diff -r 000000000000 -r e4d67989cc36 genericopenlibs/cppstdlib/stl/test/unit/nthelm_test.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/cppstdlib/stl/test/unit/nthelm_test.cpp	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,84 @@
+#include <vector>
+#include <algorithm>
+#include <functional>
+
+#include "cppunit/cppunit_proxy.h"
+
+#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
+using namespace std;
+#endif
+
+//
+// TestCase class
+//
+class NthElemTest : public CPPUNIT_NS::TestCase
+{
+  CPPUNIT_TEST_SUITE(NthElemTest);
+  CPPUNIT_TEST(nthelem0);
+  CPPUNIT_TEST(nthelem1);
+  CPPUNIT_TEST(nthelem2);
+  CPPUNIT_TEST_SUITE_END();
+
+protected:
+  void nthelem0();
+  void nthelem1();
+  void nthelem2();
+};
+
+CPPUNIT_TEST_SUITE_REGISTRATION(NthElemTest);
+
+//
+// tests implementation
+//
+void NthElemTest::nthelem0()
+{
+  int numbers[7] = { 5, 2, 4, 1, 0, 3 ,77};
+  nth_element(numbers, numbers + 3, numbers + 6);
+
+  CPPUNIT_ASSERT(numbers[0]==1);
+  CPPUNIT_ASSERT(numbers[1]==0);
+  CPPUNIT_ASSERT(numbers[2]==2);
+  CPPUNIT_ASSERT(numbers[3]==3);
+  CPPUNIT_ASSERT(numbers[4]==4);
+  CPPUNIT_ASSERT(numbers[5]==5);
+}
+void NthElemTest::nthelem1()
+{
+  //6 8 5 1 7 4 1 5 2 6
+  //1 1 4 2 5 5 6 7 8 6
+  int numbers[10] = { 6, 8, 5, 1, 7, 4, 1, 5, 2, 6 };
+
+  vector <int> v1(numbers, numbers+10);
+  nth_element(v1.begin(), v1.begin() + v1.size() / 2, v1.end());
+
+  CPPUNIT_ASSERT(v1[0]==1);
+  CPPUNIT_ASSERT(v1[1]==1);
+  CPPUNIT_ASSERT(v1[2]==4);
+  CPPUNIT_ASSERT(v1[3]==2);
+  CPPUNIT_ASSERT(v1[4]==5);
+  CPPUNIT_ASSERT(v1[5]==5);
+  CPPUNIT_ASSERT(v1[6]==6);
+  CPPUNIT_ASSERT(v1[7]==7);
+  CPPUNIT_ASSERT(v1[8]==8);
+  CPPUNIT_ASSERT(v1[9]==6);
+}
+void NthElemTest::nthelem2()
+{
+  //4 5 4 2 1 7 4 3 1 6
+  //6 7 4 4 5 4 3 2 1 1
+
+  int numbers[10] = { 4, 5, 4, 2, 1, 7, 4, 3, 1, 6 };
+  vector <int> v1(numbers, numbers+10);
+  nth_element(v1.begin(), v1.begin() + v1.size() / 2, v1.end(), greater<int>());
+
+  CPPUNIT_ASSERT(v1[0]==6);
+  CPPUNIT_ASSERT(v1[1]==7);
+  CPPUNIT_ASSERT(v1[2]==4);
+  CPPUNIT_ASSERT(v1[3]==4);
+  CPPUNIT_ASSERT(v1[4]==5);
+  CPPUNIT_ASSERT(v1[5]==4);
+  CPPUNIT_ASSERT(v1[6]==3);
+  CPPUNIT_ASSERT(v1[7]==2);
+  CPPUNIT_ASSERT(v1[8]==1);
+  CPPUNIT_ASSERT(v1[9]==1);
+}