//
// simple program to test correctness of dynamicArray class.
//
// program takes one command-line argument, the number of 
// elements to be added to / removed from the array.
//

#include <iostream>
#include <stdlib.h>		// has EXIT_SUCCESS
#include "dynamicArray.h"
#include <mcheck.h>		// helps detect memory leaks

int main(int argc, char * argv[]) {
  mtrace();			// turn on memory leak detection
  if (argc < 2) {
    cerr << "Usage:  " << argv[0] << " num_of_elements\n";
    exit(EXIT_FAILURE);
  }
  // convert command-line argument to unsigned int.
  dynamicArray::length_pos max_size = strtoul(argv[1], 
				static_cast<char **>(0), 10);

  dynamicArray a1;

  // test push_back().
  for (dynamicArray::length_pos i = 0; i < max_size; ++i) 
    a1.push_back(2*i+1);

  // show operation counts.
   cout << "Elements added.\n";
   a1.show_op_counts(cout, "a1");

  // test size(), get().
  cout << "array size = " << a1.size() << endl;
  cout << "first element = " << a1.get(0) << endl;
  cout << "last element = " << a1.get(max_size-1) << endl;
  cout << "element " << max_size/2 << " = " << a1.get(max_size/2)
       << endl;

  // test set().
  a1.set(0, -1);
  a1.set(max_size-1, -2);
  a1.set(max_size/2, -3);
  cout << "reset first element = " << a1.get(0) << endl;
  cout << "reset last element = " << a1.get(max_size-1) << endl;
  cout << "reset middle element = " << a1.get(max_size/2) << endl;

  // test copy constructor.
  dynamicArray a2(a1);

  // test pop_back().
  dynamicArray::length_pos i = a2.size();
  while (i > 0) 
    cout << "element " << --i << " = " << a2.pop_back() << endl;
  cout << "after removing elements, size = " << a2.size() << endl;

  // show operation counts.
  a2.show_op_counts(cout, "a2");

  a2.push_back(max_size);
  cout << "reinserted " << a2.get(0) << endl;

  return EXIT_SUCCESS;
}