--- /dev/null
+// Copyright (C) 2005, 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/>.
+
+// 25.3.4 [lib.alg.merge]
+
+#include <algorithm>
+#include <testsuite_hooks.h>
+#include <testsuite_iterators.h>
+
+using __gnu_test::test_container;
+using __gnu_test::bidirectional_iterator_wrapper;
+using std::inplace_merge;
+
+typedef test_container<int, bidirectional_iterator_wrapper> container;
+
+
+void
+test1()
+{
+ int array[]={1};
+ container con1(array, array);
+ inplace_merge(con1.begin(), con1.end(), con1.end());
+ container con2(array, array + 1);
+ inplace_merge(con2.begin(), con2.end(), con2.end());
+ inplace_merge(con2.begin(), con2.begin(), con2.end());
+}
+
+void
+test2()
+{
+ int array[]={0,2,4,1,3,5};
+ container con(array, array + 6);
+ inplace_merge(con.begin(), con.it(3), con.end());
+ VERIFY(array[0] == 0 && array[1] == 1 && array[2] == 2 &&
+ array[3] == 3 && array[4] == 4 && array[5] == 5);
+}
+
+struct S
+{
+ int a;
+ int b;
+ S(int _a, int _b) : a(_a), b(_b) { }
+ S() { }
+ bool
+ operator<(const S& _s) const
+ { return _s.a < a; }
+};
+
+void
+test3()
+{
+ S s[4];
+ s[0].a = 0;
+ s[1].a = 1;
+ s[2].a = 0;
+ s[3].a = 1;
+ s[0].b = 0;
+ s[1].b = 0;
+ s[2].b = 1;
+ s[3].b = 1;
+ inplace_merge(s, s + 2, s + 4);
+ VERIFY(s[0].b == 0 && s[1].b == 1 && s[2].b == 0 && s[3].b == 1);
+}
+
+int
+main()
+{
+ test1();
+}