[Patches] [ python-Patches-438013 ] Remove 2-byte Py_UCS2 assumptions

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Patches item #438013, was opened at 2001-07-02 12:43
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Category: core (C code)
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Tim Peters (tim_one)
Assigned to: M.-A. Lemburg (lemburg)
Summary: Remove 2-byte Py_UCS2 assumptions

Initial Comment:
The patch changes PyUnicode_EncodeUTF16 and 
PyUnicode_DecodeUTF16 to work without assuming the 
existence of a (exactly) 2-byte type.

There are no more references remaining in the code 
base to Py_UCS2, except for what looks to be a now-
pointless complaint in unicodeobject.h.


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>Comment By: Tim Peters (tim_one)
Date: 2001-07-02 13:27

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Isn't Py_UNICODE always big enough to hold a UCS-2 code 
point?  If the latter is 16 bits (which I assume), C 
guarantees an unsigned short is big enough to hold it (and 
doesn't guarantee an int is bigger than that -- although 
Python would be pretty useless if an int weren't bigger!).

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Comment By: Fredrik Lundh (effbot)
Date: 2001-07-02 13:09

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+1 from here.

Py_UCS2 should either go away, or be redefined as "large 
enough to hold a UCS-2 code point" (maybe there's some 
codec that may want to use such a data type?  in real 
life, "unsigned int" is probably a decent approximation...)

</F>

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