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diff --git a/test/lisp/cedet/semantic-utest-ia-resources/teststruct.cpp b/test/lisp/cedet/semantic-utest-ia-resources/teststruct.cpp
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+++ b/test/lisp/cedet/semantic-utest-ia-resources/teststruct.cpp
@@ -0,0 +1,86 @@
+// teststruct.cpp --- semantic-ia-utest completion engine unit tests
+
+// Copyright (C) 2008-2021 Free Software Foundation, Inc.
+
+// Author: Eric M. Ludlam <zappo@gnu.org>
+
+// This file is part of GNU Emacs.
+
+// GNU Emacs is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// GNU Emacs is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+
+// Note: initially provided by by Alex Ott.
+
+template <typename DerivedT>
+struct grammar {
+public:
+  typedef grammar<DerivedT> self_t;
+  typedef DerivedT const& embed_t;
+  grammar() {}
+  ~grammar() { }
+  void use_parser() const { }
+  void test1() { }
+};
+
+struct PDFbool_parser : public grammar<PDFbool_parser> {
+  PDFbool_parser() {}
+  template <typename scannerT> struct definition {
+    typedef typename scannerT::iterator_t iterator_t;
+    int top;
+    definition(const PDFbool_parser& /*self*/) {
+      return ;
+    }
+    const int start() const {
+      return top;
+    }
+  };
+};
+
+int main(void) {
+  PDFbool_parser PDFbool_p = PDFbool_parser();
+  PDFbool_p.//-1-
+    ;
+  // #1# ("definition" "embed_t" "self_t" "test1" "use_parser")
+}
+
+// ----------------------------------------------------------------------
+
+template <class Derived> struct Base {
+public:
+  void interface()
+  {
+    // ...
+    static_cast<Derived*>(this)->implementation();
+    // ...
+  }
+
+  static void static_func()
+  {
+    // ...
+    Derived::static_sub_func();
+    // ...
+  }
+};
+
+struct Derived : Base<Derived> {
+  void implementation() { }
+  static void static_sub_func() { }
+};
+
+int foo () {
+  Derived d;
+  d.//-2-
+    ;
+  // #2# ("implementation" "interface" "static_func" "static_sub_func")
+}