[PATCH] D55520: Refactor std::function to more easily support alternative implementations.

[Jordan Soyke via Phabricator]

jsoyke created this revision.
jsoyke added a reviewer: EricWF.
Herald added subscribers: libcxx-commits, ldionne, christof.

This change adds a new internal class, called __value_func, that adds
a minimal subset of value-type semantics to the internal __func interface.


Repository:
  rCXX libc++

https://reviews.llvm.org/D55520

Files:
  include/functional

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