[PATCH] D88977: Reapply [ADT] function_ref's constructor is unavailable if the argument is not callable.

[Sam McCall via Phabricator via llvm-commits]

sammccall added a comment.

Sorry about the delay.
This is a supported configuration: apple clang toolchain (including libc++) is supposed to work back to 6.0. I'll get this fixed today.

https://llvm.org/docs/GettingStarted.html#host-c-toolchain-both-compiler-and-standard-library


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D88977/new/

https://reviews.llvm.org/D88977