
[Nick Coghlan]
What about decimal-in-C, by the way? Is anyone still working on it?
I'm seeking funding for the project. If it is forthcoming, I intend to do a pure C version that simply implements the spec and then adds wrappers for the pure python interface. That will save the cost of constantly creating and modifying many pyobjects that currently arise during intermediate calculations. It's possible to focus just of the mantissa calculations but the cost of the actual arithmetic work is swapped by the overhead of managing contexts, checking for special values, and memory allocations. Without addressing those, I think decimal will remain critically performance challenged compared to native floats (decimals will never be that fast, but they can get close enough to make them a viable alternative for many kinds of work). Raymond