#include <algorithm>

 #include <functional>

 #include "cppunit/cppunit_proxy.h"

 #if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)

 using namespace std;

 #endif

 //

 // TestCase class

 //

 class BnegateTest : public CPPUNIT_NS::TestCase

 {

   CPPUNIT_TEST_SUITE(BnegateTest);

   CPPUNIT_TEST(bnegate1);

   CPPUNIT_TEST(bnegate2);

   CPPUNIT_TEST_SUITE_END();

 protected:

   void bnegate1();

   void bnegate2();

 };

 CPPUNIT_TEST_SUITE_REGISTRATION(BnegateTest);

 //

 // tests implementation

 //

 void BnegateTest::bnegate1()

 {

   int array [4] = { 4, 9, 7, 1 };

   sort(array, array + 4, binary_negate<greater<int> >(greater<int>()));

   CPPUNIT_ASSERT(array[0]==1);

   CPPUNIT_ASSERT(array[1]==4);

   CPPUNIT_ASSERT(array[2]==7);

   CPPUNIT_ASSERT(array[3]==9);

 }

 void BnegateTest::bnegate2()

 {

   int array [4] = { 4, 9, 7, 1 };

   sort(array, array + 4, not2(greater<int>()));

   CPPUNIT_ASSERT(array[0]==1);

   CPPUNIT_ASSERT(array[1]==4);

   CPPUNIT_ASSERT(array[2]==7);

   CPPUNIT_ASSERT(array[3]==9);

 }