Some combinatorics?

[bearophile]

I'd like to write combinations, permutations, etc ranges (generators), for std.algorithm or for a small std.combinatorics Phobos module. (I have written this code time ago for dlibs1 in D1).

I have found some small performance problems in converting the opApply combinatorics code to the Range protocol.

Are you interested in this module (or in just those few generators for std.algorithm)? I find them often useful.

Bye,
bearophile