I need to collect two separate vecs. One vec is collected-into if predicate A is true, and the other vec is collected-into if predicate B is true. It is preferable that the conditions are evaluated in the same closure within the lambda expression
Almost word-for-word on-spot.
A related one is
Itertools::partition_map, which lets each side have distinct item and collection types.
Now what would be interesting if this can be done in an optimized way such that you can partition X into (N, N1), and_then partition N into (K, K1) simultaneous to partitioning N1 into (Z, Z1). AKA, a double partition that results in a tuple of len 4: (K, K1, Z, Z1)
/ ==> K / -- N ----> / \ ==> K1 X ==> \ / ==> Z \ -- N1 ----> \ ==> Z1
I actually did enable something like that in rayon with
ParallelExtend for tuples. I think standard iterators could do the same with
Extend, but I never actually proposed this.
Wow, you made rayon! YOU must be the one that eats the nomicon for breakfast, lol! And thank you btw for the help
I'm one of the authors, yes. Yet I still try to keep a healthy caution around nomicon topics.
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