CXXALIASWARN(func) \ |
331 | _GL_EXTERN_C int _gl_cxxalias_dummy |
332 | #endif |
333 | |
334 | /* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes); |
335 | causes a warning to be emitted when the given overloaded variant of ::func |
336 | is used but not when GNULIB_NAMESPACE::func is used. */ |
337 | #if defined __cplusplus && defined GNULIB_NAMESPACE |
338 | # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ |
339 | _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \ |
340 | GNULIB_NAMESPACE) |
341 | # define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \ |
342 | _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace) |
343 | /* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, |
344 | we enable the warning only when not optimizing. */ |
345 | # if !__OPTIMIZE__ |
346 | # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ |
347 | _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \ |
348 | "The symbol ::" #func " refers to the system function. " \ |
349 | "Use " #namespace "::" #func " instead.") |
350 | # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING |
351 | # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ |
352 | extern __typeof__ (func) func |
353 | # else |
354 | # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ |
355 | _GL_EXTERN_C int _gl_cxxalias_dummy |
356 | # endif |
357 | #else |
358 | # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ |
359 | _GL_EXTERN_C int _gl_cxxalias_dummy |
360 | #endif |
361 | |
362 | #endif /* _GL_CXXDEFS_H */ |
363 | |
364 | /* The definition of _GL_ARG_NONNULL is copied here. */ |
365 | /* A C macro for declaring that specific arguments must not be NULL. |
366 | Copyright (C) 2009-2019 Free Software Foundation, Inc. |
367 | |
368 | This program is free software: you can redistribute it and/or modify it |
369 | under the terms of the GNU General Public License as published |
370 | by the Free Software Foundation; either version 3 of the License, or |
371 | (at your option) any later version. |
372 | |
373 | This program is distributed in the hope that it will be useful, |
374 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
375 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
376 | General Public License for more details. |
377 | |
378 | You should have received a copy of the GNU General Public License |
379 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
380 | |
381 | /* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools |
382 | that the values passed as arguments n, ..., m must be non-NULL pointers. |
383 | n = 1 stands for the first argument, n = 2 for the second argument etc. */ |
384 | #ifndef _GL_ARG_NONNULL |
385 | # if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3 |
386 | # define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params)) |
387 | # else |
388 | # define _GL_ARG_NONNULL(params) |
389 | # endif |
390 | #endif |
391 | |
392 | /* The definition of _GL_WARN_ON_USE is copied here. */ |
393 | /* A C macro for emitting warnings if a function is used. |
394 | Copyright (C) 2010-2019 Free Software Foundation, Inc. |
395 | |
396 | This program is free software: you can redistribute it and/or modify it |
397 | under the terms of the GNU General Public License as published |
398 | by the Free Software Foundation; either version 3 of the License, or |
399 | (at your option) any later version. |
400 | |
401 | This program is distributed in the hope that it will be useful, |
402 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
403 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
404 | General Public License for more details. |
405 | |
406 | You should have received a copy of the GNU General Public License |
407 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
408 | |
409 | /* _GL_WARN_ON_USE (function, "literal string") issues a declaration |
410 | for FUNCTION which will then trigger a compiler warning containing |
411 | the text of "literal string" anywhere that function is called, if |
412 | supported by the compiler. If the compiler does not support this |
413 | feature, the macro expands to an unused extern declaration. |
414 | |
415 | _GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the |
416 | attribute used in _GL_WARN_ON_USE. If the compiler does not support |
417 | this feature, it expands to empty. |
418 | |
419 | These macros are useful for marking a function as a potential |
420 | portability trap, with the intent that "literal string" include |
421 | instructions on the replacement function that should be used |
422 | instead. |
423 | _GL_WARN_ON_USE is for functions with 'extern' linkage. |
424 | _GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline' |
425 | linkage. |
426 | |
427 | However, one of the reasons that a function is a portability trap is |
428 | if it has the wrong signature. Declaring FUNCTION with a different |
429 | signature in C is a compilation error, so this macro must use the |
430 | same type as any existing declaration so that programs that avoid |
431 | the problematic FUNCTION do not fail to compile merely because they |
432 | included a header that poisoned the function. But this implies that |
433 | _GL_WARN_ON_USE is only safe to use if FUNCTION is known to already |
434 | have a declaration. Use of this macro implies that there must not |
435 | be any other macro hiding the declaration of FUNCTION; but |
436 | undefining FUNCTION first is part of the poisoning process anyway |
437 | (although for symbols that are provided only via a macro, the result |
438 | is a compilation error rather than a warning containing |
439 | "literal string"). Also note that in C++, it is only safe to use if |
440 | FUNCTION has no overloads. |
441 | |
442 | For an example, it is possible to poison 'getline' by: |
443 | - adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]], |
444 | [getline]) in configure.ac, which potentially defines |
445 | HAVE_RAW_DECL_GETLINE |
446 | - adding this code to a header that wraps the system <stdio.h>: |
447 | #undef getline |
448 | #if HAVE_RAW_DECL_GETLINE |
449 | _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but" |
450 | "not universally present; use the gnulib module getline"); |
451 | #endif |
452 | |
453 | It is not possible to directly poison global variables. But it is |
454 | possible to write a wrapper accessor function, and poison that |
455 | (less common usage, like &environ, will cause a compilation error |
456 | rather than issue the nice warning, but the end result of informing |
457 | the developer about their portability problem is still achieved): |
458 | #if HAVE_RAW_DECL_ENVIRON |
459 | static char *** |
460 | rpl_environ (void) { return &environ; } |
461 | _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared"); |
462 | # undef environ |
463 | # define environ (*rpl_environ ()) |
464 | #endif |
465 | or better (avoiding contradictory use of 'static' and 'extern'): |
466 | #if HAVE_RAW_DECL_ENVIRON |
467 | static char *** |
468 | _GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared") |
469 | rpl_environ (void) { return &environ; } |
470 | # undef environ |
471 | # define environ (*rpl_environ ()) |
472 | #endif |
473 | */ |
474 | #ifndef _GL_WARN_ON_USE |
475 | |
476 | # if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) |
477 | /* A compiler attribute is available in gcc versions 4.3.0 and later. */ |
478 | # define _GL_WARN_ON_USE(function, message) \ |
479 | extern __typeof__ (function) function __attribute__ ((__warning__ (message))) |
480 | # define _GL_WARN_ON_USE_ATTRIBUTE(message) \ |
481 | __attribute__ ((__warning__ (message))) |
482 | # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING |
483 | /* Verify the existence of the function. */ |
484 | # define _GL_WARN_ON_USE(function, message) \ |
485 | extern __typeof__ (function) function |
486 | # define _GL_WARN_ON_USE_ATTRIBUTE(message) |
487 | # else /* Unsupported. */ |
488 | # define _GL_WARN_ON_USE(function, message) \ |
489 | _GL_WARN_EXTERN_C int _gl_warn_on_use |
490 | # define _GL_WARN_ON_USE_ATTRIBUTE(message) |
491 | # endif |
492 | #endif |
493 | |
494 | /* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string") |
495 | is like _GL_WARN_ON_USE (function, "string"), except that the function is |
496 | declared with the given prototype, consisting of return type, parameters, |
497 | and attributes. |
498 | This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does |
499 | not work in this case. */ |
500 | #ifndef _GL_WARN_ON_USE_CXX |
501 | # if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) |
502 | # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ |
503 | extern rettype function parameters_and_attributes \ |
504 | __attribute__ ((__warning__ (msg))) |
505 | # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING |
506 | /* Verify the existence of the function. */ |
507 | # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ |
508 | extern rettype function parameters_and_attributes |
509 | # else /* Unsupported. */ |
510 | # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ |
511 | _GL_WARN_EXTERN_C int _gl_warn_on_use |
512 | # endif |
513 | #endif |
514 | |
515 | /* _GL_WARN_EXTERN_C declaration; |
516 | performs the declaration with C linkage. */ |
517 | #ifndef _GL_WARN_EXTERN_C |
518 | # if defined __cplusplus |
519 | # define _GL_WARN_EXTERN_C extern "C" |
520 | # else |
521 | # define _GL_WARN_EXTERN_C extern |
522 | # endif |
523 | #endif |
524 | |
525 | /* Some systems don't define struct timespec (e.g., AIX 4.1). |
526 | Or they define it with the wrong member names or define it in <sys/time.h> |
527 | (e.g., FreeBSD circa 1997). Stock Mingw prior to 3.0 does not define it, |
528 | but the pthreads-win32 library defines it in <pthread.h>. */ |
529 | # if ! 1 |
530 | # if 0 |
531 | # include <sys/time.h> |
532 | # elif 0 |
533 | # include <pthread.h> |
534 | # elif 0 |
535 | # include <unistd.h> |
536 | # else |
537 | |
538 | # ifdef __cplusplus |
539 | extern "C" { |
540 | # endif |
541 | |
542 | # if !GNULIB_defined_struct_timespec |
543 | # undef timespec |
544 | # define timespec rpl_timespec |
545 | struct timespec |
546 | { |
547 | time_t tv_sec; |
548 | long int tv_nsec; |
549 | }; |
550 | # define GNULIB_defined_struct_timespec 1 |
551 | # endif |
552 | |
553 | # ifdef __cplusplus |
554 | } |
555 | # endif |
556 | |
557 | # endif |
558 | # endif |
559 | |
560 | # if !GNULIB_defined_struct_time_t_must_be_integral |
561 | /* Per http://austingroupbugs.net/view.php?id=327, POSIX requires |
562 | time_t to be an integer type, even though C99 permits floating |
563 | point. We don't know of any implementation that uses floating |
564 | point, and it is much easier to write code that doesn't have to |
565 | worry about that corner case, so we force the issue. */ |
566 | struct __time_t_must_be_integral { |
567 | unsigned int __floating_time_t_unsupported : (time_t) 1; |
568 | }; |
569 | # define GNULIB_defined_struct_time_t_must_be_integral 1 |
570 | # endif |
571 | |
572 | /* Sleep for at least RQTP seconds unless interrupted, If interrupted, |
573 | return -1 and store the remaining time into RMTP. See |
574 | <http://www.opengroup.org/susv3xsh/nanosleep.html>. */ |
575 | # if 0 |
576 | # if GNULIB_PORTCHECK |
577 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
578 | # define nanosleep rpl_nanosleep |
579 | # endif |
580 | _GL_FUNCDECL_RPL (nanosleep, int, |
581 | (struct timespec const *__rqtp, struct timespec *__rmtp) |
582 | _GL_ARG_NONNULL ((1))); |
583 | _GL_CXXALIAS_RPL (nanosleep, int, |
584 | (struct timespec const *__rqtp, struct timespec *__rmtp)); |
585 | # else |
586 | # if ! 1 |
587 | _GL_FUNCDECL_SYS (nanosleep, int, |
588 | (struct timespec const *__rqtp, struct timespec *__rmtp) |
589 | _GL_ARG_NONNULL ((1))); |
590 | # endif |
591 | _GL_CXXALIAS_SYS (nanosleep, int, |
592 | (struct timespec const *__rqtp, struct timespec *__rmtp)); |
593 | # endif |
594 | _GL_CXXALIASWARN (nanosleep); |
595 | # endif |
596 | |
597 | /* Initialize time conversion information. */ |
598 | # if 0 |
599 | # if GNULIB_PORTCHECK |
600 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
601 | # undef tzset |
602 | # define tzset rpl_tzset |
603 | # endif |
604 | _GL_FUNCDECL_RPL (tzset, void, (void)); |
605 | _GL_CXXALIAS_RPL (tzset, void, (void)); |
606 | # else |
607 | # if ! 1 |
608 | _GL_FUNCDECL_SYS (tzset, void, (void)); |
609 | # endif |
610 | _GL_CXXALIAS_SYS (tzset, void, (void)); |
611 | # endif |
612 | _GL_CXXALIASWARN (tzset); |
613 | # endif |
614 | |
615 | /* Return the 'time_t' representation of TP and normalize TP. */ |
616 | # if 0 |
617 | # if GNULIB_PORTCHECK |
618 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
619 | # define mktime rpl_mktime |
620 | # endif |
621 | _GL_FUNCDECL_RPL (mktime, time_t, (struct tm *__tp) _GL_ARG_NONNULL ((1))); |
622 | _GL_CXXALIAS_RPL (mktime, time_t, (struct tm *__tp)); |
623 | # else |
624 | _GL_CXXALIAS_SYS (mktime, time_t, (struct tm *__tp)); |
625 | # endif |
626 | _GL_CXXALIASWARN (mktime); |
627 | # endif |
628 | |
629 | /* Convert TIMER to RESULT, assuming local time and UTC respectively. See |
630 | <http://www.opengroup.org/susv3xsh/localtime_r.html> and |
631 | <http://www.opengroup.org/susv3xsh/gmtime_r.html>. */ |
632 | # if 0 |
633 | # if GNULIB_PORTCHECK |
634 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
635 | # undef localtime_r |
636 | # define localtime_r rpl_localtime_r |
637 | # endif |
638 | _GL_FUNCDECL_RPL (localtime_r, struct tm *, (time_t const *restrict __timer, |
639 | struct tm *restrict __result) |
640 | _GL_ARG_NONNULL ((1, 2))); |
641 | _GL_CXXALIAS_RPL (localtime_r, struct tm *, (time_t const *restrict __timer, |
642 | struct tm *restrict __result)); |
643 | # else |
644 | # if ! 1 |
645 | _GL_FUNCDECL_SYS (localtime_r, struct tm *, (time_t const *restrict __timer, |
646 | struct tm *restrict __result) |
647 | _GL_ARG_NONNULL ((1, 2))); |
648 | # endif |
649 | _GL_CXXALIAS_SYS (localtime_r, struct tm *, (time_t const *restrict __timer, |
650 | struct tm *restrict __result)); |
651 | # endif |
652 | # if 1 |
653 | _GL_CXXALIASWARN (localtime_r); |
654 | # endif |
655 | # if GNULIB_PORTCHECK |
656 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
657 | # undef gmtime_r |
658 | # define gmtime_r rpl_gmtime_r |
659 | # endif |
660 | _GL_FUNCDECL_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer, |
661 | struct tm *restrict __result) |
662 | _GL_ARG_NONNULL ((1, 2))); |
663 | _GL_CXXALIAS_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer, |
664 | struct tm *restrict __result)); |
665 | # else |
666 | # if ! 1 |
667 | _GL_FUNCDECL_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer, |
668 | struct tm *restrict __result) |
669 | _GL_ARG_NONNULL ((1, 2))); |
670 | # endif |
671 | _GL_CXXALIAS_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer, |
672 | struct tm *restrict __result)); |
673 | # endif |
674 | # if 1 |
675 | _GL_CXXALIASWARN (gmtime_r); |
676 | # endif |
677 | # endif |
678 | |
679 | /* Convert TIMER to RESULT, assuming local time and UTC respectively. See |
680 | <http://www.opengroup.org/susv3xsh/localtime.html> and |
681 | <http://www.opengroup.org/susv3xsh/gmtime.html>. */ |
682 | # if 0 || 0 |
683 | # if 0 |
684 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
685 | # undef localtime |
686 | # define localtime rpl_localtime |
687 | # endif |
688 | _GL_FUNCDECL_RPL (localtime, struct tm *, (time_t const *__timer) |
689 | _GL_ARG_NONNULL ((1))); |
690 | _GL_CXXALIAS_RPL (localtime, struct tm *, (time_t const *__timer)); |
691 | # else |
692 | _GL_CXXALIAS_SYS (localtime, struct tm *, (time_t const *__timer)); |
693 | # endif |
694 | _GL_CXXALIASWARN (localtime); |
695 | # endif |
696 | |
697 | # if 0 || 0 |
698 | # if 0 |
699 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
700 | # undef gmtime |
701 | # define gmtime rpl_gmtime |
702 | # endif |
703 | _GL_FUNCDECL_RPL (gmtime, struct tm *, (time_t const *__timer) |
704 | _GL_ARG_NONNULL ((1))); |
705 | _GL_CXXALIAS_RPL (gmtime, struct tm *, (time_t const *__timer)); |
706 | # else |
707 | _GL_CXXALIAS_SYS (gmtime, struct tm *, (time_t const *__timer)); |
708 | # endif |
709 | _GL_CXXALIASWARN (gmtime); |
710 | # endif |
711 | |
712 | /* Parse BUF as a timestamp, assuming FORMAT specifies its layout, and store |
713 | the resulting broken-down time into TM. See |
714 | <http://www.opengroup.org/susv3xsh/strptime.html>. */ |
715 | # if 0 |
716 | # if ! 1 |
717 | _GL_FUNCDECL_SYS (strptime, char *, (char const *restrict __buf, |
718 | char const *restrict __format, |
719 | struct tm *restrict __tm) |
720 | _GL_ARG_NONNULL ((1, 2, 3))); |
721 | # endif |
722 | _GL_CXXALIAS_SYS (strptime, char *, (char const *restrict __buf, |
723 | char const *restrict __format, |
724 | struct tm *restrict __tm)); |
725 | _GL_CXXALIASWARN (strptime); |
726 | # endif |
727 | |
728 | /* Convert *TP to a date and time string. See |
729 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ctime.html>. */ |
730 | # if 0 |
731 | # if GNULIB_PORTCHECK |
732 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
733 | # define ctime rpl_ctime |
734 | # endif |
735 | _GL_FUNCDECL_RPL (ctime, char *, (time_t const *__tp) |
736 | _GL_ARG_NONNULL ((1))); |
737 | _GL_CXXALIAS_RPL (ctime, char *, (time_t const *__tp)); |
738 | # else |
739 | _GL_CXXALIAS_SYS (ctime, char *, (time_t const *__tp)); |
740 | # endif |
741 | _GL_CXXALIASWARN (ctime); |
742 | # endif |
743 | |
744 | /* Convert *TP to a date and time string. See |
745 | <http://pubs.opengroup.org/onlinepubs/9699919799/functions/strftime.html>. */ |
746 | # if 0 |
747 | # if GNULIB_PORTCHECK |
748 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
749 | # define strftime rpl_strftime |
750 | # endif |
751 | _GL_FUNCDECL_RPL (strftime, size_t, (char *__buf, size_t __bufsize, |
752 | const char *__fmt, const struct tm *__tp) |
753 | _GL_ARG_NONNULL ((1, 3, 4))); |
754 | _GL_CXXALIAS_RPL (strftime, size_t, (char *__buf, size_t __bufsize, |
755 | const char *__fmt, const struct tm *__tp)); |
756 | # else |
757 | _GL_CXXALIAS_SYS (strftime, size_t, (char *__buf, size_t __bufsize, |
758 | const char *__fmt, const struct tm *__tp)); |
759 | # endif |
760 | _GL_CXXALIASWARN (strftime); |
761 | # endif |
762 | |
763 | # if defined _GNU_SOURCE && 0 && ! 0 |
764 | typedef struct tm_zone *timezone_t; |
765 | _GL_FUNCDECL_SYS (tzalloc, timezone_t, (char const *__name)); |
766 | _GL_CXXALIAS_SYS (tzalloc, timezone_t, (char const *__name)); |
767 | _GL_FUNCDECL_SYS (tzfree, void, (timezone_t __tz)); |
768 | _GL_CXXALIAS_SYS (tzfree, void, (timezone_t __tz)); |
769 | _GL_FUNCDECL_SYS (localtime_rz, struct tm *, |
770 | (timezone_t __tz, time_t const *restrict __timer, |
771 | struct tm *restrict __result) _GL_ARG_NONNULL ((2, 3))); |
772 | _GL_CXXALIAS_SYS (localtime_rz, struct tm *, |
773 | (timezone_t __tz, time_t const *restrict __timer, |
774 | struct tm *restrict __result)); |
775 | _GL_FUNCDECL_SYS (mktime_z, time_t, |
776 | (timezone_t __tz, struct tm *restrict __result) |
777 | _GL_ARG_NONNULL ((2))); |
778 | _GL_CXXALIAS_SYS (mktime_z, time_t, |
779 | (timezone_t __tz, struct tm *restrict __result)); |
780 | # endif |
781 | |
782 | /* Convert TM to a time_t value, assuming UTC. */ |
783 | # if 0 |
784 | # if GNULIB_PORTCHECK |
785 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
786 | # undef timegm |
787 | # define timegm rpl_timegm |
788 | # endif |
789 | _GL_FUNCDECL_RPL (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1))); |
790 | _GL_CXXALIAS_RPL (timegm, time_t, (struct tm *__tm)); |
791 | # else |
792 | # if ! 1 |
793 | _GL_FUNCDECL_SYS (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1))); |
794 | # endif |
795 | _GL_CXXALIAS_SYS (timegm, time_t, (struct tm *__tm)); |
796 | # endif |
797 | _GL_CXXALIASWARN (timegm); |
798 | # endif |
799 | |
800 | /* Encourage applications to avoid unsafe functions that can overrun |
801 | buffers when given outlandish struct tm values. Portable |
802 | applications should use strftime (or even sprintf) instead. */ |
803 | # if defined GNULIB_POSIXCHECK |
804 | # undef asctime |
805 | _GL_WARN_ON_USE (asctime, "asctime can overrun buffers in some cases - " |
806 | "better use strftime (or even sprintf) instead" ); |
807 | # endif |
808 | # if defined GNULIB_POSIXCHECK |
809 | # undef asctime_r |
810 | _GL_WARN_ON_USE (asctime, "asctime_r can overrun buffers in some cases - " |
811 | "better use strftime (or even sprintf) instead" ); |
812 | # endif |
813 | # if defined GNULIB_POSIXCHECK |
814 | # undef ctime |
815 | _GL_WARN_ON_USE (asctime, "ctime can overrun buffers in some cases - " |
816 | "better use strftime (or even sprintf) instead" ); |
817 | # endif |
818 | # if defined GNULIB_POSIXCHECK |
819 | # undef ctime_r |
820 | _GL_WARN_ON_USE (asctime, "ctime_r can overrun buffers in some cases - " |
821 | "better use strftime (or even sprintf) instead" ); |
822 | # endif |
823 | |
824 | #endif |
825 | |