[Python-Dev] Proper tail recursion
colanderman at gmail.com
Mon Jul 19 19:14:55 CEST 2004
On Mon, 19 Jul 2004 13:06:59 -0400, Phillip J. Eby
<pje at telecommunity.com> wrote:
> At 12:27 PM 7/19/04 -0400, Chris King wrote:
> >Given the proposed changes:
> >1) make a seperate eval loop that supports tail calls so as not to
> >impact performance of normal programs,
> Um, no. Please look at ceval.c before you even consider proposing
> something like that, and then be sure to have a proposal for how you'd
> *maintain* this second eval loop.
I've spent a good deal of time in ceval.c implementing my previous
proposal, and an #include and some #defines should do the trick.
Result: only one function to maintain, living in a seperate file.
Yes, I realize that's a roundabout way of doing stuff, but even
projects as closely related to Python as numarray use much more
drastic measures to automate code duplication (hint: the C
preprocessor wasn't enough for numarray).
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