1 files changed, 11 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/other/redecl2.C b/gcc-4.9/gcc/testsuite/g++.dg/other/redecl2.C
new file mode 100644
index 000000000..6c8913c1f
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/other/redecl2.C
@@ -0,0 +1,11 @@
+// PR c++/17816
+// We failed to report duplicate definitions of pure virtual ns.
+
+// { dg-do compile }
+
+struct S {
+  virtual int foo() = 0;
+};
+ 
+int S::foo() { return 0; } // { dg-message "defined here" }
+int S::foo() { return 0; } // { dg-error "redefinition" }