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| -rw-r--r-- | Include/pyport.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/Include/pyport.h b/Include/pyport.h index 5bd641c..f59ba37 100644 --- a/Include/pyport.h +++ b/Include/pyport.h @@ -28,11 +28,54 @@ 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: LONG_LONG + **************************************************************************/ #define ANY void /* For API compatibility only. Obsolete, do not use. */ +/* 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 LONG_LONG +#define LONG_LONG long long +#endif +#endif /* HAVE_LONG_LONG */ + +/* 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. + */ +#ifdef HAVE_UINTPTR_T +typedef uintptr_t Py_uintptr_t; +#elif SIZEOF_VOID_P <= SIZEOF_INT +typedef unsigned int Py_uintptr_t; +#elif SIZEOF_VOID_P <= SIZEOF_LONG +typedef unsigned long Py_uintptr_t; +#elif defined(HAVE_LONG_LONG) && (SIZEOF_VOID_P <= SIZEOF_LONG_LONG) +typedef unsigned LONG_LONG Py_uintptr_t; +#else +# error "Python needs a typedef for Py_uintptr_t in pyport.h." +#endif /* HAVE_UINTPTR_T */ + #ifdef HAVE_STDLIB_H #include <stdlib.h> #endif |