Make the static instance of None just const.

This way there shouldn't be any unused variable warnings.

llvm-svn: 230010

diff --git a/llvm/include/llvm/ADT/None.h b/llvm/include/llvm/ADT/None.h
index c78db78..d69ec17 100644 (file)
--- a/llvm/include/llvm/ADT/None.h
+++ b/llvm/include/llvm/ADT/None.h
@@ -20,7 +20,7 @@ namespace llvm {
 /// \brief A simple null object to allow implicit construction of Optional<T>
 /// and similar types without having to spell out the specialization's name.
 enum class NoneType { None };
-static NoneType None;
+const NoneType None = None;
 }
 
 #endif