sjjaffe/cpp-useful-iterators @ 4b4492af6a7d4c56a99ab19057d657a630522b05

Sam Jaffe 4b4492af6a refactor: re-implement joining_iterator using capture_iterator as needed		2 lat temu
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iterator	4b4492af6a refactor: re-implement joining_iterator using capture_iterator as needed	2 lat temu