From e4d4c43cc8f446d63ba3b0e94894f0934c4a9a99 Mon Sep 17 00:00:00 2001
From: Douglas Gregor <dgregor@apple.com>
Date: Thu, 24 Dec 2009 21:11:45 +0000
Subject: [PATCH] Define the new operator<< for sets into namespace std, so
 that argument-dependent lookup can find it. This is another case where an
 LLVM bug (not making operator<< visible) was masked by a GCC bug (looking in
 the global namespace when it shouldn't).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92144 91177308-0d34-0410-b5e6-96231b3b80d8
---
 unittests/ADT/DeltaAlgorithmTest.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/unittests/ADT/DeltaAlgorithmTest.cpp b/unittests/ADT/DeltaAlgorithmTest.cpp
index 362892207f5..a1884cd8f3a 100644
--- a/unittests/ADT/DeltaAlgorithmTest.cpp
+++ b/unittests/ADT/DeltaAlgorithmTest.cpp
@@ -13,6 +13,8 @@
 #include <cstdarg>
 using namespace llvm;
 
+namespace std {
+
 std::ostream &operator<<(std::ostream &OS,
                          const std::set<unsigned> &S) {
   OS << "{";
@@ -26,6 +28,8 @@ std::ostream &operator<<(std::ostream &OS,
   return OS;
 }
 
+}
+
 namespace {
 
 class FixedDeltaAlgorithm : public DeltaAlgorithm {