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-rw-r--r--gcc/testsuite/g++.dg/other/redecl2.C11
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/other/redecl2.C b/gcc/testsuite/g++.dg/other/redecl2.C
new file mode 100644
index 000000000..591c258b8
--- /dev/null
+++ b/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-error "defined here" }
+int S::foo() { return 0; } // { dg-error "redefinition" }