#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 LessTest : public CPPUNIT_NS::TestCase

 {

   CPPUNIT_TEST_SUITE(LessTest);

   CPPUNIT_TEST(lesst);

   CPPUNIT_TEST(lesseqt);

   CPPUNIT_TEST_SUITE_END();

 protected:

   void lesst();

   void lesseqt();

 };

 CPPUNIT_TEST_SUITE_REGISTRATION(LessTest);

 //

 // tests implementation

 //

 void LessTest::lesst()

 {

   int array [4] = { 3, 1, 4, 2 };

   sort(array, array + 4, less<int>());

   CPPUNIT_ASSERT(array[0]==1);

   CPPUNIT_ASSERT(array[1]==2);

   CPPUNIT_ASSERT(array[2]==3);

   CPPUNIT_ASSERT(array[3]==4);

 }

 void LessTest::lesseqt()

 {

   int array [4] = { 3, 1, 4, 2 };

   sort(array, array + 4, less_equal<int>());

   CPPUNIT_ASSERT(array[0]==1);

   CPPUNIT_ASSERT(array[1]==2);

   CPPUNIT_ASSERT(array[2]==3);

   CPPUNIT_ASSERT(array[3]==4);

 }