--- /dev/null
+// Copyright (C) 2007, 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 Pred 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/>.
+
+// 25.2.1 [lib.alg.copy] Copy.
+
+#include <algorithm>
+#include <testsuite_hooks.h>
+
+class Counting_output_iterator
+: public std::iterator< std::output_iterator_tag, void, void, void, void >
+{
+ std::size_t c;
+public:
+ Counting_output_iterator() : c(0) {}
+ Counting_output_iterator& operator++() { return *this; }
+ Counting_output_iterator& operator*() { return *this; }
+
+ template <typename T>
+ void operator=(const T&) { ++c; }
+
+ std::size_t current_counter() const { return c; }
+};
+
+// libstdc++/34595
+void test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ int t[10] = {0,};
+ Counting_output_iterator cnt;
+ std::size_t res = std::copy(t+0, t+5, cnt).current_counter();
+
+ VERIFY( res == 5 );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}