From: David Blaikie <dblaikie@gmail.com>
Date: Mon, 16 Jan 2017 20:28:59 +0000 (+0000)
Subject: Attempt to workaround MSVC build issue where I suspect an enum class constant 0 is... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=758377052dc75d2af56a7cfcce8826ad506e15e3;p=llvm

Attempt to workaround MSVC build issue where I suspect an enum class constant 0 is considered a possible null pointer

I can't reproduce this so far with web compilers, so throwing this at
the bots to see if it sticks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292155 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/ADT/None.h b/include/llvm/ADT/None.h
index 628b3ea8db9..c7a99c61994 100644
--- a/include/llvm/ADT/None.h
+++ b/include/llvm/ADT/None.h
@@ -19,7 +19,8 @@
 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 };
+// (constant value 1 in an attempt to workaround MSVC build issue... )
+enum class NoneType { None = 1 };
 const NoneType None = NoneType::None;
 }