check whether sema issues a redefinition error
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112347 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaTemplate/inject-templated-friend.cpp b/test/SemaTemplate/inject-templated-friend.cpp
index 039f6df..fbe86d9 100644
--- a/test/SemaTemplate/inject-templated-friend.cpp
+++ b/test/SemaTemplate/inject-templated-friend.cpp
@@ -1,4 +1,5 @@
// RUN: %clang %s -S -emit-llvm -o - | grep -e "define linkonce_odr.*_ZlsR11std_ostreamRK8StreamerI3FooE"
+// RUN: %clang -cc1 %s -DREDEFINE -verify
// PR8007: friend function not instantiated.
struct std_ostream
@@ -11,7 +12,7 @@
template <typename STRUCT_TYPE>
struct Streamer
{
- friend std_ostream& operator << (std_ostream& o, const Streamer& f)
+ friend std_ostream& operator << (std_ostream& o, const Streamer& f) // expected-error{{redefinition of 'operator<<'}}
{
Streamer s(f);
s(o);
@@ -26,14 +27,17 @@
typedef struct Foo {} Foo;
-std_ostream& operator << (std_ostream& o, const Streamer<Foo>& f);
-/*std_ostream& operator << (std_ostream& o, const Streamer<Foo>& f)
+std_ostream& operator << (std_ostream&, const Streamer<Foo>&);
+#ifdef REDEFINE
+std_ostream& operator << (std_ostream& o, const Streamer<Foo>&) // expected-note{{is here}}
{
// Sema should flag this as a redefinition
-}*/
+ return o;
+}
+#endif
template <>
-void Streamer<Foo>::operator () (std_ostream& o) const
+void Streamer<Foo>::operator () (std_ostream& o) const // expected-note{{requested here}}
{
}