[PATCH] D144503: [WIP][STLExtras] Allow `llvm::enumerate` to enumerate over multiple ranges

[David Blaikie via Phabricator via llvm-commits]

dblaikie added a comment.

> C++17 does not allow for recursive expansion of structured bindings.

Could we address this issue more directly, perhaps - like having a "flatten" (maybe it only goes one level deep - a range over pair or tuple and any of the elements of that tuple that are themselves tuples would be flattened into one big tuple (but only that one layer deep - could use the wrapper multiple times if you wanted to flatten even deeper))?


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https://reviews.llvm.org/D144503