1 files changed, 45 insertions, 0 deletions
diff --git a/test/CXX/basic/basic.scope/basic.scope.hiding/p2.cpp b/test/CXX/basic/basic.scope/basic.scope.hiding/p2.cpp
index 911df989530f7..1d2b525da4c20 100644
--- a/test/CXX/basic/basic.scope/basic.scope.hiding/p2.cpp
+++ b/test/CXX/basic/basic.scope/basic.scope.hiding/p2.cpp
@@ -22,3 +22,48 @@ void f() {
   Y(1); // okay
 }
 
+namespace PR17731 {
+  void f() {
+    struct S { S() {} };
+    int S(void);
+    int a = S();
+    struct S b;
+    {
+      int S(void);
+      int a = S();
+      struct S c = b;
+    }
+    {
+      struct S { S() {} }; // expected-note {{candidate}}
+      int a = S(); // expected-error {{no viable conversion from 'S'}}
+      struct S c = b; // expected-error {{no viable conversion from 'struct S'}}
+    }
+  }
+  void g() {
+    int S(void);
+    struct S { S() {} };
+    int a = S();
+    struct S b;
+    {
+      int S(void);
+      int a = S();
+      struct S c = b;
+    }
+    {
+      struct S { S() {} }; // expected-note {{candidate}}
+      int a = S(); // expected-error {{no viable conversion from 'S'}}
+      struct S c = b; // expected-error {{no viable conversion from 'struct S'}}
+    }
+  }
+
+  struct A {
+    struct B;
+    void f();
+    int B;
+  };
+  struct A::B {};
+  void A::f() {
+    B = 123;
+    struct B b;
+  }
+}