[PATCH] D142738: Warn if _Optional used at top-level of decl

[Christopher Bazley via Phabricator via cfe-commits]

chrisbazley added a comment.

Please refer to https://discourse.llvm.org/t/rfc-optional-a-type-qualifier-to-indicate-pointer-nullability/ and https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3089.pdf for the wider context of this commit.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D142738/new/

https://reviews.llvm.org/D142738