[Python-Dev] Adventures with x64, VS7 and VS8 on Windows
mal at egenix.com
Mon May 21 13:28:04 CEST 2007
On 2007-05-21 12:30, Kristján Valur Jónsson wrote:
>> [Py_UNICODE being #defined as "unsigned short" on Windows]
>> I'd rather make it a platform-specific definition (for platform=Windows
>> API). Correct me if I'm wrong, but isn't wchar_t also available in VS
>> 2003 (and even in VC6?). And doesn't it have the "right" definition in
>> all these compilers?
>> So +1 for setting Py_UNICODE to wchar_t on Windows.
> Yes. Btw, in previous visual studio versions, wchar_t was not treated
> as a builtin type by default, but rather as synonymous with unsighed short.
> Now the default is that it is, and this causes some semantic differences
> and incompatibilities of the type seen.
+1 from me.
If think this is simply a bug introduced with the UCS4 patches in
unicodeobject.h already has this code:
/* Windows has a usable wchar_t type (unless we're using UCS-4) */
# if defined(MS_WIN32) && Py_UNICODE_SIZE == 2
# define HAVE_USABLE_WCHAR_T
# define PY_UNICODE_TYPE wchar_t
# if defined(Py_UNICODE_WIDE)
# define PY_UNICODE_TYPE Py_UCS4
But for some reason, pyconfig.h defines:
/* Define as the integral type used for Unicode representation. */
#define PY_UNICODE_TYPE unsigned short
/* Define as the size of the unicode type. */
#define Py_UNICODE_SIZE SIZEOF_SHORT
/* Define if you have a useable wchar_t type defined in wchar.h; useable
means wchar_t must be 16-bit unsigned type. (see
#if Py_UNICODE_SIZE == 2
disabling the default settings in the unicodeobject.h.
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