--- /dev/null
+// Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library 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, or (at your option)
+// any later version.
+
+// This library 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 this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-options "-D_GLIBCXX_DEBUG" }
+// { dg-do compile }
+
+// libstdc++/34730
+
+#include <string>
+#include <vector>
+#include <algorithm>
+
+using namespace std;
+
+typedef pair<int, string> intstring;
+
+struct intstrcmp
+{
+ bool
+ operator()(const string& x, const intstring& y) const
+ { return x < y.second; }
+
+ bool
+ operator()(const intstring& x, const string& y) const
+ { return x.second < y; }
+};
+
+void test01()
+{
+ vector<string> vec1;
+ vector<intstring> vec2;
+ vector<intstring> vec3;
+ set_intersection(vec2.begin(), vec2.end(),
+ vec1.begin(), vec1.end(),
+ back_inserter(vec3), intstrcmp());
+}