diff CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/python3.8/pyport.h @ 69:33d812a61356

planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
parents
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/python3.8/pyport.h	Tue Mar 18 17:55:14 2025 -0400
@@ -0,0 +1,850 @@
+#ifndef Py_PYPORT_H
+#define Py_PYPORT_H
+
+#include "pyconfig.h" /* include for defines */
+
+#include <inttypes.h>
+
+
+/* Defines to build Python and its standard library:
+ *
+ * - Py_BUILD_CORE: Build Python core. Give access to Python internals, but
+ *   should not be used by third-party modules.
+ * - Py_BUILD_CORE_BUILTIN: Build a Python stdlib module as a built-in module.
+ * - Py_BUILD_CORE_MODULE: Build a Python stdlib module as a dynamic library.
+ *
+ * Py_BUILD_CORE_BUILTIN and Py_BUILD_CORE_MODULE imply Py_BUILD_CORE.
+ *
+ * On Windows, Py_BUILD_CORE_MODULE exports "PyInit_xxx" symbol, whereas
+ * Py_BUILD_CORE_BUILTIN does not.
+ */
+#if defined(Py_BUILD_CORE_BUILTIN) && !defined(Py_BUILD_CORE)
+#  define Py_BUILD_CORE
+#endif
+#if defined(Py_BUILD_CORE_MODULE) && !defined(Py_BUILD_CORE)
+#  define Py_BUILD_CORE
+#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
+
+**************************************************************************/
+
+/* 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.
+ */
+
+/* long long is required. Ensure HAVE_LONG_LONG is defined for compatibility. */
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG 1
+#endif
+#ifndef PY_LONG_LONG
+#define PY_LONG_LONG long long
+/* 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
+#endif
+
+#define PY_UINT32_T uint32_t
+#define PY_UINT64_T uint64_t
+
+/* Signed variants of the above */
+#define PY_INT32_T int32_t
+#define PY_INT64_T int64_t
+
+/* 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 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.
+ */
+typedef uintptr_t       Py_uintptr_t;
+typedef intptr_t        Py_intptr_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
+
+/* Py_hash_t is the same size as a pointer. */
+#define SIZEOF_PY_HASH_T SIZEOF_SIZE_T
+typedef Py_ssize_t Py_hash_t;
+/* Py_uhash_t is the unsigned equivalent needed to calculate numeric hash. */
+#define SIZEOF_PY_UHASH_T SIZEOF_SIZE_T
+typedef size_t Py_uhash_t;
+
+/* Only used for compatibility with code that may not be PY_SSIZE_T_CLEAN. */
+#ifdef PY_SSIZE_T_CLEAN
+typedef Py_ssize_t Py_ssize_clean_t;
+#else
+typedef int Py_ssize_clean_t;
+#endif
+
+/* Largest possible value of size_t. */
+#define PY_SIZE_MAX SIZE_MAX
+
+/* 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)
+
+/* 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):
+ *
+ *     PyBytes_FromFormat
+ *     PyErr_Format
+ *     PyBytes_FromFormatV
+ *     PyUnicode_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_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/optimization 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.
+ */
+
+#if defined(_MSC_VER)
+#  if defined(PY_LOCAL_AGGRESSIVE)
+   /* enable more aggressive optimization for visual studio */
+#  pragma optimize("agtw", on)
+#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
+#else
+#  define Py_LOCAL(type) static type
+#  define Py_LOCAL_INLINE(type) static inline type
+#endif
+
+/* Py_MEMCPY is kept for backwards compatibility,
+ * see https://bugs.python.org/issue28126 */
+#define Py_MEMCPY memcpy
+
+#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 *
+ *******************************/
+
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#elif defined(HAVE_STAT_H)
+#include <stat.h>
+#endif
+
+#ifndef S_IFMT
+/* VisualAge C/C++ Failed to Define MountType Field in sys/stat.h */
+#define S_IFMT 0170000
+#endif
+
+#ifndef S_IFLNK
+/* Windows doesn't define S_IFLNK but posixmodule.c maps
+ * IO_REPARSE_TAG_SYMLINK to S_IFLNK */
+#  define S_IFLNK 0120000
+#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
+
+#ifndef S_ISCHR
+#define S_ISCHR(x) (((x) & S_IFMT) == S_IFCHR)
+#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_IF_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
+
+/* get and set x87 control word for VisualStudio/x86 */
+#if defined(_MSC_VER) && !defined(_WIN64) && !defined(_M_ARM) /* x87 not supported in 64-bit or ARM */
+#define HAVE_PY_SET_53BIT_PRECISION 1
+#define _Py_SET_53BIT_PRECISION_HEADER \
+    unsigned int old_387controlword, new_387controlword, out_387controlword
+/* We use the __control87_2 function to set only the x87 control word.
+   The SSE control word is unaffected. */
+#define _Py_SET_53BIT_PRECISION_START                                   \
+    do {                                                                \
+        __control87_2(0, 0, &old_387controlword, NULL);                 \
+        new_387controlword =                                            \
+          (old_387controlword & ~(_MCW_PC | _MCW_RC)) | (_PC_53 | _RC_NEAR); \
+        if (new_387controlword != old_387controlword)                   \
+            __control87_2(new_387controlword, _MCW_PC | _MCW_RC,        \
+                          &out_387controlword, NULL);                   \
+    } while (0)
+#define _Py_SET_53BIT_PRECISION_END                                     \
+    do {                                                                \
+        if (new_387controlword != old_387controlword)                   \
+            __control87_2(old_387controlword, _MCW_PC | _MCW_RC,        \
+                          &out_387controlword, NULL);                   \
+    } while (0)
+#endif
+
+#ifdef HAVE_GCC_ASM_FOR_MC68881
+#define HAVE_PY_SET_53BIT_PRECISION 1
+#define _Py_SET_53BIT_PRECISION_HEADER \
+  unsigned int old_fpcr, new_fpcr
+#define _Py_SET_53BIT_PRECISION_START                                   \
+  do {                                                                  \
+    __asm__ ("fmove.l %%fpcr,%0" : "=g" (old_fpcr));                    \
+    /* Set double precision / round to nearest.  */                     \
+    new_fpcr = (old_fpcr & ~0xf0) | 0x80;                               \
+    if (new_fpcr != old_fpcr)                                           \
+      __asm__ volatile ("fmove.l %0,%%fpcr" : : "g" (new_fpcr));        \
+  } while (0)
+#define _Py_SET_53BIT_PRECISION_END                                     \
+  do {                                                                  \
+    if (new_fpcr != old_fpcr)                                           \
+      __asm__ volatile ("fmove.l %0,%%fpcr" : : "g" (old_fpcr));        \
+  } while (0)
+#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.
+ * The macro must be placed before the declaration.
+ * Usage:
+ *    Py_DEPRECATED(3.3) extern int old_var;
+ *    Py_DEPRECATED(3.4) typedef int T1;
+ *    Py_DEPRECATED(3.8) PyAPI_FUNC(int) Py_OldFunction(void);
+ */
+#if defined(__GNUC__) \
+    && ((__GNUC__ >= 4) || (__GNUC__ == 3) && (__GNUC_MINOR__ >= 1))
+#define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
+#elif defined(_MSC_VER)
+#define Py_DEPRECATED(VERSION) __declspec(deprecated( \
+                                          "deprecated in " #VERSION))
+#else
+#define Py_DEPRECATED(VERSION_UNUSED)
+#endif
+
+
+/* _Py_HOT_FUNCTION
+ * The hot attribute on a function is used to inform the compiler that the
+ * function is a hot spot of the compiled program. The function is optimized
+ * more aggressively and on many target it is placed into special subsection of
+ * the text section so all hot functions appears close together improving
+ * locality.
+ *
+ * Usage:
+ *    int _Py_HOT_FUNCTION x(void) { return 3; }
+ *
+ * Issue #28618: This attribute must not be abused, otherwise it can have a
+ * negative effect on performance. Only the functions were Python spend most of
+ * its time must use it. Use a profiler when running performance benchmark
+ * suite to find these functions.
+ */
+#if defined(__GNUC__) \
+    && ((__GNUC__ >= 5) || (__GNUC__ == 4) && (__GNUC_MINOR__ >= 3))
+#define _Py_HOT_FUNCTION __attribute__((hot))
+#else
+#define _Py_HOT_FUNCTION
+#endif
+
+/* _Py_NO_INLINE
+ * Disable inlining on a function. For example, it helps to reduce the C stack
+ * consumption.
+ *
+ * Usage:
+ *    int _Py_NO_INLINE x(void) { return 3; }
+ */
+#if defined(_MSC_VER)
+#  define _Py_NO_INLINE __declspec(noinline)
+#elif defined(__GNUC__) || defined(__clang__)
+#  define _Py_NO_INLINE __attribute__ ((noinline))
+#else
+#  define _Py_NO_INLINE
+#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 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. */
+#if defined(HAVE_SYS_TERMIO_H) && !defined(__hpux)
+#include <sys/termio.h>
+#endif
+
+
+/* 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.
+ */
+
+#if defined(__APPLE__)
+#  define _PY_PORT_CTYPE_UTF8_ISSUE
+#endif
+
+#ifdef _PY_PORT_CTYPE_UTF8_ISSUE
+#ifndef __cplusplus
+   /* The workaround below is unsafe in C++ because
+    * the <locale> defines these symbols as real functions,
+    * with a slightly different signature.
+    * See issue #10910
+    */
+#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
+#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.
+
+  Cygwin is the only other autoconf platform requiring special
+  linkage handling and it uses __declspec().
+*/
+#if defined(__CYGWIN__)
+#       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)
+#               if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
+#                       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 */
+#                       if defined(__CYGWIN__)
+#                               define PyMODINIT_FUNC __declspec(dllexport) PyObject*
+#                       else /* __CYGWIN__ */
+#                               define PyMODINIT_FUNC PyObject*
+#                       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) PyObject*
+#                       else /* __cplusplus */
+#                               define PyMODINIT_FUNC __declspec(dllexport) PyObject*
+#                       endif /* __cplusplus */
+#               endif /* Py_BUILD_CORE */
+#       endif /* HAVE_DECLSPEC_DLL */
+#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" PyObject*
+#       else /* __cplusplus */
+#               define PyMODINIT_FUNC PyObject*
+#       endif /* __cplusplus */
+#endif
+
+/* 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) )
+#define Py_GCC_ATTRIBUTE(x)
+#else
+#define Py_GCC_ATTRIBUTE(x) __attribute__(x)
+#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
+
+#ifndef Py_LL
+#define Py_LL(x) x##LL
+#endif
+
+#ifndef Py_ULL
+#define Py_ULL(x) Py_LL(x##U)
+#endif
+
+#define Py_VA_COPY va_copy
+
+/*
+ * Convenient macros to deal with endianness of the platform. WORDS_BIGENDIAN is
+ * detected by configure and defined in pyconfig.h. The code in pyconfig.h
+ * also takes care of Apple's universal builds.
+ */
+
+#ifdef WORDS_BIGENDIAN
+#define PY_BIG_ENDIAN 1
+#define PY_LITTLE_ENDIAN 0
+#else
+#define PY_BIG_ENDIAN 0
+#define PY_LITTLE_ENDIAN 1
+#endif
+
+#ifdef Py_BUILD_CORE
+/*
+ * Macros to protect CRT calls against instant termination when passed an
+ * invalid parameter (issue23524).
+ */
+#if defined _MSC_VER && _MSC_VER >= 1900
+
+extern _invalid_parameter_handler _Py_silent_invalid_parameter_handler;
+#define _Py_BEGIN_SUPPRESS_IPH { _invalid_parameter_handler _Py_old_handler = \
+    _set_thread_local_invalid_parameter_handler(_Py_silent_invalid_parameter_handler);
+#define _Py_END_SUPPRESS_IPH _set_thread_local_invalid_parameter_handler(_Py_old_handler); }
+
+#else
+
+#define _Py_BEGIN_SUPPRESS_IPH
+#define _Py_END_SUPPRESS_IPH
+
+#endif /* _MSC_VER >= 1900 */
+#endif /* Py_BUILD_CORE */
+
+#ifdef __ANDROID__
+   /* The Android langinfo.h header is not used. */
+#  undef HAVE_LANGINFO_H
+#  undef CODESET
+#endif
+
+/* Maximum value of the Windows DWORD type */
+#define PY_DWORD_MAX 4294967295U
+
+/* This macro used to tell whether Python was built with multithreading
+ * enabled.  Now multithreading is always enabled, but keep the macro
+ * for compatibility.
+ */
+#ifndef WITH_THREAD
+#  define WITH_THREAD
+#endif
+
+/* Check that ALT_SOABI is consistent with Py_TRACE_REFS:
+   ./configure --with-trace-refs should must be used to define Py_TRACE_REFS */
+#if defined(ALT_SOABI) && defined(Py_TRACE_REFS)
+#  error "Py_TRACE_REFS ABI is not compatible with release and debug ABI"
+#endif
+
+#if defined(__ANDROID__) || defined(__VXWORKS__)
+   /* Ignore the locale encoding: force UTF-8 */
+#  define _Py_FORCE_UTF8_LOCALE
+#endif
+
+#if defined(_Py_FORCE_UTF8_LOCALE) || defined(__APPLE__)
+   /* Use UTF-8 as filesystem encoding */
+#  define _Py_FORCE_UTF8_FS_ENCODING
+#endif
+
+/* Mark a function which cannot return. Example:
+
+   PyAPI_FUNC(void) _Py_NO_RETURN PyThread_exit_thread(void); */
+#if defined(__clang__) || \
+    (defined(__GNUC__) && \
+     ((__GNUC__ >= 3) || \
+      (__GNUC__ == 2) && (__GNUC_MINOR__ >= 5)))
+#  define _Py_NO_RETURN __attribute__((__noreturn__))
+#elif defined(_MSC_VER)
+#  define _Py_NO_RETURN __declspec(noreturn)
+#else
+#  define _Py_NO_RETURN
+#endif
+
+#endif /* Py_PYPORT_H */