[Patches] [ python-Patches-1181301 ] make float packing copy bytes when they can

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Patches item #1181301, was opened at 2005-04-12 08:37
Message generated for change (Settings changed) made by mwh
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Category: Core (C code)
Group: Python 2.5
Status: Closed
Resolution: Accepted
Priority: 5
Submitted By: Michael Hudson (mwh)
>Assigned to: Michael Hudson (mwh)
Summary: make float packing copy bytes when they can

Initial Comment:
As discussed on python-dev, this makes the 
_PyFloat_{Pack,Unpack}{4,8} functions copy bytes around when 
peering at 1.5 has the right result.

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Comment By: Michael Hudson (mwh)
Date: 2005-05-27 16:24

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Checked in as:

Lib/test/test_float.py revision 1.1
Include/floatobject.h revision 2.23
Include/pythonrun.h revision 2.66
Objects/floatobject.c revision 2.136
Python/pythonrun.c revision 2.214

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Comment By: Michael Hudson (mwh)
Date: 2005-04-19 17:06

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Stop me if this is getting silly.

This adds class methods __getformat__ and __setformat__ to the float 
type and uses them in a new test file, test_float (they have docstrings that 
warn people not to use them).

I'd like to check this in soon.  Any objections?

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Comment By: Michael Hudson (mwh)
Date: 2005-04-14 08:51

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This version attacks comments some more, uses more interesting probe 
values and, um, actually works on a little-endian platform (previous 
versions had a very stupid bug).

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Comment By: Michael Hudson (mwh)
Date: 2005-04-12 18:18

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New patch, which attacks comments in floatobject.h and implements Tim's 
idea of refusing to unpack an IEEE special on a non-IEEE platform.

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