Updated non-optimized patch. The only real change is that I've moved
some of the configuration stuff around (so not worth re-benchmarking
this one); I hope that I've now got the division of labour correct:
- configure script simply parses the --enable-big-digits option and sets
PYLONG_DIGIT_SIZE in pyconfig.h to 15 or 30, or leaves it undefined
if that option wasn't given to configure
- PC/pyconfig.h doesn't define PYLONG_DIGIT_SIZE
- pyport.h chooses a suitable value for PYLONG_DIGIT_SIZE if it's not
already defined
- Include/longintrepr.h just follows orders: it expects
PYLONG_DIGIT_SIZE
to be defined already, and complains if PYLONG_DIGIT_SIZE=30 but the
necessary integer types aren't available.
Thanks for all the benchmarking.
I'd probably better check on python-dev before pushing this in, since
it's a new feature. I hope no-one wants a PEP. :-)