/** @file | |
Symbols and macros to supply platform-independent interfaces to basic | |
C language & library operations whose spellings vary across platforms. | |
Copyright (c) 2011, Intel Corporation. All rights reserved.<BR> | |
This program and the accompanying materials are licensed and made available under | |
the terms and conditions of the BSD License that accompanies this distribution. | |
The full text of the license may be found at | |
http://opensource.org/licenses/bsd-license. | |
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
**/ | |
#ifndef Py_PYPORT_H | |
#define Py_PYPORT_H | |
#include "pyconfig.h" /* include for defines */ | |
/* Some versions of HP-UX & Solaris need inttypes.h for int32_t, | |
INT32_MAX, etc. */ | |
#ifdef HAVE_INTTYPES_H | |
#include <inttypes.h> | |
#endif | |
#ifdef HAVE_STDINT_H | |
#include <stdint.h> | |
#endif | |
/************************************************************************** | |
Symbols and macros to supply platform-independent interfaces to basic | |
C language & library operations whose spellings vary across platforms. | |
Please try to make documentation here as clear as possible: by definition, | |
the stuff here is trying to illuminate C's darkest corners. | |
Config #defines referenced here: | |
SIGNED_RIGHT_SHIFT_ZERO_FILLS | |
Meaning: To be defined iff i>>j does not extend the sign bit when i is a | |
signed integral type and i < 0. | |
Used in: Py_ARITHMETIC_RIGHT_SHIFT | |
Py_DEBUG | |
Meaning: Extra checks compiled in for debug mode. | |
Used in: Py_SAFE_DOWNCAST | |
HAVE_UINTPTR_T | |
Meaning: The C9X type uintptr_t is supported by the compiler | |
Used in: Py_uintptr_t | |
HAVE_LONG_LONG | |
Meaning: The compiler supports the C type "long long" | |
Used in: PY_LONG_LONG | |
**************************************************************************/ | |
/* For backward compatibility only. Obsolete, do not use. */ | |
#ifdef HAVE_PROTOTYPES | |
#define Py_PROTO(x) x | |
#else | |
#define Py_PROTO(x) () | |
#endif | |
#ifndef Py_FPROTO | |
#define Py_FPROTO(x) Py_PROTO(x) | |
#endif | |
/* typedefs for some C9X-defined synonyms for integral types. | |
* | |
* The names in Python are exactly the same as the C9X names, except with a | |
* Py_ prefix. Until C9X is universally implemented, this is the only way | |
* to ensure that Python gets reliable names that don't conflict with names | |
* in non-Python code that are playing their own tricks to define the C9X | |
* names. | |
* | |
* NOTE: don't go nuts here! Python has no use for *most* of the C9X | |
* integral synonyms. Only define the ones we actually need. | |
*/ | |
#ifdef HAVE_LONG_LONG | |
#ifndef PY_LONG_LONG | |
#define PY_LONG_LONG long long | |
#if defined(LLONG_MAX) | |
/* If LLONG_MAX is defined in limits.h, use that. */ | |
#define PY_LLONG_MIN LLONG_MIN | |
#define PY_LLONG_MAX LLONG_MAX | |
#define PY_ULLONG_MAX ULLONG_MAX | |
#elif defined(__LONG_LONG_MAX__) | |
/* Otherwise, if GCC has a builtin define, use that. */ | |
#define PY_LLONG_MAX __LONG_LONG_MAX__ | |
#define PY_LLONG_MIN (-PY_LLONG_MAX-1) | |
#define PY_ULLONG_MAX (__LONG_LONG_MAX__*2ULL + 1ULL) | |
#else | |
/* Otherwise, rely on two's complement. */ | |
#define PY_ULLONG_MAX (~0ULL) | |
#define PY_LLONG_MAX ((long long)(PY_ULLONG_MAX>>1)) | |
#define PY_LLONG_MIN (-PY_LLONG_MAX-1) | |
#endif /* LLONG_MAX */ | |
#endif | |
#endif /* HAVE_LONG_LONG */ | |
/* a build with 30-bit digits for Python long integers needs an exact-width | |
* 32-bit unsigned integer type to store those digits. (We could just use | |
* type 'unsigned long', but that would be wasteful on a system where longs | |
* are 64-bits.) On Unix systems, the autoconf macro AC_TYPE_UINT32_T defines | |
* uint32_t to be such a type unless stdint.h or inttypes.h defines uint32_t. | |
* However, it doesn't set HAVE_UINT32_T, so we do that here. | |
*/ | |
#if (defined UINT32_MAX || defined uint32_t) | |
#ifndef PY_UINT32_T | |
#define HAVE_UINT32_T 1 | |
#define PY_UINT32_T uint32_t | |
#endif | |
#endif | |
/* Macros for a 64-bit unsigned integer type; used for type 'twodigits' in the | |
* long integer implementation, when 30-bit digits are enabled. | |
*/ | |
#if (defined UINT64_MAX || defined uint64_t) | |
#ifndef PY_UINT64_T | |
#define HAVE_UINT64_T 1 | |
#define PY_UINT64_T uint64_t | |
#endif | |
#endif | |
/* Signed variants of the above */ | |
#if (defined INT32_MAX || defined int32_t) | |
#ifndef PY_INT32_T | |
#define HAVE_INT32_T 1 | |
#define PY_INT32_T int32_t | |
#endif | |
#endif | |
#if (defined INT64_MAX || defined int64_t) | |
#ifndef PY_INT64_T | |
#define HAVE_INT64_T 1 | |
#define PY_INT64_T int64_t | |
#endif | |
#endif | |
/* If PYLONG_BITS_IN_DIGIT is not defined then we'll use 30-bit digits if all | |
the necessary integer types are available, and we're on a 64-bit platform | |
(as determined by SIZEOF_VOID_P); otherwise we use 15-bit digits. */ | |
#ifndef PYLONG_BITS_IN_DIGIT | |
#if (defined HAVE_UINT64_T && defined HAVE_INT64_T && \ | |
defined HAVE_UINT32_T && defined HAVE_INT32_T && SIZEOF_VOID_P >= 8) | |
#define PYLONG_BITS_IN_DIGIT 30 | |
#else | |
#define PYLONG_BITS_IN_DIGIT 15 | |
#endif | |
#endif | |
/* uintptr_t is the C9X name for an unsigned integral type such that a | |
* legitimate void* can be cast to uintptr_t and then back to void* again | |
* without loss of information. Similarly for intptr_t, wrt a signed | |
* integral type. | |
*/ | |
#ifdef HAVE_UINTPTR_T | |
typedef uintptr_t Py_uintptr_t; | |
typedef intptr_t Py_intptr_t; | |
#elif SIZEOF_VOID_P <= SIZEOF_INT | |
typedef unsigned int Py_uintptr_t; | |
typedef int Py_intptr_t; | |
#elif SIZEOF_VOID_P <= SIZEOF_LONG | |
typedef unsigned long Py_uintptr_t; | |
typedef long Py_intptr_t; | |
#elif defined(HAVE_LONG_LONG) && (SIZEOF_VOID_P <= SIZEOF_LONG_LONG) | |
typedef unsigned PY_LONG_LONG Py_uintptr_t; | |
typedef PY_LONG_LONG Py_intptr_t; | |
#else | |
# error "Python needs a typedef for Py_uintptr_t in pyport.h." | |
#endif /* HAVE_UINTPTR_T */ | |
/* Py_ssize_t is a signed integral type such that sizeof(Py_ssize_t) == | |
* sizeof(size_t). C99 doesn't define such a thing directly (size_t is an | |
* unsigned integral type). See PEP 353 for details. | |
*/ | |
#ifdef HAVE_SSIZE_T | |
typedef ssize_t Py_ssize_t; | |
#elif SIZEOF_VOID_P == SIZEOF_SIZE_T | |
typedef Py_intptr_t Py_ssize_t; | |
#else | |
# error "Python needs a typedef for Py_ssize_t in pyport.h." | |
#endif | |
/* Largest possible value of size_t. | |
SIZE_MAX is part of C99, so it might be defined on some | |
platforms. If it is not defined, (size_t)-1 is a portable | |
definition for C89, due to the way signed->unsigned | |
conversion is defined. */ | |
#ifdef SIZE_MAX | |
#define PY_SIZE_MAX SIZE_MAX | |
#else | |
#define PY_SIZE_MAX ((size_t)-1) | |
#endif | |
/* Largest positive value of type Py_ssize_t. */ | |
#define PY_SSIZE_T_MAX ((Py_ssize_t)(((size_t)-1)>>1)) | |
/* Smallest negative value of type Py_ssize_t. */ | |
#define PY_SSIZE_T_MIN (-PY_SSIZE_T_MAX-1) | |
#if SIZEOF_PID_T > SIZEOF_LONG | |
# error "Python doesn't support sizeof(pid_t) > sizeof(long)" | |
#endif | |
/* PY_FORMAT_SIZE_T is a platform-specific modifier for use in a printf | |
* format to convert an argument with the width of a size_t or Py_ssize_t. | |
* C99 introduced "z" for this purpose, but not all platforms support that; | |
* e.g., MS compilers use "I" instead. | |
* | |
* These "high level" Python format functions interpret "z" correctly on | |
* all platforms (Python interprets the format string itself, and does whatever | |
* the platform C requires to convert a size_t/Py_ssize_t argument): | |
* | |
* PyString_FromFormat | |
* PyErr_Format | |
* PyString_FromFormatV | |
* | |
* Lower-level uses require that you interpolate the correct format modifier | |
* yourself (e.g., calling printf, fprintf, sprintf, PyOS_snprintf); for | |
* example, | |
* | |
* Py_ssize_t index; | |
* fprintf(stderr, "index %" PY_FORMAT_SIZE_T "d sucks\n", index); | |
* | |
* That will expand to %ld, or %Id, or to something else correct for a | |
* Py_ssize_t on the platform. | |
*/ | |
#ifndef PY_FORMAT_SIZE_T | |
# if SIZEOF_SIZE_T == SIZEOF_INT && !defined(__APPLE__) | |
# define PY_FORMAT_SIZE_T "" | |
# elif SIZEOF_SIZE_T == SIZEOF_LONG | |
# define PY_FORMAT_SIZE_T "l" | |
# elif defined(MS_WINDOWS) | |
# define PY_FORMAT_SIZE_T "I" | |
# else | |
# error "This platform's pyconfig.h needs to define PY_FORMAT_SIZE_T" | |
# endif | |
#endif | |
/* PY_FORMAT_LONG_LONG is analogous to PY_FORMAT_SIZE_T above, but for | |
* the long long type instead of the size_t type. It's only available | |
* when HAVE_LONG_LONG is defined. The "high level" Python format | |
* functions listed above will interpret "lld" or "llu" correctly on | |
* all platforms. | |
*/ | |
#ifdef HAVE_LONG_LONG | |
# ifndef PY_FORMAT_LONG_LONG | |
# if defined(MS_WIN64) || defined(MS_WINDOWS) | |
# define PY_FORMAT_LONG_LONG "I64" | |
# else | |
# error "This platform's pyconfig.h needs to define PY_FORMAT_LONG_LONG" | |
# endif | |
# endif | |
#endif | |
/* Py_LOCAL can be used instead of static to get the fastest possible calling | |
* convention for functions that are local to a given module. | |
* | |
* Py_LOCAL_INLINE does the same thing, and also explicitly requests inlining, | |
* for platforms that support that. | |
* | |
* If PY_LOCAL_AGGRESSIVE is defined before python.h is included, more | |
* "aggressive" inlining/optimizaion is enabled for the entire module. This | |
* may lead to code bloat, and may slow things down for those reasons. It may | |
* also lead to errors, if the code relies on pointer aliasing. Use with | |
* care. | |
* | |
* NOTE: You can only use this for functions that are entirely local to a | |
* module; functions that are exported via method tables, callbacks, etc, | |
* should keep using static. | |
*/ | |
#undef USE_INLINE /* XXX - set via configure? */ | |
#if defined(_MSC_VER) | |
#if defined(PY_LOCAL_AGGRESSIVE) | |
/* enable more aggressive optimization for visual studio */ | |
//#pragma optimize("agtw", on) | |
#pragma optimize("gt", on) // a and w are not legal for VS2005 | |
#endif | |
/* ignore warnings if the compiler decides not to inline a function */ | |
#pragma warning(disable: 4710) | |
/* fastest possible local call under MSVC */ | |
#define Py_LOCAL(type) static type __fastcall | |
#define Py_LOCAL_INLINE(type) static __inline type __fastcall | |
#elif defined(USE_INLINE) | |
#define Py_LOCAL(type) static type | |
#define Py_LOCAL_INLINE(type) static inline type | |
#else | |
#define Py_LOCAL(type) static type | |
#define Py_LOCAL_INLINE(type) static type | |
#endif | |
/* Py_MEMCPY can be used instead of memcpy in cases where the copied blocks | |
* are often very short. While most platforms have highly optimized code for | |
* large transfers, the setup costs for memcpy are often quite high. MEMCPY | |
* solves this by doing short copies "in line". | |
*/ | |
#if defined(_MSC_VER) | |
#define Py_MEMCPY(target, source, length) do { \ | |
size_t i_, n_ = (length); \ | |
char *t_ = (void*) (target); \ | |
const char *s_ = (void*) (source); \ | |
if (n_ >= 16) \ | |
memcpy(t_, s_, n_); \ | |
else \ | |
for (i_ = 0; i_ < n_; i_++) \ | |
t_[i_] = s_[i_]; \ | |
} while (0) | |
#else | |
#define Py_MEMCPY memcpy | |
#endif | |
#include <stdlib.h> | |
#ifdef HAVE_IEEEFP_H | |
#include <ieeefp.h> /* needed for 'finite' declaration on some platforms */ | |
#endif | |
#include <math.h> /* Moved here from the math section, before extern "C" */ | |
/******************************************** | |
* WRAPPER FOR <time.h> and/or <sys/time.h> * | |
********************************************/ | |
#ifdef TIME_WITH_SYS_TIME | |
#include <sys/time.h> | |
#include <time.h> | |
#else /* !TIME_WITH_SYS_TIME */ | |
#ifdef HAVE_SYS_TIME_H | |
#include <sys/time.h> | |
#else /* !HAVE_SYS_TIME_H */ | |
#include <time.h> | |
#endif /* !HAVE_SYS_TIME_H */ | |
#endif /* !TIME_WITH_SYS_TIME */ | |
/****************************** | |
* WRAPPER FOR <sys/select.h> * | |
******************************/ | |
/* NB caller must include <sys/types.h> */ | |
#ifdef HAVE_SYS_SELECT_H | |
#include <sys/select.h> | |
#endif /* !HAVE_SYS_SELECT_H */ | |
/******************************* | |
* stat() and fstat() fiddling * | |
*******************************/ | |
/* We expect that stat and fstat exist on most systems. | |
* It's confirmed on Unix, Mac and Windows. | |
* If you don't have them, add | |
* #define DONT_HAVE_STAT | |
* and/or | |
* #define DONT_HAVE_FSTAT | |
* to your pyconfig.h. Python code beyond this should check HAVE_STAT and | |
* HAVE_FSTAT instead. | |
* Also | |
* #define HAVE_SYS_STAT_H | |
* if <sys/stat.h> exists on your platform, and | |
* #define HAVE_STAT_H | |
* if <stat.h> does. | |
*/ | |
#ifndef DONT_HAVE_STAT | |
#define HAVE_STAT | |
#endif | |
#ifndef DONT_HAVE_FSTAT | |
#define HAVE_FSTAT | |
#endif | |
#ifdef RISCOS | |
#include <sys/types.h> | |
#include "unixstuff.h" | |
#endif | |
#ifdef HAVE_SYS_STAT_H | |
#if defined(PYOS_OS2) && defined(PYCC_GCC) | |
#include <sys/types.h> | |
#endif | |
#include <sys/stat.h> | |
#elif defined(HAVE_STAT_H) | |
#include <stat.h> | |
#endif | |
#if defined(PYCC_VACPP) | |
/* VisualAge C/C++ Failed to Define MountType Field in sys/stat.h */ | |
#define S_IFMT (S_IFDIR|S_IFCHR|S_IFREG) | |
#endif | |
#ifndef S_ISREG | |
#define S_ISREG(x) (((x) & S_IFMT) == S_IFREG) | |
#endif | |
#ifndef S_ISDIR | |
#define S_ISDIR(x) (((x) & S_IFMT) == S_IFDIR) | |
#endif | |
#ifdef __cplusplus | |
/* Move this down here since some C++ #include's don't like to be included | |
inside an extern "C" */ | |
extern "C" { | |
#endif | |
/* Py_ARITHMETIC_RIGHT_SHIFT | |
* C doesn't define whether a right-shift of a signed integer sign-extends | |
* or zero-fills. Here a macro to force sign extension: | |
* Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) | |
* Return I >> J, forcing sign extension. Arithmetically, return the | |
* floor of I/2**J. | |
* Requirements: | |
* I should have signed integer type. In the terminology of C99, this can | |
* be either one of the five standard signed integer types (signed char, | |
* short, int, long, long long) or an extended signed integer type. | |
* J is an integer >= 0 and strictly less than the number of bits in the | |
* type of I (because C doesn't define what happens for J outside that | |
* range either). | |
* TYPE used to specify the type of I, but is now ignored. It's been left | |
* in for backwards compatibility with versions <= 2.6 or 3.0. | |
* Caution: | |
* I may be evaluated more than once. | |
*/ | |
#ifdef SIGNED_RIGHT_SHIFT_ZERO_FILLS | |
#define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) \ | |
((I) < 0 ? -1-((-1-(I)) >> (J)) : (I) >> (J)) | |
#else | |
#define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) ((I) >> (J)) | |
#endif | |
/* Py_FORCE_EXPANSION(X) | |
* "Simply" returns its argument. However, macro expansions within the | |
* argument are evaluated. This unfortunate trickery is needed to get | |
* token-pasting to work as desired in some cases. | |
*/ | |
#define Py_FORCE_EXPANSION(X) X | |
/* Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) | |
* Cast VALUE to type NARROW from type WIDE. In Py_DEBUG mode, this | |
* assert-fails if any information is lost. | |
* Caution: | |
* VALUE may be evaluated more than once. | |
*/ | |
#ifdef Py_DEBUG | |
#define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) \ | |
(assert((WIDE)(NARROW)(VALUE) == (VALUE)), (NARROW)(VALUE)) | |
#else | |
#define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) (NARROW)(VALUE) | |
#endif | |
/* Py_SET_ERRNO_ON_MATH_ERROR(x) | |
* If a libm function did not set errno, but it looks like the result | |
* overflowed or not-a-number, set errno to ERANGE or EDOM. Set errno | |
* to 0 before calling a libm function, and invoke this macro after, | |
* passing the function result. | |
* Caution: | |
* This isn't reliable. See Py_OVERFLOWED comments. | |
* X is evaluated more than once. | |
*/ | |
#if defined(__FreeBSD__) || defined(__OpenBSD__) || (defined(__hpux) && defined(__ia64)) | |
#define _Py_SET_EDOM_FOR_NAN(X) if (isnan(X)) errno = EDOM; | |
#else | |
#define _Py_SET_EDOM_FOR_NAN(X) ; | |
#endif | |
#define Py_SET_ERRNO_ON_MATH_ERROR(X) \ | |
do { \ | |
if (errno == 0) { \ | |
if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL) \ | |
errno = ERANGE; \ | |
else _Py_SET_EDOM_FOR_NAN(X) \ | |
} \ | |
} while(0) | |
/* Py_SET_ERANGE_ON_OVERFLOW(x) | |
* An alias of Py_SET_ERRNO_ON_MATH_ERROR for backward-compatibility. | |
*/ | |
#define Py_SET_ERANGE_IF_OVERFLOW(X) Py_SET_ERRNO_ON_MATH_ERROR(X) | |
/* Py_ADJUST_ERANGE1(x) | |
* Py_ADJUST_ERANGE2(x, y) | |
* Set errno to 0 before calling a libm function, and invoke one of these | |
* macros after, passing the function result(s) (Py_ADJUST_ERANGE2 is useful | |
* for functions returning complex results). This makes two kinds of | |
* adjustments to errno: (A) If it looks like the platform libm set | |
* errno=ERANGE due to underflow, clear errno. (B) If it looks like the | |
* platform libm overflowed but didn't set errno, force errno to ERANGE. In | |
* effect, we're trying to force a useful implementation of C89 errno | |
* behavior. | |
* Caution: | |
* This isn't reliable. See Py_OVERFLOWED comments. | |
* X and Y may be evaluated more than once. | |
*/ | |
#define Py_ADJUST_ERANGE1(X) \ | |
do { \ | |
if (errno == 0) { \ | |
if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL) \ | |
errno = ERANGE; \ | |
} \ | |
else if (errno == ERANGE && (X) == 0.0) \ | |
errno = 0; \ | |
} while(0) | |
#define Py_ADJUST_ERANGE2(X, Y) \ | |
do { \ | |
if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL || \ | |
(Y) == Py_HUGE_VAL || (Y) == -Py_HUGE_VAL) { \ | |
if (errno == 0) \ | |
errno = ERANGE; \ | |
} \ | |
else if (errno == ERANGE) \ | |
errno = 0; \ | |
} while(0) | |
/* The functions _Py_dg_strtod and _Py_dg_dtoa in Python/dtoa.c (which are | |
* required to support the short float repr introduced in Python 3.1) require | |
* that the floating-point unit that's being used for arithmetic operations | |
* on C doubles is set to use 53-bit precision. It also requires that the | |
* FPU rounding mode is round-half-to-even, but that's less often an issue. | |
* | |
* If your FPU isn't already set to 53-bit precision/round-half-to-even, and | |
* you want to make use of _Py_dg_strtod and _Py_dg_dtoa, then you should | |
* | |
* #define HAVE_PY_SET_53BIT_PRECISION 1 | |
* | |
* and also give appropriate definitions for the following three macros: | |
* | |
* _PY_SET_53BIT_PRECISION_START : store original FPU settings, and | |
* set FPU to 53-bit precision/round-half-to-even | |
* _PY_SET_53BIT_PRECISION_END : restore original FPU settings | |
* _PY_SET_53BIT_PRECISION_HEADER : any variable declarations needed to | |
* use the two macros above. | |
* | |
* The macros are designed to be used within a single C function: see | |
* Python/pystrtod.c for an example of their use. | |
*/ | |
/* get and set x87 control word for gcc/x86 */ | |
#ifdef HAVE_GCC_ASM_FOR_X87 | |
#define HAVE_PY_SET_53BIT_PRECISION 1 | |
/* _Py_get/set_387controlword functions are defined in Python/pymath.c */ | |
#define _Py_SET_53BIT_PRECISION_HEADER \ | |
unsigned short old_387controlword, new_387controlword | |
#define _Py_SET_53BIT_PRECISION_START \ | |
do { \ | |
old_387controlword = _Py_get_387controlword(); \ | |
new_387controlword = (old_387controlword & ~0x0f00) | 0x0200; \ | |
if (new_387controlword != old_387controlword) \ | |
_Py_set_387controlword(new_387controlword); \ | |
} while (0) | |
#define _Py_SET_53BIT_PRECISION_END \ | |
if (new_387controlword != old_387controlword) \ | |
_Py_set_387controlword(old_387controlword) | |
#endif | |
/* default definitions are empty */ | |
#ifndef HAVE_PY_SET_53BIT_PRECISION | |
#define _Py_SET_53BIT_PRECISION_HEADER | |
#define _Py_SET_53BIT_PRECISION_START | |
#define _Py_SET_53BIT_PRECISION_END | |
#endif | |
/* If we can't guarantee 53-bit precision, don't use the code | |
in Python/dtoa.c, but fall back to standard code. This | |
means that repr of a float will be long (17 sig digits). | |
Realistically, there are two things that could go wrong: | |
(1) doubles aren't IEEE 754 doubles, or | |
(2) we're on x86 with the rounding precision set to 64-bits | |
(extended precision), and we don't know how to change | |
the rounding precision. | |
*/ | |
#if !defined(DOUBLE_IS_LITTLE_ENDIAN_IEEE754) && \ | |
!defined(DOUBLE_IS_BIG_ENDIAN_IEEE754) && \ | |
!defined(DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754) | |
#define PY_NO_SHORT_FLOAT_REPR | |
#endif | |
/* double rounding is symptomatic of use of extended precision on x86. If | |
we're seeing double rounding, and we don't have any mechanism available for | |
changing the FPU rounding precision, then don't use Python/dtoa.c. */ | |
#if defined(X87_DOUBLE_ROUNDING) && !defined(HAVE_PY_SET_53BIT_PRECISION) | |
#define PY_NO_SHORT_FLOAT_REPR | |
#endif | |
/* Py_DEPRECATED(version) | |
* Declare a variable, type, or function deprecated. | |
* Usage: | |
* extern int old_var Py_DEPRECATED(2.3); | |
* typedef int T1 Py_DEPRECATED(2.4); | |
* extern int x() Py_DEPRECATED(2.5); | |
*/ | |
#if defined(__GNUC__) && ((__GNUC__ >= 4) || \ | |
(__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)) | |
#define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__)) | |
#else | |
#define Py_DEPRECATED(VERSION_UNUSED) | |
#endif | |
/************************************************************************** | |
Prototypes that are missing from the standard include files on some systems | |
(and possibly only some versions of such systems.) | |
Please be conservative with adding new ones, document them and enclose them | |
in platform-specific #ifdefs. | |
**************************************************************************/ | |
#ifdef SOLARIS | |
/* Unchecked */ | |
extern int gethostname(char *, int); | |
#endif | |
#ifdef __BEOS__ | |
/* Unchecked */ | |
/* It's in the libs, but not the headers... - [cjh] */ | |
int shutdown( int, int ); | |
#endif | |
#ifdef HAVE__GETPTY | |
#include <sys/types.h> /* we need to import mode_t */ | |
extern char * _getpty(int *, int, mode_t, int); | |
#endif | |
/* On QNX 6, struct termio must be declared by including sys/termio.h | |
if TCGETA, TCSETA, TCSETAW, or TCSETAF are used. sys/termio.h must | |
be included before termios.h or it will generate an error. */ | |
#ifdef HAVE_SYS_TERMIO_H | |
#include <sys/termio.h> | |
#endif | |
#if defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY) | |
#if !defined(HAVE_PTY_H) && !defined(HAVE_LIBUTIL_H) && !defined(HAVE_UTIL_H) | |
/* BSDI does not supply a prototype for the 'openpty' and 'forkpty' | |
functions, even though they are included in libutil. */ | |
#include <termios.h> | |
extern int openpty(int *, int *, char *, struct termios *, struct winsize *); | |
extern pid_t forkpty(int *, char *, struct termios *, struct winsize *); | |
#endif /* !defined(HAVE_PTY_H) && !defined(HAVE_LIBUTIL_H) */ | |
#endif /* defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY) */ | |
/* These are pulled from various places. It isn't obvious on what platforms | |
they are necessary, nor what the exact prototype should look like (which | |
is likely to vary between platforms!) If you find you need one of these | |
declarations, please move them to a platform-specific block and include | |
proper prototypes. */ | |
#if 0 | |
/* From Modules/resource.c */ | |
extern int getrusage(); | |
extern int getpagesize(); | |
/* From Python/sysmodule.c and Modules/posixmodule.c */ | |
extern int fclose(FILE *); | |
/* From Modules/posixmodule.c */ | |
extern int fdatasync(int); | |
#endif /* 0 */ | |
/* On 4.4BSD-descendants, ctype functions serves the whole range of | |
* wchar_t character set rather than single byte code points only. | |
* This characteristic can break some operations of string object | |
* including str.upper() and str.split() on UTF-8 locales. This | |
* workaround was provided by Tim Robbins of FreeBSD project. | |
*/ | |
#ifdef __FreeBSD__ | |
#include <osreldate.h> | |
#if __FreeBSD_version > 500039 | |
# define _PY_PORT_CTYPE_UTF8_ISSUE | |
#endif | |
#endif | |
#if defined(__APPLE__) | |
# define _PY_PORT_CTYPE_UTF8_ISSUE | |
#endif | |
#ifdef _PY_PORT_CTYPE_UTF8_ISSUE | |
#include <ctype.h> | |
#include <wctype.h> | |
#undef isalnum | |
#define isalnum(c) iswalnum(btowc(c)) | |
#undef isalpha | |
#define isalpha(c) iswalpha(btowc(c)) | |
#undef islower | |
#define islower(c) iswlower(btowc(c)) | |
#undef isspace | |
#define isspace(c) iswspace(btowc(c)) | |
#undef isupper | |
#define isupper(c) iswupper(btowc(c)) | |
#undef tolower | |
#define tolower(c) towlower(btowc(c)) | |
#undef toupper | |
#define toupper(c) towupper(btowc(c)) | |
#endif | |
/* Declarations for symbol visibility. | |
PyAPI_FUNC(type): Declares a public Python API function and return type | |
PyAPI_DATA(type): Declares public Python data and its type | |
PyMODINIT_FUNC: A Python module init function. If these functions are | |
inside the Python core, they are private to the core. | |
If in an extension module, it may be declared with | |
external linkage depending on the platform. | |
As a number of platforms support/require "__declspec(dllimport/dllexport)", | |
we support a HAVE_DECLSPEC_DLL macro to save duplication. | |
*/ | |
/* | |
All windows ports, except cygwin, are handled in PC/pyconfig.h. | |
BeOS and cygwin are the only other autoconf platform requiring special | |
linkage handling and both of these use __declspec(). | |
*/ | |
#if defined(__CYGWIN__) || defined(__BEOS__) | |
# define HAVE_DECLSPEC_DLL | |
#endif | |
/* only get special linkage if built as shared or platform is Cygwin */ | |
#if defined(Py_ENABLE_SHARED) || defined(__CYGWIN__) | |
# if defined(HAVE_DECLSPEC_DLL) | |
# ifdef Py_BUILD_CORE | |
# define PyAPI_FUNC(RTYPE) __declspec(dllexport) RTYPE | |
# define PyAPI_DATA(RTYPE) extern __declspec(dllexport) RTYPE | |
/* module init functions inside the core need no external linkage */ | |
/* except for Cygwin to handle embedding (FIXME: BeOS too?) */ | |
# if defined(__CYGWIN__) | |
# define PyMODINIT_FUNC __declspec(dllexport) void | |
# else /* __CYGWIN__ */ | |
# define PyMODINIT_FUNC void | |
# endif /* __CYGWIN__ */ | |
# else /* Py_BUILD_CORE */ | |
/* Building an extension module, or an embedded situation */ | |
/* public Python functions and data are imported */ | |
/* Under Cygwin, auto-import functions to prevent compilation */ | |
/* failures similar to those described at the bottom of 4.1: */ | |
/* http://docs.python.org/extending/windows.html#a-cookbook-approach */ | |
# if !defined(__CYGWIN__) | |
# define PyAPI_FUNC(RTYPE) __declspec(dllimport) RTYPE | |
# endif /* !__CYGWIN__ */ | |
# define PyAPI_DATA(RTYPE) extern __declspec(dllimport) RTYPE | |
/* module init functions outside the core must be exported */ | |
# if defined(__cplusplus) | |
# define PyMODINIT_FUNC extern "C" __declspec(dllexport) void | |
# else /* __cplusplus */ | |
# define PyMODINIT_FUNC __declspec(dllexport) void | |
# endif /* __cplusplus */ | |
# endif /* Py_BUILD_CORE */ | |
# endif /* HAVE_DECLSPEC */ | |
#endif /* Py_ENABLE_SHARED */ | |
/* If no external linkage macros defined by now, create defaults */ | |
#ifndef PyAPI_FUNC | |
# define PyAPI_FUNC(RTYPE) RTYPE | |
#endif | |
#ifndef PyAPI_DATA | |
# define PyAPI_DATA(RTYPE) extern RTYPE | |
#endif | |
#ifndef PyMODINIT_FUNC | |
# if defined(__cplusplus) | |
# define PyMODINIT_FUNC extern "C" void | |
# else /* __cplusplus */ | |
# define PyMODINIT_FUNC void | |
# endif /* __cplusplus */ | |
#endif | |
/* Deprecated DL_IMPORT and DL_EXPORT macros */ | |
#if defined(Py_ENABLE_SHARED) && defined (HAVE_DECLSPEC_DLL) | |
# if defined(Py_BUILD_CORE) | |
# define DL_IMPORT(RTYPE) __declspec(dllexport) RTYPE | |
# define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE | |
# else | |
# define DL_IMPORT(RTYPE) __declspec(dllimport) RTYPE | |
# define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE | |
# endif | |
#endif | |
#ifndef DL_EXPORT | |
# define DL_EXPORT(RTYPE) RTYPE | |
#endif | |
#ifndef DL_IMPORT | |
# define DL_IMPORT(RTYPE) RTYPE | |
#endif | |
/* End of deprecated DL_* macros */ | |
/* If the fd manipulation macros aren't defined, | |
here is a set that should do the job */ | |
#if 0 /* disabled and probably obsolete */ | |
#ifndef FD_SETSIZE | |
#define FD_SETSIZE 256 | |
#endif | |
#ifndef FD_SET | |
typedef long fd_mask; | |
#define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */ | |
#ifndef howmany | |
#define howmany(x, y) (((x)+((y)-1))/(y)) | |
#endif /* howmany */ | |
typedef struct fd_set { | |
fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)]; | |
} fd_set; | |
#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS))) | |
#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS))) | |
#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS))) | |
#define FD_ZERO(p) memset((char *)(p), '\0', sizeof(*(p))) | |
#endif /* FD_SET */ | |
#endif /* fd manipulation macros */ | |
/* limits.h constants that may be missing */ | |
#ifndef INT_MAX | |
#define INT_MAX 2147483647 | |
#endif | |
#ifndef LONG_MAX | |
#if SIZEOF_LONG == 4 | |
#define LONG_MAX 0X7FFFFFFFL | |
#elif SIZEOF_LONG == 8 | |
#define LONG_MAX 0X7FFFFFFFFFFFFFFFL | |
#else | |
#error "could not set LONG_MAX in pyport.h" | |
#endif | |
#endif | |
#ifndef LONG_MIN | |
#define LONG_MIN (-LONG_MAX-1) | |
#endif | |
#ifndef LONG_BIT | |
#define LONG_BIT (8 * SIZEOF_LONG) | |
#endif | |
#if LONG_BIT != 8 * SIZEOF_LONG | |
/* 04-Oct-2000 LONG_BIT is apparently (mis)defined as 64 on some recent | |
* 32-bit platforms using gcc. We try to catch that here at compile-time | |
* rather than waiting for integer multiplication to trigger bogus | |
* overflows. | |
*/ | |
#error "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)." | |
#endif | |
#ifdef __cplusplus | |
} | |
#endif | |
/* | |
* Hide GCC attributes from compilers that don't support them. | |
*/ | |
#if (!defined(__GNUC__) || __GNUC__ < 2 || \ | |
(__GNUC__ == 2 && __GNUC_MINOR__ < 7) ) && \ | |
!defined(RISCOS) | |
#define Py_GCC_ATTRIBUTE(x) | |
#else | |
#define Py_GCC_ATTRIBUTE(x) __attribute__(x) | |
#endif | |
/* | |
* Add PyArg_ParseTuple format where available. | |
*/ | |
#ifdef HAVE_ATTRIBUTE_FORMAT_PARSETUPLE | |
#define Py_FORMAT_PARSETUPLE(func,p1,p2) __attribute__((format(func,p1,p2))) | |
#else | |
#define Py_FORMAT_PARSETUPLE(func,p1,p2) | |
#endif | |
/* | |
* Specify alignment on compilers that support it. | |
*/ | |
#if defined(__GNUC__) && __GNUC__ >= 3 | |
#define Py_ALIGNED(x) __attribute__((aligned(x))) | |
#else | |
#define Py_ALIGNED(x) | |
#endif | |
/* Eliminate end-of-loop code not reached warnings from SunPro C | |
* when using do{...}while(0) macros | |
*/ | |
#ifdef __SUNPRO_C | |
#pragma error_messages (off,E_END_OF_LOOP_CODE_NOT_REACHED) | |
#endif | |
/* | |
* Older Microsoft compilers don't support the C99 long long literal suffixes, | |
* so these will be defined in PC/pyconfig.h for those compilers. | |
*/ | |
#ifndef Py_LL | |
#define Py_LL(x) x##LL | |
#endif | |
#ifndef Py_ULL | |
#define Py_ULL(x) Py_LL(x##U) | |
#endif | |
#endif /* Py_PYPORT_H */ |