[Python-Dev] int vs ssize_t in unicode

["Martin v. Löwis"]

Neal Norwitz wrote:
> I just grepped for INT_MAX and there's a ton of them still (well 83 in
> */*.c).  Some aren't an issue like posixmodule.c, those are
> _SC_INT_MAX.  marshal is probably ok, but all uses should be verified.
>  Really all uses of {INT,LONG}_{MIN,MAX} should be verified and
> converted to PY_SSIZE_T_{MIN,MAX} as appropriate.

I replaced all the trivial ones; the remaining ones are (IMO) more
involved, or correct. In particular:

- collectionsmodule: deque is still restricted to 2GiB elements
- cPickle: pickling does not support huge strings (and probably
  shouldn't); likewise marshal
- _sre is still limited to INT_MAX completely
- not sure why the mbcs codec is restricted to INT_MAX; somebody
  should check the Win64 API whether the restriction can be
  removed (most likely, it can)
- PyObject_CallFunction must be duplicated for PY_SSIZE_T_CLEAN,
  then exceptions.c can be extended.

Regards,
Martin