# gen-nested-iter-yield

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`gen-nested-iter-yield` exports a helper macro, `nested_iter_yield`, which can
be used to generate n-nested for loops over identical iterators. This is
useful for generating a stream of permutations with replacement without
storing unnecessary intermediary buffers.

The macro returns a
[genawaiter::sync](https://docs.rs/genawaiter/latest/genawaiter/sync/index.html)
generator.