1 files changed, 18 insertions, 0 deletions
diff --git a/test/Parser/cxx-invalid-for-range.cpp b/test/Parser/cxx-invalid-for-range.cpp
new file mode 100644
index 000000000000..557c1da209a9
--- /dev/null
+++ b/test/Parser/cxx-invalid-for-range.cpp
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+
+// From PR23057 comment #18 (https://llvm.org/bugs/show_bug.cgi?id=23057#c18).
+
+namespace N {
+  int X[10]; // expected-note{{declared here}}}}
+}
+
+void f1() {
+  for (auto operator new : X); // expected-error{{'operator new' cannot be the name of a variable or data member}}
+                               // expected-error@-1{{use of undeclared identifier 'X'; did you mean 'N::X'?}}
+}
+
+void f2() {
+  for (a operator== :) // expected-error{{'operator==' cannot be the name of a variable or data member}}
+                       // expected-error@-1{{expected expression}}
+                       // expected-error@-2{{unknown type name 'a'}}
+} // expected-error{{expected statement}}