// STLport regression testsuite component.

// To compile as a separate example, please #define MAIN.

#include <vector>

#include <numeric>

#include <iterator>

#include <iostream>

#ifdef MAIN 

#define adjdiff2_test main

#endif

static int mult(int a_, int b_)

{

  return a_ * b_;

}

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

using namespace std;

#endif

int adjdiff2_test(int, char**)

{

   cout<<"Results of adjdiff2_test:"<<endl;

  //results of test for comparison

  int res_v[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

  int adj_diff_res[10] = {1, 2, 6, 12, 20, 30, 42, 56, 72,90};

  int failures = 0;  

  vector <int> v(10);

  for(int i = 0; i < v.size(); i++)

    v[i] = i + 1;

  vector <int> rslt(v.size());

  adjacent_difference(v.begin(), v.end(), rslt.begin(), mult);

  ostream_iterator<int> iter(cout, " ");

  copy(v.begin(), v.end(), iter);

  cout << endl;

  copy(rslt.begin(), rslt.end(), iter);

  cout << endl;

  //compare the results

  for(int i = 0; i < v.size(); i++)

  {	

  	if(res_v[i] != v[i])

  		failures++;	

  }

  for(int i = 0; i < rslt.size(); i++)

  {

  	if(adj_diff_res[i] != rslt[i])	

  		failures++;

  }

  if (!failures)

  	  return 0;

  else

  return 1;

}