E&S CVS Commit: PyProtocols - Add C speedups for range comparisons in generic functions and dispatchers.

pje at eby-sarna.com pje at eby-sarna.com
Tue Jan 25 18:19:00 EST 2005

Module Name:	PyProtocols
Committed By:	pje
Date:		Sat Jan 22 23:40:43 UTC 2005

Modified Files:
	PyProtocols/src/dispatch: strategy.py
	PyProtocols/src/protocols: _speedups.c _speedups.pyx

Log Message:
Add C speedups for range comparisons in generic functions and dispatchers.
Mainly, this speeds up the binary search part when the target value is
at the low or high end of the scale (because of comparisons with the
special 'Min' and 'Max' objects).  Performance tests appear to indicate
that Dispatcher.__getitem__ (and the nested 'get' closure) is where simple
generic functions spend most of their dispatch time, so that probably
needs to be written in C as well.  But, it should probably wait until after
I get pattern matching and variable binding figured out.

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cvs rdiff -r1.16 -r1.17 PyProtocols/src/dispatch/strategy.py
cvs rdiff -r1.12 -r1.13 PyProtocols/src/protocols/_speedups.c \

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