| 41b152c5 |
1 | /** @file\r |
| 2 | Symbols and macros to supply platform-independent interfaces to basic\r |
| 3 | C language & library operations whose spellings vary across platforms.\r |
| 4 | \r |
| 5 | Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>\r |
| 6 | This program and the accompanying materials are licensed and made available under\r |
| 7 | the terms and conditions of the BSD License that accompanies this distribution.\r |
| 8 | The full text of the license may be found at\r |
| 9 | http://opensource.org/licenses/bsd-license.\r |
| 10 | \r |
| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 13 | **/\r |
| 6c0ebd5f |
14 | #ifndef Py_PYPORT_H\r |
| 15 | #define Py_PYPORT_H\r |
| 16 | \r |
| 17 | #include "pyconfig.h" /* include for defines */\r |
| 18 | \r |
| 19 | /* Some versions of HP-UX & Solaris need inttypes.h for int32_t,\r |
| 20 | INT32_MAX, etc. */\r |
| 21 | #ifdef HAVE_INTTYPES_H\r |
| 22 | #include <inttypes.h>\r |
| 23 | #endif\r |
| 24 | \r |
| 25 | #ifdef HAVE_STDINT_H\r |
| 26 | #include <stdint.h>\r |
| 27 | #endif\r |
| 28 | \r |
| 29 | /**************************************************************************\r |
| 30 | Symbols and macros to supply platform-independent interfaces to basic\r |
| 31 | C language & library operations whose spellings vary across platforms.\r |
| 32 | \r |
| 33 | Please try to make documentation here as clear as possible: by definition,\r |
| 34 | the stuff here is trying to illuminate C's darkest corners.\r |
| 35 | \r |
| 36 | Config #defines referenced here:\r |
| 37 | \r |
| 38 | SIGNED_RIGHT_SHIFT_ZERO_FILLS\r |
| 39 | Meaning: To be defined iff i>>j does not extend the sign bit when i is a\r |
| 40 | signed integral type and i < 0.\r |
| 41 | Used in: Py_ARITHMETIC_RIGHT_SHIFT\r |
| 42 | \r |
| 43 | Py_DEBUG\r |
| 44 | Meaning: Extra checks compiled in for debug mode.\r |
| 45 | Used in: Py_SAFE_DOWNCAST\r |
| 46 | \r |
| 47 | HAVE_UINTPTR_T\r |
| 48 | Meaning: The C9X type uintptr_t is supported by the compiler\r |
| 49 | Used in: Py_uintptr_t\r |
| 50 | \r |
| 51 | HAVE_LONG_LONG\r |
| 52 | Meaning: The compiler supports the C type "long long"\r |
| 53 | Used in: PY_LONG_LONG\r |
| 54 | \r |
| 55 | **************************************************************************/\r |
| 56 | \r |
| 57 | \r |
| 58 | /* For backward compatibility only. Obsolete, do not use. */\r |
| 59 | #ifdef HAVE_PROTOTYPES\r |
| 60 | #define Py_PROTO(x) x\r |
| 61 | #else\r |
| 62 | #define Py_PROTO(x) ()\r |
| 63 | #endif\r |
| 64 | #ifndef Py_FPROTO\r |
| 65 | #define Py_FPROTO(x) Py_PROTO(x)\r |
| 66 | #endif\r |
| 67 | \r |
| 68 | /* typedefs for some C9X-defined synonyms for integral types.\r |
| 69 | *\r |
| 70 | * The names in Python are exactly the same as the C9X names, except with a\r |
| 71 | * Py_ prefix. Until C9X is universally implemented, this is the only way\r |
| 72 | * to ensure that Python gets reliable names that don't conflict with names\r |
| 73 | * in non-Python code that are playing their own tricks to define the C9X\r |
| 74 | * names.\r |
| 75 | *\r |
| 76 | * NOTE: don't go nuts here! Python has no use for *most* of the C9X\r |
| 77 | * integral synonyms. Only define the ones we actually need.\r |
| 78 | */\r |
| 79 | \r |
| 80 | #ifdef HAVE_LONG_LONG\r |
| 81 | #ifndef PY_LONG_LONG\r |
| 82 | #define PY_LONG_LONG long long\r |
| 83 | #if defined(LLONG_MAX)\r |
| 84 | /* If LLONG_MAX is defined in limits.h, use that. */\r |
| 85 | #define PY_LLONG_MIN LLONG_MIN\r |
| 86 | #define PY_LLONG_MAX LLONG_MAX\r |
| 87 | #define PY_ULLONG_MAX ULLONG_MAX\r |
| 88 | #elif defined(__LONG_LONG_MAX__)\r |
| 89 | /* Otherwise, if GCC has a builtin define, use that. */\r |
| 90 | #define PY_LLONG_MAX __LONG_LONG_MAX__\r |
| 91 | #define PY_LLONG_MIN (-PY_LLONG_MAX-1)\r |
| 92 | #define PY_ULLONG_MAX (__LONG_LONG_MAX__*2ULL + 1ULL)\r |
| 93 | #else\r |
| 94 | /* Otherwise, rely on two's complement. */\r |
| 95 | #define PY_ULLONG_MAX (~0ULL)\r |
| 96 | #define PY_LLONG_MAX ((long long)(PY_ULLONG_MAX>>1))\r |
| 97 | #define PY_LLONG_MIN (-PY_LLONG_MAX-1)\r |
| 98 | #endif /* LLONG_MAX */\r |
| 99 | #endif\r |
| 100 | #endif /* HAVE_LONG_LONG */\r |
| 101 | \r |
| 102 | /* a build with 30-bit digits for Python long integers needs an exact-width\r |
| 103 | * 32-bit unsigned integer type to store those digits. (We could just use\r |
| 104 | * type 'unsigned long', but that would be wasteful on a system where longs\r |
| 105 | * are 64-bits.) On Unix systems, the autoconf macro AC_TYPE_UINT32_T defines\r |
| 106 | * uint32_t to be such a type unless stdint.h or inttypes.h defines uint32_t.\r |
| 107 | * However, it doesn't set HAVE_UINT32_T, so we do that here.\r |
| 108 | */\r |
| 109 | #if (defined UINT32_MAX || defined uint32_t)\r |
| 110 | #ifndef PY_UINT32_T\r |
| 111 | #define HAVE_UINT32_T 1\r |
| 112 | #define PY_UINT32_T uint32_t\r |
| 113 | #endif\r |
| 114 | #endif\r |
| 115 | \r |
| 116 | /* Macros for a 64-bit unsigned integer type; used for type 'twodigits' in the\r |
| 117 | * long integer implementation, when 30-bit digits are enabled.\r |
| 118 | */\r |
| 119 | #if (defined UINT64_MAX || defined uint64_t)\r |
| 120 | #ifndef PY_UINT64_T\r |
| 121 | #define HAVE_UINT64_T 1\r |
| 122 | #define PY_UINT64_T uint64_t\r |
| 123 | #endif\r |
| 124 | #endif\r |
| 125 | \r |
| 126 | /* Signed variants of the above */\r |
| 127 | #if (defined INT32_MAX || defined int32_t)\r |
| 128 | #ifndef PY_INT32_T\r |
| 129 | #define HAVE_INT32_T 1\r |
| 130 | #define PY_INT32_T int32_t\r |
| 131 | #endif\r |
| 132 | #endif\r |
| 133 | #if (defined INT64_MAX || defined int64_t)\r |
| 134 | #ifndef PY_INT64_T\r |
| 135 | #define HAVE_INT64_T 1\r |
| 136 | #define PY_INT64_T int64_t\r |
| 137 | #endif\r |
| 138 | #endif\r |
| 139 | \r |
| 140 | /* If PYLONG_BITS_IN_DIGIT is not defined then we'll use 30-bit digits if all\r |
| 141 | the necessary integer types are available, and we're on a 64-bit platform\r |
| 142 | (as determined by SIZEOF_VOID_P); otherwise we use 15-bit digits. */\r |
| 143 | \r |
| 144 | #ifndef PYLONG_BITS_IN_DIGIT\r |
| 145 | #if (defined HAVE_UINT64_T && defined HAVE_INT64_T && \\r |
| 146 | defined HAVE_UINT32_T && defined HAVE_INT32_T && SIZEOF_VOID_P >= 8)\r |
| 147 | #define PYLONG_BITS_IN_DIGIT 30\r |
| 148 | #else\r |
| 149 | #define PYLONG_BITS_IN_DIGIT 15\r |
| 150 | #endif\r |
| 151 | #endif\r |
| 152 | \r |
| 153 | /* uintptr_t is the C9X name for an unsigned integral type such that a\r |
| 154 | * legitimate void* can be cast to uintptr_t and then back to void* again\r |
| 155 | * without loss of information. Similarly for intptr_t, wrt a signed\r |
| 156 | * integral type.\r |
| 157 | */\r |
| 158 | #ifdef HAVE_UINTPTR_T\r |
| 159 | typedef uintptr_t Py_uintptr_t;\r |
| 160 | typedef intptr_t Py_intptr_t;\r |
| 161 | \r |
| 162 | #elif SIZEOF_VOID_P <= SIZEOF_INT\r |
| 163 | typedef unsigned int Py_uintptr_t;\r |
| 164 | typedef int Py_intptr_t;\r |
| 165 | \r |
| 166 | #elif SIZEOF_VOID_P <= SIZEOF_LONG\r |
| 167 | typedef unsigned long Py_uintptr_t;\r |
| 168 | typedef long Py_intptr_t;\r |
| 169 | \r |
| 170 | #elif defined(HAVE_LONG_LONG) && (SIZEOF_VOID_P <= SIZEOF_LONG_LONG)\r |
| 171 | typedef unsigned PY_LONG_LONG Py_uintptr_t;\r |
| 172 | typedef PY_LONG_LONG Py_intptr_t;\r |
| 173 | \r |
| 174 | #else\r |
| 175 | # error "Python needs a typedef for Py_uintptr_t in pyport.h."\r |
| 176 | #endif /* HAVE_UINTPTR_T */\r |
| 177 | \r |
| 178 | /* Py_ssize_t is a signed integral type such that sizeof(Py_ssize_t) ==\r |
| 179 | * sizeof(size_t). C99 doesn't define such a thing directly (size_t is an\r |
| 180 | * unsigned integral type). See PEP 353 for details.\r |
| 181 | */\r |
| 182 | #ifdef HAVE_SSIZE_T\r |
| 183 | typedef ssize_t Py_ssize_t;\r |
| 184 | #elif SIZEOF_VOID_P == SIZEOF_SIZE_T\r |
| 185 | typedef Py_intptr_t Py_ssize_t;\r |
| 186 | #else\r |
| 187 | # error "Python needs a typedef for Py_ssize_t in pyport.h."\r |
| 188 | #endif\r |
| 189 | \r |
| 190 | /* Largest possible value of size_t.\r |
| 191 | SIZE_MAX is part of C99, so it might be defined on some\r |
| 192 | platforms. If it is not defined, (size_t)-1 is a portable\r |
| 193 | definition for C89, due to the way signed->unsigned\r |
| 194 | conversion is defined. */\r |
| 195 | #ifdef SIZE_MAX\r |
| 196 | #define PY_SIZE_MAX SIZE_MAX\r |
| 197 | #else\r |
| 198 | #define PY_SIZE_MAX ((size_t)-1)\r |
| 199 | #endif\r |
| 200 | \r |
| 201 | /* Largest positive value of type Py_ssize_t. */\r |
| 202 | #define PY_SSIZE_T_MAX ((Py_ssize_t)(((size_t)-1)>>1))\r |
| 203 | /* Smallest negative value of type Py_ssize_t. */\r |
| 204 | #define PY_SSIZE_T_MIN (-PY_SSIZE_T_MAX-1)\r |
| 205 | \r |
| 206 | #if SIZEOF_PID_T > SIZEOF_LONG\r |
| 207 | # error "Python doesn't support sizeof(pid_t) > sizeof(long)"\r |
| 208 | #endif\r |
| 209 | \r |
| 210 | /* PY_FORMAT_SIZE_T is a platform-specific modifier for use in a printf\r |
| 211 | * format to convert an argument with the width of a size_t or Py_ssize_t.\r |
| 212 | * C99 introduced "z" for this purpose, but not all platforms support that;\r |
| 213 | * e.g., MS compilers use "I" instead.\r |
| 214 | *\r |
| 215 | * These "high level" Python format functions interpret "z" correctly on\r |
| 216 | * all platforms (Python interprets the format string itself, and does whatever\r |
| 217 | * the platform C requires to convert a size_t/Py_ssize_t argument):\r |
| 218 | *\r |
| 219 | * PyString_FromFormat\r |
| 220 | * PyErr_Format\r |
| 221 | * PyString_FromFormatV\r |
| 222 | *\r |
| 223 | * Lower-level uses require that you interpolate the correct format modifier\r |
| 224 | * yourself (e.g., calling printf, fprintf, sprintf, PyOS_snprintf); for\r |
| 225 | * example,\r |
| 226 | *\r |
| 227 | * Py_ssize_t index;\r |
| 228 | * fprintf(stderr, "index %" PY_FORMAT_SIZE_T "d sucks\n", index);\r |
| 229 | *\r |
| 230 | * That will expand to %ld, or %Id, or to something else correct for a\r |
| 231 | * Py_ssize_t on the platform.\r |
| 232 | */\r |
| 233 | #ifndef PY_FORMAT_SIZE_T\r |
| 234 | # if SIZEOF_SIZE_T == SIZEOF_INT && !defined(__APPLE__)\r |
| 235 | # define PY_FORMAT_SIZE_T ""\r |
| 236 | # elif SIZEOF_SIZE_T == SIZEOF_LONG\r |
| 237 | # define PY_FORMAT_SIZE_T "l"\r |
| 238 | # elif defined(MS_WINDOWS)\r |
| 239 | # define PY_FORMAT_SIZE_T "I"\r |
| 240 | # else\r |
| 241 | # error "This platform's pyconfig.h needs to define PY_FORMAT_SIZE_T"\r |
| 242 | # endif\r |
| 243 | #endif\r |
| 244 | \r |
| 245 | /* PY_FORMAT_LONG_LONG is analogous to PY_FORMAT_SIZE_T above, but for\r |
| 246 | * the long long type instead of the size_t type. It's only available\r |
| 247 | * when HAVE_LONG_LONG is defined. The "high level" Python format\r |
| 248 | * functions listed above will interpret "lld" or "llu" correctly on\r |
| 249 | * all platforms.\r |
| 250 | */\r |
| 251 | #ifdef HAVE_LONG_LONG\r |
| 252 | # ifndef PY_FORMAT_LONG_LONG\r |
| 253 | # if defined(MS_WIN64) || defined(MS_WINDOWS)\r |
| 254 | # define PY_FORMAT_LONG_LONG "I64"\r |
| 255 | # else\r |
| 256 | # error "This platform's pyconfig.h needs to define PY_FORMAT_LONG_LONG"\r |
| 257 | # endif\r |
| 258 | # endif\r |
| 259 | #endif\r |
| 260 | \r |
| 261 | /* Py_LOCAL can be used instead of static to get the fastest possible calling\r |
| 262 | * convention for functions that are local to a given module.\r |
| 263 | *\r |
| 264 | * Py_LOCAL_INLINE does the same thing, and also explicitly requests inlining,\r |
| 265 | * for platforms that support that.\r |
| 266 | *\r |
| 267 | * If PY_LOCAL_AGGRESSIVE is defined before python.h is included, more\r |
| 268 | * "aggressive" inlining/optimizaion is enabled for the entire module. This\r |
| 269 | * may lead to code bloat, and may slow things down for those reasons. It may\r |
| 270 | * also lead to errors, if the code relies on pointer aliasing. Use with\r |
| 271 | * care.\r |
| 272 | *\r |
| 273 | * NOTE: You can only use this for functions that are entirely local to a\r |
| 274 | * module; functions that are exported via method tables, callbacks, etc,\r |
| 275 | * should keep using static.\r |
| 276 | */\r |
| 277 | \r |
| 278 | #undef USE_INLINE /* XXX - set via configure? */\r |
| 279 | \r |
| 280 | #if defined(_MSC_VER)\r |
| 281 | #if defined(PY_LOCAL_AGGRESSIVE)\r |
| 282 | /* enable more aggressive optimization for visual studio */\r |
| 283 | //#pragma optimize("agtw", on)\r |
| 284 | #pragma optimize("gt", on) // a and w are not legal for VS2005\r |
| 285 | #endif\r |
| 286 | /* ignore warnings if the compiler decides not to inline a function */\r |
| 287 | #pragma warning(disable: 4710)\r |
| 288 | /* fastest possible local call under MSVC */\r |
| 289 | #define Py_LOCAL(type) static type __fastcall\r |
| 290 | #define Py_LOCAL_INLINE(type) static __inline type __fastcall\r |
| 291 | #elif defined(USE_INLINE)\r |
| 292 | #define Py_LOCAL(type) static type\r |
| 293 | #define Py_LOCAL_INLINE(type) static inline type\r |
| 294 | #else\r |
| 295 | #define Py_LOCAL(type) static type\r |
| 296 | #define Py_LOCAL_INLINE(type) static type\r |
| 297 | #endif\r |
| 298 | \r |
| 299 | /* Py_MEMCPY can be used instead of memcpy in cases where the copied blocks\r |
| 300 | * are often very short. While most platforms have highly optimized code for\r |
| 301 | * large transfers, the setup costs for memcpy are often quite high. MEMCPY\r |
| 302 | * solves this by doing short copies "in line".\r |
| 303 | */\r |
| 304 | \r |
| 305 | #if defined(_MSC_VER)\r |
| 306 | #define Py_MEMCPY(target, source, length) do { \\r |
| 307 | size_t i_, n_ = (length); \\r |
| 308 | char *t_ = (void*) (target); \\r |
| 309 | const char *s_ = (void*) (source); \\r |
| 310 | if (n_ >= 16) \\r |
| 311 | memcpy(t_, s_, n_); \\r |
| 312 | else \\r |
| 313 | for (i_ = 0; i_ < n_; i_++) \\r |
| 314 | t_[i_] = s_[i_]; \\r |
| 315 | } while (0)\r |
| 316 | #else\r |
| 317 | #define Py_MEMCPY memcpy\r |
| 318 | #endif\r |
| 319 | \r |
| 320 | #include <stdlib.h>\r |
| 321 | \r |
| 322 | #ifdef HAVE_IEEEFP_H\r |
| 323 | #include <ieeefp.h> /* needed for 'finite' declaration on some platforms */\r |
| 324 | #endif\r |
| 325 | \r |
| 326 | #include <math.h> /* Moved here from the math section, before extern "C" */\r |
| 327 | \r |
| 328 | /********************************************\r |
| 329 | * WRAPPER FOR <time.h> and/or <sys/time.h> *\r |
| 330 | ********************************************/\r |
| 331 | \r |
| 332 | #ifdef TIME_WITH_SYS_TIME\r |
| 333 | #include <sys/time.h>\r |
| 334 | #include <time.h>\r |
| 335 | #else /* !TIME_WITH_SYS_TIME */\r |
| 336 | #ifdef HAVE_SYS_TIME_H\r |
| 337 | #include <sys/time.h>\r |
| 338 | #else /* !HAVE_SYS_TIME_H */\r |
| 339 | #include <time.h>\r |
| 340 | #endif /* !HAVE_SYS_TIME_H */\r |
| 341 | #endif /* !TIME_WITH_SYS_TIME */\r |
| 342 | \r |
| 343 | \r |
| 344 | /******************************\r |
| 345 | * WRAPPER FOR <sys/select.h> *\r |
| 346 | ******************************/\r |
| 347 | \r |
| 348 | /* NB caller must include <sys/types.h> */\r |
| 349 | \r |
| 350 | #ifdef HAVE_SYS_SELECT_H\r |
| 351 | \r |
| 352 | #include <sys/select.h>\r |
| 353 | \r |
| 354 | #endif /* !HAVE_SYS_SELECT_H */\r |
| 355 | \r |
| 356 | /*******************************\r |
| 357 | * stat() and fstat() fiddling *\r |
| 358 | *******************************/\r |
| 359 | \r |
| 360 | /* We expect that stat and fstat exist on most systems.\r |
| 361 | * It's confirmed on Unix, Mac and Windows.\r |
| 362 | * If you don't have them, add\r |
| 363 | * #define DONT_HAVE_STAT\r |
| 364 | * and/or\r |
| 365 | * #define DONT_HAVE_FSTAT\r |
| 366 | * to your pyconfig.h. Python code beyond this should check HAVE_STAT and\r |
| 367 | * HAVE_FSTAT instead.\r |
| 368 | * Also\r |
| 369 | * #define HAVE_SYS_STAT_H\r |
| 370 | * if <sys/stat.h> exists on your platform, and\r |
| 371 | * #define HAVE_STAT_H\r |
| 372 | * if <stat.h> does.\r |
| 373 | */\r |
| 374 | #ifndef DONT_HAVE_STAT\r |
| 375 | #define HAVE_STAT\r |
| 376 | #endif\r |
| 377 | \r |
| 378 | #ifndef DONT_HAVE_FSTAT\r |
| 379 | #define HAVE_FSTAT\r |
| 380 | #endif\r |
| 381 | \r |
| 382 | #ifdef RISCOS\r |
| 383 | #include <sys/types.h>\r |
| 384 | #include "unixstuff.h"\r |
| 385 | #endif\r |
| 386 | \r |
| 387 | #ifdef HAVE_SYS_STAT_H\r |
| 388 | #if defined(PYOS_OS2) && defined(PYCC_GCC)\r |
| 389 | #include <sys/types.h>\r |
| 390 | #endif\r |
| 391 | #include <sys/stat.h>\r |
| 392 | #elif defined(HAVE_STAT_H)\r |
| 393 | #include <stat.h>\r |
| 394 | #endif\r |
| 395 | \r |
| 396 | #if defined(PYCC_VACPP)\r |
| 397 | /* VisualAge C/C++ Failed to Define MountType Field in sys/stat.h */\r |
| 398 | #define S_IFMT (S_IFDIR|S_IFCHR|S_IFREG)\r |
| 399 | #endif\r |
| 400 | \r |
| 401 | #ifndef S_ISREG\r |
| 402 | #define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)\r |
| 403 | #endif\r |
| 404 | \r |
| 405 | #ifndef S_ISDIR\r |
| 406 | #define S_ISDIR(x) (((x) & S_IFMT) == S_IFDIR)\r |
| 407 | #endif\r |
| 408 | \r |
| 409 | \r |
| 410 | #ifdef __cplusplus\r |
| 411 | /* Move this down here since some C++ #include's don't like to be included\r |
| 412 | inside an extern "C" */\r |
| 413 | extern "C" {\r |
| 414 | #endif\r |
| 415 | \r |
| 416 | \r |
| 417 | /* Py_ARITHMETIC_RIGHT_SHIFT\r |
| 418 | * C doesn't define whether a right-shift of a signed integer sign-extends\r |
| 419 | * or zero-fills. Here a macro to force sign extension:\r |
| 420 | * Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J)\r |
| 421 | * Return I >> J, forcing sign extension. Arithmetically, return the\r |
| 422 | * floor of I/2**J.\r |
| 423 | * Requirements:\r |
| 424 | * I should have signed integer type. In the terminology of C99, this can\r |
| 425 | * be either one of the five standard signed integer types (signed char,\r |
| 426 | * short, int, long, long long) or an extended signed integer type.\r |
| 427 | * J is an integer >= 0 and strictly less than the number of bits in the\r |
| 428 | * type of I (because C doesn't define what happens for J outside that\r |
| 429 | * range either).\r |
| 430 | * TYPE used to specify the type of I, but is now ignored. It's been left\r |
| 431 | * in for backwards compatibility with versions <= 2.6 or 3.0.\r |
| 432 | * Caution:\r |
| 433 | * I may be evaluated more than once.\r |
| 434 | */\r |
| 435 | #ifdef SIGNED_RIGHT_SHIFT_ZERO_FILLS\r |
| 436 | #define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) \\r |
| 437 | ((I) < 0 ? -1-((-1-(I)) >> (J)) : (I) >> (J))\r |
| 438 | #else\r |
| 439 | #define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) ((I) >> (J))\r |
| 440 | #endif\r |
| 441 | \r |
| 442 | /* Py_FORCE_EXPANSION(X)\r |
| 443 | * "Simply" returns its argument. However, macro expansions within the\r |
| 444 | * argument are evaluated. This unfortunate trickery is needed to get\r |
| 445 | * token-pasting to work as desired in some cases.\r |
| 446 | */\r |
| 447 | #define Py_FORCE_EXPANSION(X) X\r |
| 448 | \r |
| 449 | /* Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW)\r |
| 450 | * Cast VALUE to type NARROW from type WIDE. In Py_DEBUG mode, this\r |
| 451 | * assert-fails if any information is lost.\r |
| 452 | * Caution:\r |
| 453 | * VALUE may be evaluated more than once.\r |
| 454 | */\r |
| 455 | #ifdef Py_DEBUG\r |
| 456 | #define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) \\r |
| 457 | (assert((WIDE)(NARROW)(VALUE) == (VALUE)), (NARROW)(VALUE))\r |
| 458 | #else\r |
| 459 | #define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) (NARROW)(VALUE)\r |
| 460 | #endif\r |
| 461 | \r |
| 462 | /* Py_SET_ERRNO_ON_MATH_ERROR(x)\r |
| 463 | * If a libm function did not set errno, but it looks like the result\r |
| 464 | * overflowed or not-a-number, set errno to ERANGE or EDOM. Set errno\r |
| 465 | * to 0 before calling a libm function, and invoke this macro after,\r |
| 466 | * passing the function result.\r |
| 467 | * Caution:\r |
| 468 | * This isn't reliable. See Py_OVERFLOWED comments.\r |
| 469 | * X is evaluated more than once.\r |
| 470 | */\r |
| 471 | #if defined(__FreeBSD__) || defined(__OpenBSD__) || (defined(__hpux) && defined(__ia64))\r |
| 472 | #define _Py_SET_EDOM_FOR_NAN(X) if (isnan(X)) errno = EDOM;\r |
| 473 | #else\r |
| 474 | #define _Py_SET_EDOM_FOR_NAN(X) ;\r |
| 475 | #endif\r |
| 476 | #define Py_SET_ERRNO_ON_MATH_ERROR(X) \\r |
| 477 | do { \\r |
| 478 | if (errno == 0) { \\r |
| 479 | if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL) \\r |
| 480 | errno = ERANGE; \\r |
| 481 | else _Py_SET_EDOM_FOR_NAN(X) \\r |
| 482 | } \\r |
| 483 | } while(0)\r |
| 484 | \r |
| 485 | /* Py_SET_ERANGE_ON_OVERFLOW(x)\r |
| 486 | * An alias of Py_SET_ERRNO_ON_MATH_ERROR for backward-compatibility.\r |
| 487 | */\r |
| 488 | #define Py_SET_ERANGE_IF_OVERFLOW(X) Py_SET_ERRNO_ON_MATH_ERROR(X)\r |
| 489 | \r |
| 490 | /* Py_ADJUST_ERANGE1(x)\r |
| 491 | * Py_ADJUST_ERANGE2(x, y)\r |
| 492 | * Set errno to 0 before calling a libm function, and invoke one of these\r |
| 493 | * macros after, passing the function result(s) (Py_ADJUST_ERANGE2 is useful\r |
| 494 | * for functions returning complex results). This makes two kinds of\r |
| 495 | * adjustments to errno: (A) If it looks like the platform libm set\r |
| 496 | * errno=ERANGE due to underflow, clear errno. (B) If it looks like the\r |
| 497 | * platform libm overflowed but didn't set errno, force errno to ERANGE. In\r |
| 498 | * effect, we're trying to force a useful implementation of C89 errno\r |
| 499 | * behavior.\r |
| 500 | * Caution:\r |
| 501 | * This isn't reliable. See Py_OVERFLOWED comments.\r |
| 502 | * X and Y may be evaluated more than once.\r |
| 503 | */\r |
| 504 | #define Py_ADJUST_ERANGE1(X) \\r |
| 505 | do { \\r |
| 506 | if (errno == 0) { \\r |
| 507 | if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL) \\r |
| 508 | errno = ERANGE; \\r |
| 509 | } \\r |
| 510 | else if (errno == ERANGE && (X) == 0.0) \\r |
| 511 | errno = 0; \\r |
| 512 | } while(0)\r |
| 513 | \r |
| 514 | #define Py_ADJUST_ERANGE2(X, Y) \\r |
| 515 | do { \\r |
| 516 | if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL || \\r |
| 517 | (Y) == Py_HUGE_VAL || (Y) == -Py_HUGE_VAL) { \\r |
| 518 | if (errno == 0) \\r |
| 519 | errno = ERANGE; \\r |
| 520 | } \\r |
| 521 | else if (errno == ERANGE) \\r |
| 522 | errno = 0; \\r |
| 523 | } while(0)\r |
| 524 | \r |
| 525 | /* The functions _Py_dg_strtod and _Py_dg_dtoa in Python/dtoa.c (which are\r |
| 526 | * required to support the short float repr introduced in Python 3.1) require\r |
| 527 | * that the floating-point unit that's being used for arithmetic operations\r |
| 528 | * on C doubles is set to use 53-bit precision. It also requires that the\r |
| 529 | * FPU rounding mode is round-half-to-even, but that's less often an issue.\r |
| 530 | *\r |
| 531 | * If your FPU isn't already set to 53-bit precision/round-half-to-even, and\r |
| 532 | * you want to make use of _Py_dg_strtod and _Py_dg_dtoa, then you should\r |
| 533 | *\r |
| 534 | * #define HAVE_PY_SET_53BIT_PRECISION 1\r |
| 535 | *\r |
| 536 | * and also give appropriate definitions for the following three macros:\r |
| 537 | *\r |
| 538 | * _PY_SET_53BIT_PRECISION_START : store original FPU settings, and\r |
| 539 | * set FPU to 53-bit precision/round-half-to-even\r |
| 540 | * _PY_SET_53BIT_PRECISION_END : restore original FPU settings\r |
| 541 | * _PY_SET_53BIT_PRECISION_HEADER : any variable declarations needed to\r |
| 542 | * use the two macros above.\r |
| 543 | *\r |
| 544 | * The macros are designed to be used within a single C function: see\r |
| 545 | * Python/pystrtod.c for an example of their use.\r |
| 546 | */\r |
| 547 | \r |
| 548 | /* get and set x87 control word for gcc/x86 */\r |
| 549 | #ifdef HAVE_GCC_ASM_FOR_X87\r |
| 550 | #define HAVE_PY_SET_53BIT_PRECISION 1\r |
| 551 | /* _Py_get/set_387controlword functions are defined in Python/pymath.c */\r |
| 552 | #define _Py_SET_53BIT_PRECISION_HEADER \\r |
| 553 | unsigned short old_387controlword, new_387controlword\r |
| 554 | #define _Py_SET_53BIT_PRECISION_START \\r |
| 555 | do { \\r |
| 556 | old_387controlword = _Py_get_387controlword(); \\r |
| 557 | new_387controlword = (old_387controlword & ~0x0f00) | 0x0200; \\r |
| 558 | if (new_387controlword != old_387controlword) \\r |
| 559 | _Py_set_387controlword(new_387controlword); \\r |
| 560 | } while (0)\r |
| 561 | #define _Py_SET_53BIT_PRECISION_END \\r |
| 562 | if (new_387controlword != old_387controlword) \\r |
| 563 | _Py_set_387controlword(old_387controlword)\r |
| 564 | #endif\r |
| 565 | \r |
| 566 | /* default definitions are empty */\r |
| 567 | #ifndef HAVE_PY_SET_53BIT_PRECISION\r |
| 568 | #define _Py_SET_53BIT_PRECISION_HEADER\r |
| 569 | #define _Py_SET_53BIT_PRECISION_START\r |
| 570 | #define _Py_SET_53BIT_PRECISION_END\r |
| 571 | #endif\r |
| 572 | \r |
| 573 | /* If we can't guarantee 53-bit precision, don't use the code\r |
| 574 | in Python/dtoa.c, but fall back to standard code. This\r |
| 575 | means that repr of a float will be long (17 sig digits).\r |
| 576 | \r |
| 577 | Realistically, there are two things that could go wrong:\r |
| 578 | \r |
| 579 | (1) doubles aren't IEEE 754 doubles, or\r |
| 580 | (2) we're on x86 with the rounding precision set to 64-bits\r |
| 581 | (extended precision), and we don't know how to change\r |
| 582 | the rounding precision.\r |
| 583 | */\r |
| 584 | \r |
| 585 | #if !defined(DOUBLE_IS_LITTLE_ENDIAN_IEEE754) && \\r |
| 586 | !defined(DOUBLE_IS_BIG_ENDIAN_IEEE754) && \\r |
| 587 | !defined(DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754)\r |
| 588 | #define PY_NO_SHORT_FLOAT_REPR\r |
| 589 | #endif\r |
| 590 | \r |
| 591 | /* double rounding is symptomatic of use of extended precision on x86. If\r |
| 592 | we're seeing double rounding, and we don't have any mechanism available for\r |
| 593 | changing the FPU rounding precision, then don't use Python/dtoa.c. */\r |
| 594 | #if defined(X87_DOUBLE_ROUNDING) && !defined(HAVE_PY_SET_53BIT_PRECISION)\r |
| 595 | #define PY_NO_SHORT_FLOAT_REPR\r |
| 596 | #endif\r |
| 597 | \r |
| 598 | /* Py_DEPRECATED(version)\r |
| 599 | * Declare a variable, type, or function deprecated.\r |
| 600 | * Usage:\r |
| 601 | * extern int old_var Py_DEPRECATED(2.3);\r |
| 602 | * typedef int T1 Py_DEPRECATED(2.4);\r |
| 603 | * extern int x() Py_DEPRECATED(2.5);\r |
| 604 | */\r |
| 605 | #if defined(__GNUC__) && ((__GNUC__ >= 4) || \\r |
| 606 | (__GNUC__ == 3) && (__GNUC_MINOR__ >= 1))\r |
| 607 | #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))\r |
| 608 | #else\r |
| 609 | #define Py_DEPRECATED(VERSION_UNUSED)\r |
| 610 | #endif\r |
| 611 | \r |
| 612 | /**************************************************************************\r |
| 613 | Prototypes that are missing from the standard include files on some systems\r |
| 614 | (and possibly only some versions of such systems.)\r |
| 615 | \r |
| 616 | Please be conservative with adding new ones, document them and enclose them\r |
| 617 | in platform-specific #ifdefs.\r |
| 618 | **************************************************************************/\r |
| 619 | \r |
| 620 | #ifdef SOLARIS\r |
| 621 | /* Unchecked */\r |
| 622 | extern int gethostname(char *, int);\r |
| 623 | #endif\r |
| 624 | \r |
| 625 | #ifdef __BEOS__\r |
| 626 | /* Unchecked */\r |
| 627 | /* It's in the libs, but not the headers... - [cjh] */\r |
| 628 | int shutdown( int, int );\r |
| 629 | #endif\r |
| 630 | \r |
| 631 | #ifdef HAVE__GETPTY\r |
| 632 | #include <sys/types.h> /* we need to import mode_t */\r |
| 633 | extern char * _getpty(int *, int, mode_t, int);\r |
| 634 | #endif\r |
| 635 | \r |
| 636 | /* On QNX 6, struct termio must be declared by including sys/termio.h\r |
| 637 | if TCGETA, TCSETA, TCSETAW, or TCSETAF are used. sys/termio.h must\r |
| 638 | be included before termios.h or it will generate an error. */\r |
| 639 | #ifdef HAVE_SYS_TERMIO_H\r |
| 640 | #include <sys/termio.h>\r |
| 641 | #endif\r |
| 642 | \r |
| 643 | #if defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY)\r |
| 644 | #if !defined(HAVE_PTY_H) && !defined(HAVE_LIBUTIL_H) && !defined(HAVE_UTIL_H)\r |
| 645 | /* BSDI does not supply a prototype for the 'openpty' and 'forkpty'\r |
| 646 | functions, even though they are included in libutil. */\r |
| 647 | #include <termios.h>\r |
| 648 | extern int openpty(int *, int *, char *, struct termios *, struct winsize *);\r |
| 649 | extern pid_t forkpty(int *, char *, struct termios *, struct winsize *);\r |
| 650 | #endif /* !defined(HAVE_PTY_H) && !defined(HAVE_LIBUTIL_H) */\r |
| 651 | #endif /* defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY) */\r |
| 652 | \r |
| 653 | \r |
| 654 | /* These are pulled from various places. It isn't obvious on what platforms\r |
| 655 | they are necessary, nor what the exact prototype should look like (which\r |
| 656 | is likely to vary between platforms!) If you find you need one of these\r |
| 657 | declarations, please move them to a platform-specific block and include\r |
| 658 | proper prototypes. */\r |
| 659 | #if 0\r |
| 660 | \r |
| 661 | /* From Modules/resource.c */\r |
| 662 | extern int getrusage();\r |
| 663 | extern int getpagesize();\r |
| 664 | \r |
| 665 | /* From Python/sysmodule.c and Modules/posixmodule.c */\r |
| 666 | extern int fclose(FILE *);\r |
| 667 | \r |
| 668 | /* From Modules/posixmodule.c */\r |
| 669 | extern int fdatasync(int);\r |
| 670 | #endif /* 0 */\r |
| 671 | \r |
| 672 | \r |
| 673 | /* On 4.4BSD-descendants, ctype functions serves the whole range of\r |
| 674 | * wchar_t character set rather than single byte code points only.\r |
| 675 | * This characteristic can break some operations of string object\r |
| 676 | * including str.upper() and str.split() on UTF-8 locales. This\r |
| 677 | * workaround was provided by Tim Robbins of FreeBSD project.\r |
| 678 | */\r |
| 679 | \r |
| 680 | #ifdef __FreeBSD__\r |
| 681 | #include <osreldate.h>\r |
| 682 | #if __FreeBSD_version > 500039\r |
| 683 | # define _PY_PORT_CTYPE_UTF8_ISSUE\r |
| 684 | #endif\r |
| 685 | #endif\r |
| 686 | \r |
| 687 | \r |
| 688 | #if defined(__APPLE__)\r |
| 689 | # define _PY_PORT_CTYPE_UTF8_ISSUE\r |
| 690 | #endif\r |
| 691 | \r |
| 692 | #ifdef _PY_PORT_CTYPE_UTF8_ISSUE\r |
| 693 | #include <ctype.h>\r |
| 694 | #include <wctype.h>\r |
| 695 | #undef isalnum\r |
| 696 | #define isalnum(c) iswalnum(btowc(c))\r |
| 697 | #undef isalpha\r |
| 698 | #define isalpha(c) iswalpha(btowc(c))\r |
| 699 | #undef islower\r |
| 700 | #define islower(c) iswlower(btowc(c))\r |
| 701 | #undef isspace\r |
| 702 | #define isspace(c) iswspace(btowc(c))\r |
| 703 | #undef isupper\r |
| 704 | #define isupper(c) iswupper(btowc(c))\r |
| 705 | #undef tolower\r |
| 706 | #define tolower(c) towlower(btowc(c))\r |
| 707 | #undef toupper\r |
| 708 | #define toupper(c) towupper(btowc(c))\r |
| 709 | #endif\r |
| 710 | \r |
| 711 | \r |
| 712 | /* Declarations for symbol visibility.\r |
| 713 | \r |
| 714 | PyAPI_FUNC(type): Declares a public Python API function and return type\r |
| 715 | PyAPI_DATA(type): Declares public Python data and its type\r |
| 716 | PyMODINIT_FUNC: A Python module init function. If these functions are\r |
| 717 | inside the Python core, they are private to the core.\r |
| 718 | If in an extension module, it may be declared with\r |
| 719 | external linkage depending on the platform.\r |
| 720 | \r |
| 721 | As a number of platforms support/require "__declspec(dllimport/dllexport)",\r |
| 722 | we support a HAVE_DECLSPEC_DLL macro to save duplication.\r |
| 723 | */\r |
| 724 | \r |
| 725 | /*\r |
| 726 | All windows ports, except cygwin, are handled in PC/pyconfig.h.\r |
| 727 | \r |
| 728 | BeOS and cygwin are the only other autoconf platform requiring special\r |
| 729 | linkage handling and both of these use __declspec().\r |
| 730 | */\r |
| 731 | #if defined(__CYGWIN__) || defined(__BEOS__)\r |
| 732 | # define HAVE_DECLSPEC_DLL\r |
| 733 | #endif\r |
| 734 | \r |
| 735 | /* only get special linkage if built as shared or platform is Cygwin */\r |
| 736 | #if defined(Py_ENABLE_SHARED) || defined(__CYGWIN__)\r |
| 737 | # if defined(HAVE_DECLSPEC_DLL)\r |
| 738 | # ifdef Py_BUILD_CORE\r |
| 739 | # define PyAPI_FUNC(RTYPE) __declspec(dllexport) RTYPE\r |
| 740 | # define PyAPI_DATA(RTYPE) extern __declspec(dllexport) RTYPE\r |
| 741 | /* module init functions inside the core need no external linkage */\r |
| 742 | /* except for Cygwin to handle embedding (FIXME: BeOS too?) */\r |
| 743 | # if defined(__CYGWIN__)\r |
| 744 | # define PyMODINIT_FUNC __declspec(dllexport) void\r |
| 745 | # else /* __CYGWIN__ */\r |
| 746 | # define PyMODINIT_FUNC void\r |
| 747 | # endif /* __CYGWIN__ */\r |
| 748 | # else /* Py_BUILD_CORE */\r |
| 749 | /* Building an extension module, or an embedded situation */\r |
| 750 | /* public Python functions and data are imported */\r |
| 751 | /* Under Cygwin, auto-import functions to prevent compilation */\r |
| 752 | /* failures similar to those described at the bottom of 4.1: */\r |
| 753 | /* http://docs.python.org/extending/windows.html#a-cookbook-approach */\r |
| 754 | # if !defined(__CYGWIN__)\r |
| 755 | # define PyAPI_FUNC(RTYPE) __declspec(dllimport) RTYPE\r |
| 756 | # endif /* !__CYGWIN__ */\r |
| 757 | # define PyAPI_DATA(RTYPE) extern __declspec(dllimport) RTYPE\r |
| 758 | /* module init functions outside the core must be exported */\r |
| 759 | # if defined(__cplusplus)\r |
| 760 | # define PyMODINIT_FUNC extern "C" __declspec(dllexport) void\r |
| 761 | # else /* __cplusplus */\r |
| 762 | # define PyMODINIT_FUNC __declspec(dllexport) void\r |
| 763 | # endif /* __cplusplus */\r |
| 764 | # endif /* Py_BUILD_CORE */\r |
| 765 | # endif /* HAVE_DECLSPEC */\r |
| 766 | #endif /* Py_ENABLE_SHARED */\r |
| 767 | \r |
| 768 | /* If no external linkage macros defined by now, create defaults */\r |
| 769 | #ifndef PyAPI_FUNC\r |
| 770 | # define PyAPI_FUNC(RTYPE) RTYPE\r |
| 771 | #endif\r |
| 772 | #ifndef PyAPI_DATA\r |
| 773 | # define PyAPI_DATA(RTYPE) extern RTYPE\r |
| 774 | #endif\r |
| 775 | #ifndef PyMODINIT_FUNC\r |
| 776 | # if defined(__cplusplus)\r |
| 777 | # define PyMODINIT_FUNC extern "C" void\r |
| 778 | # else /* __cplusplus */\r |
| 779 | # define PyMODINIT_FUNC void\r |
| 780 | # endif /* __cplusplus */\r |
| 781 | #endif\r |
| 782 | \r |
| 783 | /* Deprecated DL_IMPORT and DL_EXPORT macros */\r |
| 784 | #if defined(Py_ENABLE_SHARED) && defined (HAVE_DECLSPEC_DLL)\r |
| 785 | # if defined(Py_BUILD_CORE)\r |
| 786 | # define DL_IMPORT(RTYPE) __declspec(dllexport) RTYPE\r |
| 787 | # define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE\r |
| 788 | # else\r |
| 789 | # define DL_IMPORT(RTYPE) __declspec(dllimport) RTYPE\r |
| 790 | # define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE\r |
| 791 | # endif\r |
| 792 | #endif\r |
| 793 | #ifndef DL_EXPORT\r |
| 794 | # define DL_EXPORT(RTYPE) RTYPE\r |
| 795 | #endif\r |
| 796 | #ifndef DL_IMPORT\r |
| 797 | # define DL_IMPORT(RTYPE) RTYPE\r |
| 798 | #endif\r |
| 799 | /* End of deprecated DL_* macros */\r |
| 800 | \r |
| 801 | /* If the fd manipulation macros aren't defined,\r |
| 802 | here is a set that should do the job */\r |
| 803 | \r |
| 804 | #if 0 /* disabled and probably obsolete */\r |
| 805 | \r |
| 806 | #ifndef FD_SETSIZE\r |
| 807 | #define FD_SETSIZE 256\r |
| 808 | #endif\r |
| 809 | \r |
| 810 | #ifndef FD_SET\r |
| 811 | \r |
| 812 | typedef long fd_mask;\r |
| 813 | \r |
| 814 | #define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */\r |
| 815 | #ifndef howmany\r |
| 816 | #define howmany(x, y) (((x)+((y)-1))/(y))\r |
| 817 | #endif /* howmany */\r |
| 818 | \r |
| 819 | typedef struct fd_set {\r |
| 820 | fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];\r |
| 821 | } fd_set;\r |
| 822 | \r |
| 823 | #define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))\r |
| 824 | #define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))\r |
| 825 | #define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))\r |
| 826 | #define FD_ZERO(p) memset((char *)(p), '\0', sizeof(*(p)))\r |
| 827 | \r |
| 828 | #endif /* FD_SET */\r |
| 829 | \r |
| 830 | #endif /* fd manipulation macros */\r |
| 831 | \r |
| 832 | \r |
| 833 | /* limits.h constants that may be missing */\r |
| 834 | \r |
| 835 | #ifndef INT_MAX\r |
| 836 | #define INT_MAX 2147483647\r |
| 837 | #endif\r |
| 838 | \r |
| 839 | #ifndef LONG_MAX\r |
| 840 | #if SIZEOF_LONG == 4\r |
| 841 | #define LONG_MAX 0X7FFFFFFFL\r |
| 842 | #elif SIZEOF_LONG == 8\r |
| 843 | #define LONG_MAX 0X7FFFFFFFFFFFFFFFL\r |
| 844 | #else\r |
| 845 | #error "could not set LONG_MAX in pyport.h"\r |
| 846 | #endif\r |
| 847 | #endif\r |
| 848 | \r |
| 849 | #ifndef LONG_MIN\r |
| 850 | #define LONG_MIN (-LONG_MAX-1)\r |
| 851 | #endif\r |
| 852 | \r |
| 853 | #ifndef LONG_BIT\r |
| 854 | #define LONG_BIT (8 * SIZEOF_LONG)\r |
| 855 | #endif\r |
| 856 | \r |
| 857 | #if LONG_BIT != 8 * SIZEOF_LONG\r |
| 858 | /* 04-Oct-2000 LONG_BIT is apparently (mis)defined as 64 on some recent\r |
| 859 | * 32-bit platforms using gcc. We try to catch that here at compile-time\r |
| 860 | * rather than waiting for integer multiplication to trigger bogus\r |
| 861 | * overflows.\r |
| 862 | */\r |
| 863 | #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)."\r |
| 864 | #endif\r |
| 865 | \r |
| 866 | #ifdef __cplusplus\r |
| 867 | }\r |
| 868 | #endif\r |
| 869 | \r |
| 870 | /*\r |
| 871 | * Hide GCC attributes from compilers that don't support them.\r |
| 872 | */\r |
| 873 | #if (!defined(__GNUC__) || __GNUC__ < 2 || \\r |
| 874 | (__GNUC__ == 2 && __GNUC_MINOR__ < 7) ) && \\r |
| 875 | !defined(RISCOS)\r |
| 876 | #define Py_GCC_ATTRIBUTE(x)\r |
| 877 | #else\r |
| 878 | #define Py_GCC_ATTRIBUTE(x) __attribute__(x)\r |
| 879 | #endif\r |
| 880 | \r |
| 881 | /*\r |
| 882 | * Add PyArg_ParseTuple format where available.\r |
| 883 | */\r |
| 884 | #ifdef HAVE_ATTRIBUTE_FORMAT_PARSETUPLE\r |
| 885 | #define Py_FORMAT_PARSETUPLE(func,p1,p2) __attribute__((format(func,p1,p2)))\r |
| 886 | #else\r |
| 887 | #define Py_FORMAT_PARSETUPLE(func,p1,p2)\r |
| 888 | #endif\r |
| 889 | \r |
| 890 | /*\r |
| 891 | * Specify alignment on compilers that support it.\r |
| 892 | */\r |
| 893 | #if defined(__GNUC__) && __GNUC__ >= 3\r |
| 894 | #define Py_ALIGNED(x) __attribute__((aligned(x)))\r |
| 895 | #else\r |
| 896 | #define Py_ALIGNED(x)\r |
| 897 | #endif\r |
| 898 | \r |
| 899 | /* Eliminate end-of-loop code not reached warnings from SunPro C\r |
| 900 | * when using do{...}while(0) macros\r |
| 901 | */\r |
| 902 | #ifdef __SUNPRO_C\r |
| 903 | #pragma error_messages (off,E_END_OF_LOOP_CODE_NOT_REACHED)\r |
| 904 | #endif\r |
| 905 | \r |
| 906 | /*\r |
| 907 | * Older Microsoft compilers don't support the C99 long long literal suffixes,\r |
| 908 | * so these will be defined in PC/pyconfig.h for those compilers.\r |
| 909 | */\r |
| 910 | #ifndef Py_LL\r |
| 911 | #define Py_LL(x) x##LL\r |
| 912 | #endif\r |
| 913 | \r |
| 914 | #ifndef Py_ULL\r |
| 915 | #define Py_ULL(x) Py_LL(x##U)\r |
| 916 | #endif\r |
| 917 | \r |
| 918 | #endif /* Py_PYPORT_H */\r |
projects / mirror_edk2.git / blame