#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);

}