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	svn+ssh://pythondev@svn.python.org/python/trunk ........ r73701 | mark.dickinson | 2009-06-30 16:32:30 +0100 (Tue, 30 Jun 2009) | 3 lines Issue #6347: Add inttypes.h to the pyport.h #includes; fixes a build failure on HP-UX 11.00. ........
		
			
				
	
	
		
			782 lines
		
	
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			782 lines
		
	
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
#ifndef Py_PYPORT_H
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#define Py_PYPORT_H
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#include "pyconfig.h" /* include for defines */
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/* Some versions of HP-UX & Solaris need inttypes.h for int32_t,
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   INT32_MAX, etc. */
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#ifdef HAVE_INTTYPES_H
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#include <inttypes.h>
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#endif
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#endif
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/**************************************************************************
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Symbols and macros to supply platform-independent interfaces to basic
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C language & library operations whose spellings vary across platforms.
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Please try to make documentation here as clear as possible:  by definition,
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the stuff here is trying to illuminate C's darkest corners.
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Config #defines referenced here:
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SIGNED_RIGHT_SHIFT_ZERO_FILLS
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Meaning:  To be defined iff i>>j does not extend the sign bit when i is a
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          signed integral type and i < 0.
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Used in:  Py_ARITHMETIC_RIGHT_SHIFT
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Py_DEBUG
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Meaning:  Extra checks compiled in for debug mode.
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Used in:  Py_SAFE_DOWNCAST
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HAVE_UINTPTR_T
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Meaning:  The C9X type uintptr_t is supported by the compiler
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Used in:  Py_uintptr_t
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HAVE_LONG_LONG
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Meaning:  The compiler supports the C type "long long"
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Used in:  PY_LONG_LONG
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**************************************************************************/
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/* typedefs for some C9X-defined synonyms for integral types.
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 *
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 * The names in Python are exactly the same as the C9X names, except with a
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 * Py_ prefix.  Until C9X is universally implemented, this is the only way
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 * to ensure that Python gets reliable names that don't conflict with names
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 * in non-Python code that are playing their own tricks to define the C9X
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 * names.
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 *
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 * NOTE: don't go nuts here!  Python has no use for *most* of the C9X
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 * integral synonyms.  Only define the ones we actually need.
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 */
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#ifdef HAVE_LONG_LONG
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#ifndef PY_LONG_LONG
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#define PY_LONG_LONG long long
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#if defined(LLONG_MAX)
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/* If LLONG_MAX is defined in limits.h, use that. */
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#define PY_LLONG_MIN LLONG_MIN
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#define PY_LLONG_MAX LLONG_MAX
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#define PY_ULLONG_MAX ULLONG_MAX
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#elif defined(__LONG_LONG_MAX__)
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/* Otherwise, if GCC has a builtin define, use that. */
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#define PY_LLONG_MAX __LONG_LONG_MAX__
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#define PY_LLONG_MIN (-PY_LLONG_MAX-1)
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#define PY_ULLONG_MAX (__LONG_LONG_MAX__*2ULL + 1ULL)
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#else
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/* Otherwise, rely on two's complement. */
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#define PY_ULLONG_MAX (~0ULL)
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#define PY_LLONG_MAX  ((long long)(PY_ULLONG_MAX>>1))
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#define PY_LLONG_MIN (-PY_LLONG_MAX-1)
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#endif /* LLONG_MAX */
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#endif
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#endif /* HAVE_LONG_LONG */
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/* a build with 30-bit digits for Python long integers needs an exact-width
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 * 32-bit unsigned integer type to store those digits.  (We could just use
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 * type 'unsigned long', but that would be wasteful on a system where longs
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 * are 64-bits.)  On Unix systems, the autoconf macro AC_TYPE_UINT32_T defines
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 * uint32_t to be such a type unless stdint.h or inttypes.h defines uint32_t.
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 * However, it doesn't set HAVE_UINT32_T, so we do that here.
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 */
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#if (defined UINT32_MAX || defined uint32_t)
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#ifndef PY_UINT32_T
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#define HAVE_UINT32_T 1
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#define PY_UINT32_T uint32_t
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#endif
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#endif
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/* Macros for a 64-bit unsigned integer type; used for type 'twodigits' in the
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 * long integer implementation, when 30-bit digits are enabled.
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 */
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#if (defined UINT64_MAX || defined uint64_t)
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#ifndef PY_UINT64_T
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#define HAVE_UINT64_T 1
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#define PY_UINT64_T uint64_t
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#endif
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#endif
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/* Signed variants of the above */
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#if (defined INT32_MAX || defined int32_t)
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#ifndef PY_INT32_T
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#define HAVE_INT32_T 1
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#define PY_INT32_T int32_t
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#endif
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#endif
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#if (defined INT64_MAX || defined int64_t)
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#ifndef PY_INT64_T
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#define HAVE_INT64_T 1
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#define PY_INT64_T int64_t
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#endif
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#endif
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/* If PYLONG_BITS_IN_DIGIT is not defined then we'll use 30-bit digits if all
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   the necessary integer types are available, and we're on a 64-bit platform
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   (as determined by SIZEOF_VOID_P); otherwise we use 15-bit digits. */
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#ifndef PYLONG_BITS_IN_DIGIT
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#if (defined HAVE_UINT64_T && defined HAVE_INT64_T && \
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     defined HAVE_UINT32_T && defined HAVE_INT32_T && SIZEOF_VOID_P >= 8)
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#define PYLONG_BITS_IN_DIGIT 30
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#else
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#define PYLONG_BITS_IN_DIGIT 15
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#endif
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#endif
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/* uintptr_t is the C9X name for an unsigned integral type such that a
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 * legitimate void* can be cast to uintptr_t and then back to void* again
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 * without loss of information.  Similarly for intptr_t, wrt a signed
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 * integral type.
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 */
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#ifdef HAVE_UINTPTR_T
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typedef uintptr_t	Py_uintptr_t;
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typedef intptr_t	Py_intptr_t;
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#elif SIZEOF_VOID_P <= SIZEOF_INT
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typedef unsigned int	Py_uintptr_t;
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typedef int		Py_intptr_t;
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#elif SIZEOF_VOID_P <= SIZEOF_LONG
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typedef unsigned long	Py_uintptr_t;
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typedef long		Py_intptr_t;
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#elif defined(HAVE_LONG_LONG) && (SIZEOF_VOID_P <= SIZEOF_LONG_LONG)
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typedef unsigned PY_LONG_LONG	Py_uintptr_t;
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typedef PY_LONG_LONG		Py_intptr_t;
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#else
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#   error "Python needs a typedef for Py_uintptr_t in pyport.h."
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#endif /* HAVE_UINTPTR_T */
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/* Py_ssize_t is a signed integral type such that sizeof(Py_ssize_t) ==
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 * sizeof(size_t).  C99 doesn't define such a thing directly (size_t is an
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 * unsigned integral type).  See PEP 353 for details.
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 */
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#ifdef HAVE_SSIZE_T
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typedef ssize_t		Py_ssize_t;
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#elif SIZEOF_VOID_P == SIZEOF_SIZE_T
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typedef Py_intptr_t	Py_ssize_t;
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#else
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#   error "Python needs a typedef for Py_ssize_t in pyport.h."
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#endif
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/* Largest possible value of size_t.
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   SIZE_MAX is part of C99, so it might be defined on some
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   platforms. If it is not defined, (size_t)-1 is a portable
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   definition for C89, due to the way signed->unsigned 
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   conversion is defined. */
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#ifdef SIZE_MAX
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#define PY_SIZE_MAX SIZE_MAX
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#else
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#define PY_SIZE_MAX ((size_t)-1)
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#endif
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/* Largest positive value of type Py_ssize_t. */
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#define PY_SSIZE_T_MAX ((Py_ssize_t)(((size_t)-1)>>1))
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/* Smallest negative value of type Py_ssize_t. */
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#define PY_SSIZE_T_MIN (-PY_SSIZE_T_MAX-1)
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#if SIZEOF_PID_T > SIZEOF_LONG
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#   error "Python doesn't support sizeof(pid_t) > sizeof(long)"
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#endif
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/* PY_FORMAT_SIZE_T is a platform-specific modifier for use in a printf
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 * format to convert an argument with the width of a size_t or Py_ssize_t.
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 * C99 introduced "z" for this purpose, but not all platforms support that;
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 * e.g., MS compilers use "I" instead.
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 *
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 * These "high level" Python format functions interpret "z" correctly on
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 * all platforms (Python interprets the format string itself, and does whatever
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 * the platform C requires to convert a size_t/Py_ssize_t argument):
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 *
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 *     PyBytes_FromFormat
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 *     PyErr_Format
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 *     PyBytes_FromFormatV
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 *     PyUnicode_FromFormatV
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 *
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 * Lower-level uses require that you interpolate the correct format modifier
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 * yourself (e.g., calling printf, fprintf, sprintf, PyOS_snprintf); for
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 * example,
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 *
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 *     Py_ssize_t index;
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 *     fprintf(stderr, "index %" PY_FORMAT_SIZE_T "d sucks\n", index);
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 *
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 * That will expand to %ld, or %Id, or to something else correct for a
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 * Py_ssize_t on the platform.
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 */
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#ifndef PY_FORMAT_SIZE_T
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#   if SIZEOF_SIZE_T == SIZEOF_INT && !defined(__APPLE__)
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#       define PY_FORMAT_SIZE_T ""
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#   elif SIZEOF_SIZE_T == SIZEOF_LONG
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#       define PY_FORMAT_SIZE_T "l"
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#   elif defined(MS_WINDOWS)
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#       define PY_FORMAT_SIZE_T "I"
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#   else
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#       error "This platform's pyconfig.h needs to define PY_FORMAT_SIZE_T"
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#   endif
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#endif
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/* Py_LOCAL can be used instead of static to get the fastest possible calling
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 * convention for functions that are local to a given module.
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 *
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 * Py_LOCAL_INLINE does the same thing, and also explicitly requests inlining,
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 * for platforms that support that.
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 *
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 * If PY_LOCAL_AGGRESSIVE is defined before python.h is included, more
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 * "aggressive" inlining/optimizaion is enabled for the entire module.  This
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 * may lead to code bloat, and may slow things down for those reasons.  It may
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 * also lead to errors, if the code relies on pointer aliasing.  Use with
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 * care.
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 *
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 * NOTE: You can only use this for functions that are entirely local to a
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 * module; functions that are exported via method tables, callbacks, etc,
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 * should keep using static.
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 */
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#undef USE_INLINE /* XXX - set via configure? */
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#if defined(_MSC_VER)
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#if defined(PY_LOCAL_AGGRESSIVE)
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/* enable more aggressive optimization for visual studio */
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#pragma optimize("agtw", on)
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#endif
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/* ignore warnings if the compiler decides not to inline a function */ 
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#pragma warning(disable: 4710)
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/* fastest possible local call under MSVC */
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#define Py_LOCAL(type) static type __fastcall
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#define Py_LOCAL_INLINE(type) static __inline type __fastcall
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#elif defined(USE_INLINE)
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#define Py_LOCAL(type) static type
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#define Py_LOCAL_INLINE(type) static inline type
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#else
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#define Py_LOCAL(type) static type
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#define Py_LOCAL_INLINE(type) static type
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#endif
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/* Py_MEMCPY can be used instead of memcpy in cases where the copied blocks
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 * are often very short.  While most platforms have highly optimized code for
 | 
						|
 * large transfers, the setup costs for memcpy are often quite high.  MEMCPY
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 * solves this by doing short copies "in line".
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 */
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#if defined(_MSC_VER)
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#define Py_MEMCPY(target, source, length) do {				\
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		size_t i_, n_ = (length);				\
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		char *t_ = (void*) (target);				\
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		const char *s_ = (void*) (source);			\
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		if (n_ >= 16)						\
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			memcpy(t_, s_, n_);				\
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		else							\
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			for (i_ = 0; i_ < n_; i_++)			\
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				t_[i_] = s_[i_];			\
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	} while (0)
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#else
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#define Py_MEMCPY memcpy
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#endif
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#include <stdlib.h>
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#include <math.h> /* Moved here from the math section, before extern "C" */
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/********************************************
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 * WRAPPER FOR <time.h> and/or <sys/time.h> *
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 ********************************************/
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#ifdef TIME_WITH_SYS_TIME
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#include <sys/time.h>
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#include <time.h>
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#else /* !TIME_WITH_SYS_TIME */
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#else /* !HAVE_SYS_TIME_H */
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#include <time.h>
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#endif /* !HAVE_SYS_TIME_H */
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#endif /* !TIME_WITH_SYS_TIME */
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/******************************
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 * WRAPPER FOR <sys/select.h> *
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 ******************************/
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/* NB caller must include <sys/types.h> */
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif /* !HAVE_SYS_SELECT_H */
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/*******************************
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 * stat() and fstat() fiddling *
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 *******************************/
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/* We expect that stat and fstat exist on most systems.
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 *  It's confirmed on Unix, Mac and Windows.
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 *  If you don't have them, add
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 *      #define DONT_HAVE_STAT
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 * and/or
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 *      #define DONT_HAVE_FSTAT
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 * to your pyconfig.h. Python code beyond this should check HAVE_STAT and
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 * HAVE_FSTAT instead.
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						|
 * Also
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 *      #define HAVE_SYS_STAT_H
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						|
 * if <sys/stat.h> exists on your platform, and
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 *      #define HAVE_STAT_H
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						|
 * if <stat.h> does.
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 */
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#ifndef DONT_HAVE_STAT
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#define HAVE_STAT
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#endif
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#ifndef DONT_HAVE_FSTAT
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#define HAVE_FSTAT
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#endif
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#ifdef HAVE_SYS_STAT_H
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#if defined(PYOS_OS2) && defined(PYCC_GCC)
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#include <sys/types.h>
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#endif
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#include <sys/stat.h>
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#elif defined(HAVE_STAT_H)
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#include <stat.h>
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						|
#endif
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#if defined(PYCC_VACPP)
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/* VisualAge C/C++ Failed to Define MountType Field in sys/stat.h */
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#define S_IFMT (S_IFDIR|S_IFCHR|S_IFREG)
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						|
#endif
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						|
#ifndef S_ISREG
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#define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
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						|
#endif
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 | 
						|
#ifndef S_ISDIR
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#define S_ISDIR(x) (((x) & S_IFMT) == S_IFDIR)
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						|
#endif
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						|
#ifdef __cplusplus
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						|
/* Move this down here since some C++ #include's don't like to be included
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						|
   inside an extern "C" */
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extern "C" {
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						|
#endif
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 | 
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 | 
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/* Py_ARITHMETIC_RIGHT_SHIFT
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						|
 * C doesn't define whether a right-shift of a signed integer sign-extends
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						|
 * or zero-fills.  Here a macro to force sign extension:
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						|
 * Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J)
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						|
 *    Return I >> J, forcing sign extension.  Arithmetically, return the
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						|
 *    floor of I/2**J.
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						|
 * Requirements:
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						|
 *    I should have signed integer type.  In the terminology of C99, this can
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						|
 *    be either one of the five standard signed integer types (signed char,
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						|
 *    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
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						|
 *    type of I (because C doesn't define what happens for J outside that
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						|
 *    range either).
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						|
 *    TYPE used to specify the type of I, but is now ignored.  It's been left
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						|
 *    in for backwards compatibility with versions <= 2.6 or 3.0.
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						|
 * Caution:
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						|
 *    I may be evaluated more than once.
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						|
 */
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						|
#ifdef SIGNED_RIGHT_SHIFT_ZERO_FILLS
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						|
#define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) \
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						|
	((I) < 0 ? -1-((-1-(I)) >> (J)) : (I) >> (J))
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						|
#else
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						|
#define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) ((I) >> (J))
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						|
#endif
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						|
 | 
						|
/* 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.
 | 
						|
 */
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						|
#define Py_FORCE_EXPANSION(X) X
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 | 
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/* 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.
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						|
 */
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						|
#ifdef Py_DEBUG
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						|
#define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) \
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						|
	(assert((WIDE)(NARROW)(VALUE) == (VALUE)), (NARROW)(VALUE))
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						|
#else
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						|
#define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) (NARROW)(VALUE)
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						|
#endif
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 | 
						|
/* 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 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)
 | 
						|
/* 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) */
 | 
						|
 | 
						|
 | 
						|
/* 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
 | 
						|
#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)
 | 
						|
#		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 */
 | 
						|
#			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 http://python.org/doc/FAQ.html#3.24 */
 | 
						|
#			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 */
 | 
						|
#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
 | 
						|
 | 
						|
/*
 | 
						|
 * 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 */
 |