[Python-Dev] Py_ssize_t

[Ronald Oussoren]

On 20 Feb, 2007, at 10:47, Raymond Hettinger wrote:


>
> The other area where I expected to hear wailing and gnashing of  
> teeth is users
> compiling with third-party extensions that haven't been updated to  
> a Py_ssize_t
> API and still use longs.  I would have expected some instability  
> due to the size
> mismatches in function signatures -- the difference would only show- 
> up with
> giant sized data structures -- the bigger they are, the harder they  
> fall.  OTOH,
> there have not been any compliants either -- I would have expected  
> someone to
> submit a patch to pyport.h that allowed a #define to force  
> Py_ssize_t back to a
> long so that the poster could make a reliable build that included  
> non-updated
> third-party extensions.

Maybe that's because most sane 64-bit systems use LP64 and therefore  
don't have any problems with mixing Py_ssize_t and long. AFAIK  
Windows is the only major platform that doesn't use the LP64 model  
and 64-bit windows isn't used a lot.

Ronald