[PATCH] D48348: [ADT] Add zip_longest iterators.

[Michael Kruse via Phabricator via llvm-commits]

Meinersbur added a comment.

Thanks for accepting. I expected a discussion on whether zip_longest_default or zip_longest_optional is better (or make llvm::Optional support references and use zip_longest_optional with `llvm::Optional<T&>`). Should I commit both, as-is?


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D48348/new/

https://reviews.llvm.org/D48348