1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/tc1/dr101.C b/gcc/testsuite/g++.dg/tc1/dr101.C
new file mode 100644
index 000000000..0316aaaa7
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tc1/dr101.C
@@ -0,0 +1,30 @@
+// { dg-do compile }
+// Origin: Giovanni Bajo <giovannibajo at gcc dot gnu dot org>
+// DR101: Redeclaration of extern "C" names via using-declarations 
+
+namespace Test1 {
+
+  typedef unsigned int X;
+  extern "C" void f1();
+  namespace N {
+    typedef unsigned int X;
+    extern "C" void f1();
+  }
+  using N::f1; // { dg-bogus "" "redeclaration through 'using' should not be ambiguous" }
+  using N::X;  // { dg-bogus "" "redeclaration through 'using' should not be ambiguous" }
+}
+
+
+namespace Test2 {
+
+  typedef unsigned int X;   // { dg-bogus "X" "" }
+  extern "C" int f2();
+  namespace N {
+    typedef unsigned int X; // { dg-bogus "X" "" }
+    extern "C" int f2();
+  }
+  using namespace N;
+  int i = f2(); // { dg-bogus "" "redeclaration through 'using' should not be ambiguous" }
+  X x;          // { dg-bogus "" "redeclaration through 'using' should not be ambiguous" }
+
+}