1 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */ 2 /* A more-standard <time.h>. 3 4 Copyright (C) 2007-2012 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 <http://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. Also, Solaris 8 <time.h> eventually includes itself 27 recursively; if that is happening, just include the system <time.h> 28 without adding our own declarations. */ 29 #if (defined __need_time_t || defined __need_clock_t \ 30 || defined __need_timespec \ 31 || defined _GL_TIME_H) 32 33 # include_next <time.h> 34 35 #else 36 37 # define _GL_TIME_H 38 39 # include_next <time.h> 40 41 /* NetBSD 5.0 mis-defines NULL. */ 42 # include <stddef.h> 43 44 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ 45 #ifndef _GL_CXXDEFS_H 46 #define _GL_CXXDEFS_H 47 48 /* The three most frequent use cases of these macros are: 49 50 * For providing a substitute for a function that is missing on some 51 platforms, but is declared and works fine on the platforms on which 52 it exists: 53 54 #if @GNULIB_FOO@ 55 # if !@HAVE_FOO@ 56 _GL_FUNCDECL_SYS (foo, ...); 57 # endif 58 _GL_CXXALIAS_SYS (foo, ...); 59 _GL_CXXALIASWARN (foo); 60 #elif defined GNULIB_POSIXCHECK 61 ... 62 #endif 63 64 * For providing a replacement for a function that exists on all platforms, 65 but is broken/insufficient and needs to be replaced on some platforms: 66 67 #if @GNULIB_FOO@ 68 # if @REPLACE_FOO@ 69 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 70 # undef foo 71 # define foo rpl_foo 72 # endif 73 _GL_FUNCDECL_RPL (foo, ...); 74 _GL_CXXALIAS_RPL (foo, ...); 75 # else 76 _GL_CXXALIAS_SYS (foo, ...); 77 # endif 78 _GL_CXXALIASWARN (foo); 79 #elif defined GNULIB_POSIXCHECK 80 ... 81 #endif 82 83 * For providing a replacement for a function that exists on some platforms 84 but is broken/insufficient and needs to be replaced on some of them and 85 is additionally either missing or undeclared on some other platforms: 86 87 #if @GNULIB_FOO@ 88 # if @REPLACE_FOO@ 89 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 90 # undef foo 91 # define foo rpl_foo 92 # endif 93 _GL_FUNCDECL_RPL (foo, ...); 94 _GL_CXXALIAS_RPL (foo, ...); 95 # else 96 # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@ 97 _GL_FUNCDECL_SYS (foo, ...); 98 # endif 99 _GL_CXXALIAS_SYS (foo, ...); 100 # endif 101 _GL_CXXALIASWARN (foo); 102 #elif defined GNULIB_POSIXCHECK 103 ... 104 #endif 105 */ 106 107 /* _GL_EXTERN_C declaration; 108 performs the declaration with C linkage. */ 109 #if defined __cplusplus 110 # define _GL_EXTERN_C extern "C" 111 #else 112 # define _GL_EXTERN_C extern 113 #endif 114 115 /* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes); 116 declares a replacement function, named rpl_func, with the given prototype, 117 consisting of return type, parameters, and attributes. 118 Example: 119 _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) 120 _GL_ARG_NONNULL ((1))); 121 */ 122 #define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \ 123 _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes) 124 #define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \ 125 _GL_EXTERN_C rettype rpl_func parameters_and_attributes 126 127 /* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes); 128 declares the system function, named func, with the given prototype, 129 consisting of return type, parameters, and attributes. 130 Example: 131 _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...) 132 _GL_ARG_NONNULL ((1))); 133 */ 134 #define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \ 135 _GL_EXTERN_C rettype func parameters_and_attributes 136 137 /* _GL_CXXALIAS_RPL (func, rettype, parameters); 138 declares a C++ alias called GNULIB_NAMESPACE::func 139 that redirects to rpl_func, if GNULIB_NAMESPACE is defined. 140 Example: 141 _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); 142 */ 143 #define _GL_CXXALIAS_RPL(func,rettype,parameters) \ 144 _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters) 145 #if defined __cplusplus && defined GNULIB_NAMESPACE 146 # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ 147 namespace GNULIB_NAMESPACE \ 148 { \ 149 rettype (*const func) parameters = ::rpl_func; \ 150 } \ 151 _GL_EXTERN_C int _gl_cxxalias_dummy 152 #else 153 # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ 154 _GL_EXTERN_C int _gl_cxxalias_dummy 155 #endif 156 157 /* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters); 158 is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters); 159 except that the C function rpl_func may have a slightly different 160 declaration. A cast is used to silence the "invalid conversion" error 161 that would otherwise occur. */ 162 #if defined __cplusplus && defined GNULIB_NAMESPACE 163 # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ 164 namespace GNULIB_NAMESPACE \ 165 { \ 166 rettype (*const func) parameters = \ 167 reinterpret_cast<rettype(*)parameters>(::rpl_func); \ 168 } \ 169 _GL_EXTERN_C int _gl_cxxalias_dummy 170 #else 171 # define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ 172 _GL_EXTERN_C int _gl_cxxalias_dummy 173 #endif 174 175 /* _GL_CXXALIAS_SYS (func, rettype, parameters); 176 declares a C++ alias called GNULIB_NAMESPACE::func 177 that redirects to the system provided function func, if GNULIB_NAMESPACE 178 is defined. 179 Example: 180 _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); 181 */ 182 #if defined __cplusplus && defined GNULIB_NAMESPACE 183 /* If we were to write 184 rettype (*const func) parameters = ::func; 185 like above in _GL_CXXALIAS_RPL_1, the compiler could optimize calls 186 better (remove an indirection through a 'static' pointer variable), 187 but then the _GL_CXXALIASWARN macro below would cause a warning not only 188 for uses of ::func but also for uses of GNULIB_NAMESPACE::func. */ 189 # define _GL_CXXALIAS_SYS(func,rettype,parameters) \ 190 namespace GNULIB_NAMESPACE \ 191 { \ 192 static rettype (*func) parameters = ::func; \ 193 } \ 194 _GL_EXTERN_C int _gl_cxxalias_dummy 195 #else 196 # define _GL_CXXALIAS_SYS(func,rettype,parameters) \ 197 _GL_EXTERN_C int _gl_cxxalias_dummy 198 #endif 199 200 /* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters); 201 is like _GL_CXXALIAS_SYS (func, rettype, parameters); 202 except that the C function func may have a slightly different declaration. 203 A cast is used to silence the "invalid conversion" error that would 204 otherwise occur. */ 205 #if defined __cplusplus && defined GNULIB_NAMESPACE 206 # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ 207 namespace GNULIB_NAMESPACE \ 208 { \ 209 static rettype (*func) parameters = \ 210 reinterpret_cast<rettype(*)parameters>(::func); \ 211 } \ 212 _GL_EXTERN_C int _gl_cxxalias_dummy 213 #else 214 # define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ 215 _GL_EXTERN_C int _gl_cxxalias_dummy 216 #endif 217 218 /* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2); 219 is like _GL_CXXALIAS_SYS (func, rettype, parameters); 220 except that the C function is picked among a set of overloaded functions, 221 namely the one with rettype2 and parameters2. Two consecutive casts 222 are used to silence the "cannot find a match" and "invalid conversion" 223 errors that would otherwise occur. */ 224 #if defined __cplusplus && defined GNULIB_NAMESPACE 225 /* The outer cast must be a reinterpret_cast. 226 The inner cast: When the function is defined as a set of overloaded 227 functions, it works as a static_cast<>, choosing the designated variant. 228 When the function is defined as a single variant, it works as a 229 reinterpret_cast<>. The parenthesized cast syntax works both ways. */ 230 # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ 231 namespace GNULIB_NAMESPACE \ 232 { \ 233 static rettype (*func) parameters = \ 234 reinterpret_cast<rettype(*)parameters>( \ 235 (rettype2(*)parameters2)(::func)); \ 236 } \ 237 _GL_EXTERN_C int _gl_cxxalias_dummy 238 #else 239 # define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ 240 _GL_EXTERN_C int _gl_cxxalias_dummy 241 #endif 242 243 /* _GL_CXXALIASWARN (func); 244 causes a warning to be emitted when ::func is used but not when 245 GNULIB_NAMESPACE::func is used. func must be defined without overloaded 246 variants. */ 247 #if defined __cplusplus && defined GNULIB_NAMESPACE 248 # define _GL_CXXALIASWARN(func) \ 249 _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE) 250 # define _GL_CXXALIASWARN_1(func,namespace) \ 251 _GL_CXXALIASWARN_2 (func, namespace) 252 /* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, 253 we enable the warning only when not optimizing. */ 254 # if !__OPTIMIZE__ 255 # define _GL_CXXALIASWARN_2(func,namespace) \ 256 _GL_WARN_ON_USE (func, \ 257 "The symbol ::" #func " refers to the system function. " \ 258 "Use " #namespace "::" #func " instead.") 259 # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 260 # define _GL_CXXALIASWARN_2(func,namespace) \ 261 extern __typeof__ (func) func 262 # else 263 # define _GL_CXXALIASWARN_2(func,namespace) \ 264 _GL_EXTERN_C int _gl_cxxalias_dummy 265 # endif 266 #else 267 # define _GL_CXXALIASWARN(func) \ 268 _GL_EXTERN_C int _gl_cxxalias_dummy 269 #endif 270 271 /* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes); 272 causes a warning to be emitted when the given overloaded variant of ::func 273 is used but not when GNULIB_NAMESPACE::func is used. */ 274 #if defined __cplusplus && defined GNULIB_NAMESPACE 275 # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ 276 _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \ 277 GNULIB_NAMESPACE) 278 # define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \ 279 _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace) 280 /* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, 281 we enable the warning only when not optimizing. */ 282 # if !__OPTIMIZE__ 283 # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 284 _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \ 285 "The symbol ::" #func " refers to the system function. " \ 286 "Use " #namespace "::" #func " instead.") 287 # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 288 # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 289 extern __typeof__ (func) func 290 # else 291 # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 292 _GL_EXTERN_C int _gl_cxxalias_dummy 293 # endif 294 #else 295 # define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ 296 _GL_EXTERN_C int _gl_cxxalias_dummy 297 #endif 298 299 #endif /* _GL_CXXDEFS_H */ 300 301 /* The definition of _GL_ARG_NONNULL is copied here. */ 302 /* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools 303 that the values passed as arguments n, ..., m must be non-NULL pointers. 304 n = 1 stands for the first argument, n = 2 for the second argument etc. */ 305 #ifndef _GL_ARG_NONNULL 306 # if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3 307 # define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params)) 308 # else 309 # define _GL_ARG_NONNULL(params) 310 # endif 311 #endif 312 313 /* The definition of _GL_WARN_ON_USE is copied here. */ 314 #ifndef _GL_WARN_ON_USE 315 316 # if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) 317 /* A compiler attribute is available in gcc versions 4.3.0 and later. */ 318 # define _GL_WARN_ON_USE(function, message) \ 319 extern __typeof__ (function) function __attribute__ ((__warning__ (message))) 320 # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 321 /* Verify the existence of the function. */ 322 # define _GL_WARN_ON_USE(function, message) \ 323 extern __typeof__ (function) function 324 # else /* Unsupported. */ 325 # define _GL_WARN_ON_USE(function, message) \ 326 _GL_WARN_EXTERN_C int _gl_warn_on_use 327 # endif 328 #endif 329 330 /* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string") 331 is like _GL_WARN_ON_USE (function, "string"), except that the function is 332 declared with the given prototype, consisting of return type, parameters, 333 and attributes. 334 This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does 335 not work in this case. */ 336 #ifndef _GL_WARN_ON_USE_CXX 337 # if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) 338 # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 339 extern rettype function parameters_and_attributes \ 340 __attribute__ ((__warning__ (msg))) 341 # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 342 /* Verify the existence of the function. */ 343 # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 344 extern rettype function parameters_and_attributes 345 # else /* Unsupported. */ 346 # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 347 _GL_WARN_EXTERN_C int _gl_warn_on_use 348 # endif 349 #endif 350 351 /* _GL_WARN_EXTERN_C declaration; 352 performs the declaration with C linkage. */ 353 #ifndef _GL_WARN_EXTERN_C 354 # if defined __cplusplus 355 # define _GL_WARN_EXTERN_C extern "C" 356 # else 357 # define _GL_WARN_EXTERN_C extern 358 # endif 359 #endif 360 361 /* Some systems don't define struct timespec (e.g., AIX 4.1, Ultrix 4.3). 362 Or they define it with the wrong member names or define it in <sys/time.h> 363 (e.g., FreeBSD circa 1997). Stock Mingw does not define it, but the 364 pthreads-win32 library defines it in <pthread.h>. */ 365 # if ! 1 366 # if 0 367 # include <sys/time.h> 368 # elif 0 369 # include <pthread.h> 370 /* The pthreads-win32 <pthread.h> also defines a couple of broken macros. */ 371 # undef asctime_r 372 # undef ctime_r 373 # undef gmtime_r 374 # undef localtime_r 375 # undef rand_r 376 # undef strtok_r 377 # else 378 379 # ifdef __cplusplus 380 extern "C" { 381 # endif 382 383 # if !GNULIB_defined_struct_timespec 384 # undef timespec 385 # define timespec rpl_timespec 386 struct timespec 387 { 388 time_t tv_sec; 389 long int tv_nsec; 390 }; 391 # define GNULIB_defined_struct_timespec 1 392 # endif 393 394 # ifdef __cplusplus 395 } 396 # endif 397 398 # endif 399 # endif 400 401 # if !GNULIB_defined_struct_time_t_must_be_integral 402 /* Per http://austingroupbugs.net/view.php?id=327, POSIX requires 403 time_t to be an integer type, even though C99 permits floating 404 point. We don't know of any implementation that uses floating 405 point, and it is much easier to write code that doesn't have to 406 worry about that corner case, so we force the issue. */ 407 struct __time_t_must_be_integral { 408 unsigned int __floating_time_t_unsupported : (time_t) 1; 409 }; 410 # define GNULIB_defined_struct_time_t_must_be_integral 1 411 # endif 412 413 /* Sleep for at least RQTP seconds unless interrupted, If interrupted, 414 return -1 and store the remaining time into RMTP. See 415 <http://www.opengroup.org/susv3xsh/nanosleep.html>. */ 416 # if 0 417 # if GNULIB_PORTCHECK 418 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 419 # define nanosleep rpl_nanosleep 420 # endif 421 _GL_FUNCDECL_RPL (nanosleep, int, 422 (struct timespec const *__rqtp, struct timespec *__rmtp) 423 _GL_ARG_NONNULL ((1))); 424 _GL_CXXALIAS_RPL (nanosleep, int, 425 (struct timespec const *__rqtp, struct timespec *__rmtp)); 426 # else 427 # if ! 1 428 _GL_FUNCDECL_SYS (nanosleep, int, 429 (struct timespec const *__rqtp, struct timespec *__rmtp) 430 _GL_ARG_NONNULL ((1))); 431 # endif 432 _GL_CXXALIAS_SYS (nanosleep, int, 433 (struct timespec const *__rqtp, struct timespec *__rmtp)); 434 # endif 435 _GL_CXXALIASWARN (nanosleep); 436 # endif 437 438 /* Return the 'time_t' representation of TP and normalize TP. */ 439 # if 0 440 # if GNULIB_PORTCHECK 441 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 442 # define mktime rpl_mktime 443 # endif 444 _GL_FUNCDECL_RPL (mktime, time_t, (struct tm *__tp) _GL_ARG_NONNULL ((1))); 445 _GL_CXXALIAS_RPL (mktime, time_t, (struct tm *__tp)); 446 # else 447 _GL_CXXALIAS_SYS (mktime, time_t, (struct tm *__tp)); 448 # endif 449 _GL_CXXALIASWARN (mktime); 450 # endif 451 452 /* Convert TIMER to RESULT, assuming local time and UTC respectively. See 453 <http://www.opengroup.org/susv3xsh/localtime_r.html> and 454 <http://www.opengroup.org/susv3xsh/gmtime_r.html>. */ 455 # if 0 456 # if GNULIB_PORTCHECK 457 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 458 # undef localtime_r 459 # define localtime_r rpl_localtime_r 460 # endif 461 _GL_FUNCDECL_RPL (localtime_r, struct tm *, (time_t const *restrict __timer, 462 struct tm *restrict __result) 463 _GL_ARG_NONNULL ((1, 2))); 464 _GL_CXXALIAS_RPL (localtime_r, struct tm *, (time_t const *restrict __timer, 465 struct tm *restrict __result)); 466 # else 467 # if ! 1 468 _GL_FUNCDECL_SYS (localtime_r, struct tm *, (time_t const *restrict __timer, 469 struct tm *restrict __result) 470 _GL_ARG_NONNULL ((1, 2))); 471 # endif 472 _GL_CXXALIAS_SYS (localtime_r, struct tm *, (time_t const *restrict __timer, 473 struct tm *restrict __result)); 474 # endif 475 # if 1 476 _GL_CXXALIASWARN (localtime_r); 477 # endif 478 # if GNULIB_PORTCHECK 479 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 480 # undef gmtime_r 481 # define gmtime_r rpl_gmtime_r 482 # endif 483 _GL_FUNCDECL_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer, 484 struct tm *restrict __result) 485 _GL_ARG_NONNULL ((1, 2))); 486 _GL_CXXALIAS_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer, 487 struct tm *restrict __result)); 488 # else 489 # if ! 1 490 _GL_FUNCDECL_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer, 491 struct tm *restrict __result) 492 _GL_ARG_NONNULL ((1, 2))); 493 # endif 494 _GL_CXXALIAS_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer, 495 struct tm *restrict __result)); 496 # endif 497 # if 1 498 _GL_CXXALIASWARN (gmtime_r); 499 # endif 500 # endif 501 502 /* Parse BUF as a time stamp, assuming FORMAT specifies its layout, and store 503 the resulting broken-down time into TM. See 504 <http://www.opengroup.org/susv3xsh/strptime.html>. */ 505 # if 0 506 # if ! 1 507 _GL_FUNCDECL_SYS (strptime, char *, (char const *restrict __buf, 508 char const *restrict __format, 509 struct tm *restrict __tm) 510 _GL_ARG_NONNULL ((1, 2, 3))); 511 # endif 512 _GL_CXXALIAS_SYS (strptime, char *, (char const *restrict __buf, 513 char const *restrict __format, 514 struct tm *restrict __tm)); 515 _GL_CXXALIASWARN (strptime); 516 # endif 517 518 /* Convert TM to a time_t value, assuming UTC. */ 519 # if 0 520 # if GNULIB_PORTCHECK 521 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 522 # undef timegm 523 # define timegm rpl_timegm 524 # endif 525 _GL_FUNCDECL_RPL (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1))); 526 _GL_CXXALIAS_RPL (timegm, time_t, (struct tm *__tm)); 527 # else 528 # if ! 1 529 _GL_FUNCDECL_SYS (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1))); 530 # endif 531 _GL_CXXALIAS_SYS (timegm, time_t, (struct tm *__tm)); 532 # endif 533 _GL_CXXALIASWARN (timegm); 534 # endif 535 536 /* Encourage applications to avoid unsafe functions that can overrun 537 buffers when given outlandish struct tm values. Portable 538 applications should use strftime (or even sprintf) instead. */ 539 # if defined GNULIB_POSIXCHECK 540 # undef asctime 541 _GL_WARN_ON_USE (asctime, "asctime can overrun buffers in some cases - " 542 "better use strftime (or even sprintf) instead"); 543 # endif 544 # if defined GNULIB_POSIXCHECK 545 # undef asctime_r 546 _GL_WARN_ON_USE (asctime, "asctime_r can overrun buffers in some cases - " 547 "better use strftime (or even sprintf) instead"); 548 # endif 549 # if defined GNULIB_POSIXCHECK 550 # undef ctime 551 _GL_WARN_ON_USE (asctime, "ctime can overrun buffers in some cases - " 552 "better use strftime (or even sprintf) instead"); 553 # endif 554 # if defined GNULIB_POSIXCHECK 555 # undef ctime_r 556 _GL_WARN_ON_USE (asctime, "ctime_r can overrun buffers in some cases - " 557 "better use strftime (or even sprintf) instead"); 558 # endif 559 560 #endif 561
