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-rw-r--r--include/llvm/ADT/None.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/llvm/ADT/None.h b/include/llvm/ADT/None.h
index d69ec17c15f9..c7a99c61994e 100644
--- a/include/llvm/ADT/None.h
+++ b/include/llvm/ADT/None.h
@@ -19,8 +19,9 @@
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 };
-const NoneType None = None;
+// (constant value 1 in an attempt to workaround MSVC build issue... )
+enum class NoneType { None = 1 };
+const NoneType None = NoneType::None;
}
#endif