Christian Tismer <tismer@stackless.com> writes:
Hi pypy-dev,
I just stumbled oversome code from Gustavo. I think we were considering doing exact float formatting. I wrote something that works. But if we like to have it, this implementation gives the shortest possible representation.
At some cost, of course...
This is the same algorithm I implemented in lib/_float_formatting.py ages and ages ago... It's not RPython as it uses long arithmetic, but only boundedly so (I don't think it will use a number larger than 2**53) so you could probably fake it by using a pair of ints. The problem with _float_formatting is that I never got around to implementing the fixed formatting routines from the same paper (and Gustavo hasn't either, AFAIK). Cheers, mwh --
I wouldn't want to live without readline, but some of the things it does call for the application of thumbscrews. -- me on python-dev