[PATCH] D25100: Add STLExtras apply_tuple

[Zachary Turner via llvm-commits]

zturner created this revision.
zturner added reviewers: mehdi_amini, dblaikie.
zturner added a subscriber: llvm-commits.

This is based on the C++17 `std::apply`.  Given a tuple `std::tuple<Ts...> Tup` and a Callbable `F`, this function invokes `F(Ts...)` and returns the result.


https://reviews.llvm.org/D25100

Files:
  include/llvm/ADT/STLExtras.h
  unittests/ADT/STLExtrasTest.cpp

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