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This is my patch:

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[ 1181301 ] make float packing copy bytes when they can

which hasn't been reviewed, despite numerous threats to check it in
anyway if noone reviews it.  Please read the diff on the checkin list,
at least!

The basic idea is to examine the bytes of some 'probe values' to see if
the current platform is a IEEE 754-ish platform, and if so
_PyFloat_{Pack,Unpack}{4,8} just copy bytes around.

The rest is hair for testing, and tests.
This commit is contained in:
Michael W. Hudson 2005-05-27 15:23:20 +00:00
parent ff52286d4a
commit ba283e2b7f
5 changed files with 662 additions and 274 deletions
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2
Python/pythonrun.c
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@ -172,6 +172,8 @@ Py_InitializeEx(int install_sigs)
if (!_PyInt_Init())
Py_FatalError("Py_Initialize: can't init ints");
_PyFloat_Init();
interp->modules = PyDict_New();
if (interp->modules == NULL)
Py_FatalError("Py_Initialize: can't make modules dictionary");