Solution 06*
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//Project27.cpp to Assign06
//Date 11/07/2001
//* Corrected on 12/07/2001

//Author: Us


////////////////////////////////////////////////////
//includes
////////////////////////////////////////////////////
#include <iostream.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>


////////////////////////////////////////////////////
// constants
////////////////////////////////////////////////////
const int MAX_LEN = 20;

const int UNDEFINED = -99;

const char *testNames[] = 
  {
  "Chair", "Table", "Spoon", "Knife",
  "Phone", "Couch", "Drive", "Mouse", 
  "Clock", "Cable", "Plier", "Paper",
  "Stand", "Stool"
  };

const int testWeights[] =
  {
  11, 22, 33, 44, 55, 66, 
  77, 88, 99, 12, 13, 14, 
  15, 16
  };

const int MAX_NAMES = sizeof(testNames)/sizeof(testNames[0]);

const int MAX_ITEMS = 20;


////////////////////////////////////////////////////
// test functions
////////////////////////////////////////////////////
void testInput(void);
void testSetName(void);
void testSetWeight(void);
void testConstructor(void);
void testConstructorCh(void);
void testConstructorCopy(void);
void testSet(void);
void testOperatorEqual(void);
void testGetName(void);
void testGetWeight(void);
void testOperatorLessThan(void);
void testOperatorAssign(void);
void testOperatorInsertion(void);
void testOperatorExtraction(void);
void testConstructorCInventory(void);
void testConstructor2CInventory(void);
void testConstructor3CInventory(void);
void testSortBubbleCInventory(void);
void testIsSortedCInventory(void);
void testShuffleCInventory(void);
void testOperatorAssignCInventory(void);
void testSortSelectionCInventory(void);
void testSortInsertionCInventory(void);
void testSortByCountingCInventory(void);
void testDisplayDistinctCInventory(void);
void testInsertCInventory(void);
void testRemoveCInventory(void);
void testRemoveDupesCInventory(void);

void testIsEqualToDupesRemoved(void);
void testCopyConstructorCInventory(void);


////////////////////////////////////////////////////
// CItem class
////////////////////////////////////////////////////
class CItem
  {
  private:
    char m_name[MAX_LEN+1];
    int  m_weight;
  public:
    CItem(void); 
    CItem(char name[], int weight); 
    CItem(char ch); 
    CItem(const CItem &item); 
    void input(void);
    void display(void) const;
    void set(char name[], int weight);
    void setName(char name[]);
    void setWeight(int weight);
    char * getName(void);
    int getWeight(void);

    bool operator < (const CItem &i2);
    CItem & operator = (const CItem &i2);

    friend bool operator ==(const CItem &i1, const CItem &i2);
    friend ostream & operator << (ostream &bob, const CItem &item);
    friend istream & operator >> (istream &joe, CItem &item);
  };


////////////////////////////////////////////////////
// CInventory class
////////////////////////////////////////////////////
class CInventory
  {
  private:
    int count;
    CItem items[MAX_ITEMS];
    void swap(CItem &i1, CItem &i2)
      {
      CItem tempItem;
      tempItem = i1;
      i1 = i2;
      i2 = tempItem;
      };
    
  public:
    CInventory(void);
    CInventory(int n);
    CInventory(char ch);
    CInventory(const CInventory &inv);
    ~CInventory(void){};
    void sortBubble(void);
    bool isSorted(void);
    void shuffle(void);
    void sortSelection(void);
    void sortInsertion(void);
    void sortByCounting(void);
    void displayDistinct(void);
    bool insert(const CItem &item); //11/02/2001
    bool remove(int index);         //11/05/2001
    int removeDupes(void);          //11/07/2001

    CInventory & operator = (const CInventory &inv2);
    bool operator == (const CInventory &inv2);
    bool operator != (const CInventory &inv2);
    friend ostream & operator << (ostream &bob, const CInventory &inv);
    friend istream & operator >> (istream &joe, CInventory &inv);

    //assign06
    bool isEqualToDupesRemoved(const CInventory &inv);
  };

    
////////////////////////////////////////////////////
// main function
////////////////////////////////////////////////////
void main(void)
  {
  srand( (unsigned)time( NULL ) );

  //testInput();
  //testConstructor();
  //testConstructorCh();
  //testConstructorCopy();
  //testSetName();
  //testSetWeight();
  //testSet();
  //testOperatorEqual();
  //testGetName();
  //testGetWeight();
  //testOperatorLessThan();
  //testOperatorAssign();
  //testOperatorInsertion();
  //testOperatorExtraction();
  //mainProject03();
  //testConstructorCInventory();
  //testConstructor2CInventory();
  //testConstructor3CInventory();
  //testSortBubbleCInventory();
  //testIsSortedCInventory();
  //testShuffleCInventory();
  //testSortSelectionCInventory();
  //testSortInsertionCInventory();
  //testSortByCountingCInventory();
  //testOperatorAssignCInventory();
  //testDisplayDistinctCInventory();
  //testInsertCInventory();
  //testRemoveCInventory();
  //testRemoveDupesCInventory();
  testIsEqualToDupesRemoved();
  //testCopyConstructorCInventory();

  }


////////////////////////////////////////////////////
//CInventory::CInventory(const CInventory &inv)
////////////////////////////////////////////////////
CInventory::CInventory(const CInventory &inv)
  {
  this->count = inv.count;
  for (int i=0; i<this->count; i++)
    this->items[i] = inv.items[i];
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testCopyConstructorCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testCopyConstructorCInventory(void)
  {
  cout << "testCopyConstructorCInventory\n";
  cout << "============================\n";
  for (int i=1; i<=5; i++)
    {
    CInventory yourInv('r');
    CInventory myInv(yourInv);

    cout << "yourInv = " << yourInv << endl;
    cout << "myInv   = " << myInv << endl;
    cout << "----------------------\n";
    }
  }


////////////////////////////////////////////////////
// bool CInventory::isEqualToDupesRemoved(const CInventory &inv)
////////////////////////////////////////////////////
/*
test1.	count of originalInv should be >= the distinctInv
test2.	distinctInv should not have duplicate records
test3.	for every record in originalInv there must be only 
        one matching record in distinctInv
test4.	for every record in distinctInv there must one or 
        more matching records in originalInv
test5.	sum of occurrences of matching records each record 
        from distinctInv in originalInv should be equal to 
        the total records in originalInv.
*/
////////////////////////////////////////////////////
bool CInventory::isEqualToDupesRemoved(const CInventory &inv)
  {
  bool allPassed = true;
  bool thisPassed;

  //test1.	count of originalInv should be >= the distinctInv
  {
  if (this->count >= inv.count)
    cout << "test1: passed\n";
  else
    {
    allPassed = false;
    cout << "test1: failed\n";
    }
  }

  //test2.	distinctInv should not have duplicate records
  {
  thisPassed = true;
  int i, j;
  for (i=0; i<inv.count-1; i++)
    {
    for (j=i+1; j<inv.count; j++)  //correction made 12/7/2001
      if (inv.items[i] == inv.items[j])
        {
        allPassed = false;
        thisPassed = false;
        break;
        }
    if (!thisPassed) break;
    }

  if (thisPassed)
      cout << "test2: passed\n";
    else
      cout << "test2: failed\n";
  }
  
  //test3.	for every record in originalInv there must be only 
  //        one matching record in distinctInv
  {
  thisPassed = true;
  int i, j, copies;
  for (i=0; i<this->count; i++)
    {
    copies = 0;
    for (j=0; j<inv.count; j++)
      if (this->items[i] == inv.items[j])
        copies++;

    if (copies != 1)
      {
      thisPassed = false;
      allPassed = false;
      break;
      }
    }

  if (thisPassed)
      cout << "test3: passed\n";
    else
      cout << "test3: failed\n";
  }
  
  //test4.	for every record in distinctInv there must one or 
  //        more matching records in originalInv
  {
  thisPassed = true;
  int i, j, copies;
  for (i=0; i<inv.count; i++)
    {
    copies = 0;
    for (j=0; j<this->count; j++)
      if (inv.items[i] == this->items[j])
        copies++;

    if (copies < 1)
      {
      thisPassed = false;
      allPassed = false;
      break;
      }
    }

  if (thisPassed)
      cout << "test4: passed\n";
    else
      cout << "test4: failed\n";
  }

  //test5.	sum of occurrences of matching records each record 
  //        from distinctInv in originalInv should be equal to 
  //        the total records in originalInv.
  {
  thisPassed = true;
  int i, j, total;
  total = 0;
  for (i=0; i<inv.count; i++)
    {
    for (j=0; j<this->count; j++)
      if (inv.items[i] == this->items[j])
        total++;
    }

    if (total != this->count)
      {
      thisPassed = false;
      allPassed = false;
      }

  if (thisPassed)
      cout << "test5: passed\n";
    else
      cout << "test5: failed\n";
  }

  return allPassed;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testIsEqualToDupesRemoved(void);
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testIsEqualToDupesRemoved(void)
  {
  for (int i=1; i<=10; i++)
    {
      {
      cout << "===================================\n";
      cout << "Test Case#:" << i << endl;
      cout << "===================================\n";

      CInventory originalInv('r');
      CInventory distinctInv(originalInv);

      cout << "originalInv =\n";
      cout << originalInv << endl;

      distinctInv.removeDupes();

      cout << "distinctInv=\n";
      cout << distinctInv;

      if (originalInv.isEqualToDupesRemoved(distinctInv))
          cout << "distinctInv has only distinct records\n";
        else
          cout << "distinctInv does not have distinct records\n";
      }

      {
      CInventory originalInv('r');
      CInventory distinctInv('r');

      cout << "\noriginalInv =\n";
      cout << originalInv << endl;

      cout << "distinctInv=\n";
      cout << distinctInv;

      if (originalInv.isEqualToDupesRemoved(distinctInv))
          cout << "distinctInv has only distinct records\n";
        else
          cout << "distinctInv does not have distinct records\n";

      }

    cout << "-----------------------------------\n";
    }
  }


////////////////////////////////////////////////////
//int CInventory::removeDupes(void)
////////////////////////////////////////////////////
/*
  Removes duplicate records from the object
  returns the number of records removed

  [12, 22, 19, 19, 22, 12]
  [12, 22, 19, 22, 12]
  [12, 22, 19]

  Algorithm0:
  Go from left to right deleting duplicates

  Algorithm1:
  i=0
  Shoot dupes from j=i+1 to count-1
  i=i+1
  goto Shoot statement if i<count-1

  Algorithm2:
  i=0
  while i < count-1
    Shoot dupes from j=i+1 to count-1
    i=i+1
    end while

  [66 25 19]
    0  1  2
    count=3
  i  j  
  0  1..2
  1  2..2
  2 

  Algorithm3:
  i=0
  countRemoved=0
  while i < count-1
    //Shoot dupes from j=i+1 to count-1
    for j=i+1 to count-1
      if items[i] = items[j] then
        remove(j)
        increase countRemoved by 1
        end if

    i=i+1
    end while

*/
////////////////////////////////////////////////////
int CInventory::removeDupes(void)
  {
  int i=0, j;
  int countRemoved = 0;

  while (i < this->count-1)
    {
    //Shoot dupes from j=i+1 to count-1
    j=i+1; 
    while (j<=this->count-1)
      {
      if (items[i] == items[j])
          {
          this->remove(j);
          countRemoved++;
          }
        else
          j++;
      }

    i++;
    }
  return countRemoved;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testRemoveCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testRemoveDupesCInventory(void)
  {
  cout << "testRemoveDupesCInventory\n";
  cout << "=========================\n";
  for (int i=0; i<=5; i++)
    {
    CInventory yourInv('r');

    cout << "Original\n";
    cout << yourInv;


    cout << "Removed " << yourInv.removeDupes() << endl;

    cout << yourInv;

    cout << "-------------------\n";
    }

  }


////////////////////////////////////////////////////
// CInventory::remove(int index)
////////////////////////////////////////////////////
/* 
  delete the item at index in range (0..count-1)
  Possibilities:
    index > count-1
    index < 0
    index >= 0 and <=count-1

Version 0:

  if index is out of range then 
    return false
  else
    delete item at index position
    return true
  end if


Version 1:

  if index <0 or index > count-1
    return false
  else
    //delete item at index position
    for i=index to count-2
      items[i] = items[i+1]
      end for

    items[count-1] = nothing
    count--
    return true
  end if

*/
////////////////////////////////////////////////////
bool CInventory::remove(int index)
  {
  if ((index <0) || (index > this->count-1))
    return false;
  else
    //delete item at index position
    {
    for (int i=index; i<=this->count-2; i++)
      items[i] = items[i+1];

    CItem nullItem;
    items[count-1] = nullItem;
    this->count--;
    return true;
    }

  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testRemoveCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testRemoveCInventory(void)
  {
  cout << "testRemoveCInventory\n";
  cout << "====================\n";
  for (int i=0; i<=5; i++)
    {
    CInventory yourInv('r');

    cout << "Original\n";
    cout << yourInv;

    int index = rand()%10;
    cout << "Attempting to remove item at "<< index << endl;

    if(yourInv.remove(index))
        cout << "Removed\n";
      else
        cout << "Not removed\n";

    cout << yourInv;

    cout << "-------------------\n";
    }

  }


////////////////////////////////////////////////////
// bool CInventory::insert(const CItem &item)
////////////////////////////////////////////////////
  /*insert item to inventory

  if count = MAX_ITEMS then return false
  items[count] = item
  count++
  return true
  */
////////////////////////////////////////////////////
bool CInventory::insert(const CItem &item) //11/02/2001
  {
  if (MAX_ITEMS == count)
       return false;
    else
      {
      items[count] = item;
      count++;
      return true;
      }
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testInsertCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testInsertCInventory(void)
  {
  cout << "testInsertCInventory\n";
  cout << "====================\n";
  for (int i=0; i<=5; i++)
    {
    CInventory *invPtr;

    if (rand()%2)
        invPtr = new CInventory('r');
      else
        invPtr = new CInventory(MAX_ITEMS);

    cout << "Original\n";
    cout << *invPtr;
    
    CItem item('r');

    if(invPtr->insert(item))
        cout << "success\n";
      else
        cout << "OVERFLOW\n";

    cout << "After inserting " << item;
    cout << *invPtr;

    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
//  void displayDistinct(void);
////////////////////////////////////////////////////
/*
input: [23, 21, 23, 13, 21, 21, 16, 13]
output:[23, 21, 13, 16]

Algorithm0:
display the first value
From 2nd to last display if not displayed

Algorithm1:
display items[0]
for i=1 to count-1 do the following
  display items[i] if not displayed

Algorithm2:
display items[0]
for i=1 to count-1 do the following
  display items[i] if it does not match with any previous value

Algorithm3:
display items[0]
for i=1 to count-1 do the following
  if items[i] <> items[0..i-1] then display it


Algorithm4:
display items[0]
for i=1 to count-1 do the following
  visited = false
  for j=0 to i-1 do the following
    if items[i] = items[j] then visited = true
    end for
  if not visited then display items[i]
  end for

Algorithm5:
display items[0]
for i=1 to count-1 do the following
  visited = false
  for j=0 to i-1 do the following
    if items[i] = items[j] then 
      visited = true
      get out of this for loop
      end if
    end for
  if not visited then display items[i]
  end for

Algorithm6:
if count <= 0 exit function
display items[0]
for i=1 to count-1 do the following
  visited = false
  for j=0 to i-1 do the following
    if items[i] = items[j] then 
      visited = true
      get out of this for loop
      end if
    end for
  if not visited then display items[i]
  end for

Algorithm7:
for i=0 to count-1 do the following
  visited = false
  for j=0 to i-1 do the following
    if items[i] = items[j] then 
      visited = true
      get out of this for loop
      end if
    end for
  if not visited then display items[i]
  end for

*/
////////////////////////////////////////////////////
void CInventory::displayDistinct(void)
  {
  for (int i=0; i<=count-1; i++)
    {
    bool visited = false;
    for(int j=0; j<=i-1; j++)
      if (items[i] == items[j]) 
        {
        visited = true;
        break;
        }

    if (!visited) cout << items[i];
    }
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testDisplayDistinctCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testDisplayDistinctCInventory(void)
  {
  cout << "testDisplayDistinctCInventory\n";
  cout << "=============================\n";
  for (int i=0; i<=5; i++)
    {
    CInventory yourInv('r');

    cout << "Original\n";
    cout << yourInv;
    
    cout << "DIstinct\n";
    yourInv.displayDistinct();

    cout << "-------------------\n";
    }

  for (i=0; i<=5; i++)
    {
    CInventory *invPtr;

    invPtr = new CInventory('r');

    cout << "Original\n";
    cout << invPtr << endl;
    cout << *invPtr;

    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
//void sortByCounting(void);
////////////////////////////////////////////////////
//Sorting by counting
/*
items[] = [66, 37, 29, 28, 61, 98]
counts[]= { 0,  0,  0,  0,  0,  0}

[66, 37, 29, 28, 61, 98]
{ 0,  0,  0,  0,  0,  0}

[66, 37, 29, 28, 61, 98]
{ 4,  0,  0,  0,  0,  1}

[66, [37, 29, 28, 61, 98]
{ 4, [2,  0,  0,  1,  2}

[66, 37, [29, 28, 61, 98]
{ 4, 2,  [1,  0,  2,  3}

[66, 37, 29, [28, 61, 98]
{ 4, 2,  1,  [0,  3,  4}

[66, 37, 29, 28, [61, 98]
{ 4, 2,  1,  0,  [3,  5}

[66, 37, 29, 28, 61, 98] is items[]
{ 4, 2,  1,  0,  3,  5}  is counts[]


place values based on counts
[28, 29, 37, 61, 66, 98] is tItems[]
  0   1   2   3   4   5 

Version 0:
Initialize the counts[]
Update the counts[] by incrementing
Place values in a new list based on counts[]
Copy new list to old list

Version 1:
//Initialize the counts[]
  for i=0 to count-1
    counts[i] = 0

//Update the counts[] by incrementing
  for i=0 to count-2
    for j=i+1 to count-1
      if items[i] > items[j] then
          counts[i]++
        else
          counts[j]++
        end if
      end for
    end for

//Place values in a tItems[] based on counts[]
  for i=0 to count-1
    tItems[counts[i]] = items[i]
    end for
  
//Copy new list to old list
  for i=0 to count-1
    items[i] = tItems[i]
    end for

*/
////////////////////////////////////////////////////
void CInventory::sortByCounting(void)
  {
//Initialize the counts[]
  int counts[MAX_ITEMS];

  for (int i=0; i<=count-1; i++)
    counts[i] = 0;

  int k;
  cout << "counts[]: ";
  for (k=0; k<=count-1; k++)
    cout << counts[k] << ' ';
  cout << endl;

//Update the counts[] by incrementing
  int j;

  for (i=0; i<=count-2; i++) //because last value is lonely
    for (j=i+1; j<=count-1; j++)
      {
      if (items[j] < items[i])
          counts[i]++;
        else
          counts[j]++;

      cout << "counts[]: ";
      for (k=0; k<=count-1; k++)
        cout << counts[k] << ' ';
      cout << endl;
      }

//Place values in a tItems[] based on counts[]
  CItem tItems[MAX_ITEMS];

  for (i=0; i<=count-1; i++)
    tItems[counts[i]] = this->items[i];
  
//Copy new list to old list
  for (i=0; i<=count-1; i++)
    this->items[i] = tItems[i];

  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testSortByCountingCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testSortByCountingCInventory(void)
  {
  cout << "testSortByCountingCInventory\n";
  cout << "============================\n";
  for (int i=0; i<=5; i++)
    {
    CInventory yourInv('r');

    cout << yourInv;

    cout << "After sortByCounting\n";
  
    yourInv.sortByCounting();
    cout << yourInv;

    if (yourInv.isSorted())
        cout << "SORTED\n";
      else
        cout << "NOT SORTED NOT SORTED\n";

    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
//void CInventory::sortInsertion(void)
////////////////////////////////////////////////////
/*
/* Algorithm:
[66], 37, 29, 28, 61, 98
[37, 66], 29, 28, 61, 98
[29, 37, 66], 28, 61, 98
[28, 29, 37, 66], 61, 98
[28, 29, 37, 61, 66], 98
[28, 29, 37, 61, 66, 98]

Version 0:
---------
if count <= 1 then exit function
do the following count-1 times using i=1 to count-1
  insert the ith value s.t. items[0..i] are sorted

Version 1:
---------
if count <= 1 then exit function
do the following count-1 times using i=1 to count-1
  //insert the ith value s.t. items[0..i] are sorted
  k = i
  step1:
  if item[k] >= items[k-1] then exit for
    else
     swap items[k], items[k-1]
     k = k-1
     if k > 0 then goto step1:

Version 2:
---------
if count <= 1 then exit function
do the following count-1 times using i=1 to count-1
  //insert the ith value s.t. items[0..i] are sorted
  k = i
  do
    {
    if item[k] >= items[k-1] then 
        exit do (inner)
      else
        swap items[k], items[k-1]
        k = k-1
      end if
    }
    while (k>0)
  end do (outer)


Version 3:
---------
if count <= 1 then exit function
do the following count-1 times using i=1 to count-1
  //insert the ith value s.t. items[0..i] are sorted
  k = i
  while k > 0
    if item[k] >= items[k-1] then 
        exit do (inner)
      else
        swap items[k], items[k-1]
        k = k-1
      end if
    end while
  end do (outer)


Version 4:
---------
do the following count-1 times using i=1 to count-1
  //insert the ith value s.t. items[0..i] are sorted
  k = i
  while k > 0
    if item[k] >= items[k-1] then 
        exit do (inner)
      else
        swap items[k], items[k-1]
        k = k-1
      end if
    end while
  end do (outer)

*/
////////////////////////////////////////////////////
void CInventory::sortInsertion(void)
  {
  int k;

  for (int i=1; i<= count-1; i++)
    {
    k = i;
    while (k > 0)
      {
      if (!(items[k] < items[k-1]))  
          break;
        else
          {
          swap(items[k], items[k-1]);
          k = k-1;
          }
      }
    }
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testSortInsertionCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testSortInsertionCInventory(void)
  {
  cout << "testSortInsertionCInventory\n";
  cout << "===========================\n";
  for (int i=0; i<=5; i++)
    {
    CInventory yourInv('r');

    cout << yourInv;

    cout << "After sortInsertion\n";

    yourInv.sortInsertion();
    cout << yourInv;

    if (yourInv.isSorted())
        cout << "SORTED\n";
      else
        cout << "NOT SORTED NOT SORTED\n";

    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
//void CInventory::sortSelection(void)
/* Algorithm:
[66, 37, 29, 28, 61]
[61, 37, 29, 28] 66
[28, 37, 29,] 61 66
[28, 29,] 37, 61 66
[28,]29,  37, 61 66

Version #0
Given: items[0..count-1]
n = count
do the following count-1 times
  put the index of the max value in iMax
  swap items[iMax], items[n-1]
  n = n-1
  end do

Version #1
Given: items[0..count-1]
n = count
do the following count-1 times
  //put the index of the max value in iMax
  iMax = 0
  do the following n-1 times using k=1 to n-1
    if items[k] > items[iMax] then
      iMax = k
      end if
    end do
  swap items[iMax], items[n-1]
  cout << *this
  n = n-1
  end do
  
testSortSelection
do the following 5 times
  CInventory testInv('r')
  display "Original inv"
  display testInv
  tetInv.sortSelection()
  display "Sorted inv"
  end do

*/
////////////////////////////////////////////////////
// sortSelection(void)
////////////////////////////////////////////////////
void CInventory::sortSelection(void)
  {
  int n = this->count; 
  int k;
  for (int i=1; i<=this->count-1; i++)
    {
    //put the index of the max value in iMax
    int iMax = 0;
    for (k=1; k<=n-1; k++)
      if ( items[iMax] < items[k])
        iMax = k;
    swap(items[iMax], items[n-1]);
    n = n-1;
    }
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testSortSelectionCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testSortSelectionCInventory(void)
  {
  cout << "testSortSelectionCInventory\n";
  cout << "===========================\n";
  for (int i=0; i<=5; i++)
    {
    CInventory yourInv('r');

    cout << yourInv;

    cout << "After sortSelection\n";

    yourInv.sortSelection();
    cout << yourInv;

    if (yourInv.isSorted())
        cout << "SORTED\n";
      else
        cout << "NOT SORTED NOT SORTED\n";

    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
// operator =
////////////////////////////////////////////////////
CInventory & CInventory::operator = (const CInventory &inv2)
  {
  this->count = inv2.count;
  for (int i=0; i<this->count; i++)
    this->items[i] = inv2.items[i];

  return *this;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testOperatorAssignCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testOperatorAssignCInventory(void)
  {
  cout << "testOperatorAssignCInventory\n";
  cout << "============================\n";
  for (int i=1; i<=5; i++)
    {
    CInventory yourInv('r');
    CInventory myInv('R');
    CInventory hisInv('r');

    cout << "yourInv = " << yourInv << endl;
    cout << "myInv   = " << myInv << endl;
    cout << "hisInv  = " << hisInv << endl;

    yourInv = myInv = hisInv;

    cout << "After yourInv = myInv = hisInv;\n";

    cout << "yourInv = " << yourInv << endl;
    cout << "myInv   = " << myInv << endl;
    cout << "hisInv  = " << hisInv << endl;
    cout << "----------------------\n";
    }
  }


////////////////////////////////////////////////////
// shuffle function
////////////////////////////////////////////////////
void CInventory::shuffle(void)
  {
  if (this->count <= 1)
    return;

  CItem tempItem;
  int pick1, pick2;

  for (int i=1; i<=2*this->count; i++)
    {
    pick1 = rand()%this->count;
    pick2 = rand()%this->count;

    swap(items[pick1], items[pick2]);
    /*
    tempItem = items[pick1];
    items[pick1] = items[pick2];
    items[pick2] = tempItem;
    */
    }
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testShuffleCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testShuffleCInventory(void)
  {
  cout << "testShuffleCInventory\n";
  cout << "=====================\n";
  for (int i=0; i<=5; i++)
    {
    CInventory yourInv('r');

    cout << yourInv;
    if (yourInv.isSorted())
        cout << "SORTED\n";
      else
        cout << "NOT SORTED NOT SORTED\n";

    cout << "After sortBubble\n";

    yourInv.sortBubble();
    cout << yourInv;
    if (yourInv.isSorted())
        cout << "SORTED\n";
      else
        cout << "NOT SORTED NOT SORTED\n";

    cout << "After shuffle\n";

    yourInv.shuffle();
    cout << yourInv;
    if (yourInv.isSorted())
        cout << "SORTED\n";
      else
        cout << "NOT SORTED NOT SORTED\n";

    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
// isSorted function
////////////////////////////////////////////////////
bool CInventory::isSorted(void)
  {
  for (int i=0; i<=count-2; i++)
    if (items[i+1] < items[i]) 
      return false;

  return true;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testIsSortedCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testIsSortedCInventory(void)
  {
  cout << "testIsSortedCInventory\n";
  cout << "======================\n";
  for (int i=0; i<=5; i++)
    {
    CInventory yourInv('r');

    cout << yourInv;
    if (yourInv.isSorted())
        cout << "SORTED\n";
      else
        cout << "NOT SORTED NOT SORTED\n";

    cout << "After sortBubble\n";

    yourInv.sortBubble();
    cout << yourInv;
    if (yourInv.isSorted())
        cout << "SORTED\n";
      else
        cout << "NOT SORTED NOT SORTED\n";

    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
// sortBubble function
////////////////////////////////////////////////////
void CInventory::sortBubble(void)
  {
  bool sorted;
  int i;
  CItem tempItem;

  do 
    {
    sorted = true;
    for (i=0; i<=count-2; i++)
      {
      if (items[i+1] < items[i])
          {
          //use swap
          tempItem = items[i];
          items[i] = items[i+1];
          items[i+1] = tempItem;
          sorted = false;
          }
      }
    }
    while (!sorted);

  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testSortBubbleCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testSortBubbleCInventory(void)
  {
  cout << "testSortBubbleCInventory\n";
  cout << "========================\n";
  for (int i=0; i<=5; i++)
    {
    CInventory yourInv('r');

    cout << yourInv;

    cout << "After sortBubble\n";

    yourInv.sortBubble();
    cout << yourInv;
    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
// construct inventory of random random items
////////////////////////////////////////////////////
CInventory::CInventory(char ch)
  {
  if (('r' == ch) || ('R' == ch))
    {
    this->count = rand()%MAX_ITEMS;

    for (int i=0; i<=this->count-1; i++)
      {
      CItem item('r');
      this->items[i] = item;
      }
    }
  else
    this->count =0;

  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testConstructor3CInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testConstructor3CInventory(void)
  {
  cout << "testConstructor3CInventory\n";
  cout << "=========================\n";
  for (int i=1; i<=5; i++)
    {
    CInventory yourInv('r');
    CInventory myInv('R');
    CInventory hisInv('s');

    cout << yourInv;
    cout << endl;
    cout << myInv;
    cout << endl;
    cout << hisInv;
    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
// construct inventory of n random items
////////////////////////////////////////////////////
CInventory::CInventory(int n)
  {
  if (n < 0) 
    n = -n;

  this->count = n;

  for (int i=0; i<=n-1; i++)
    {
    CItem item('r');
    this->items[i] = item;
    }

  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testConstructor2CInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testConstructor2CInventory(void)
  {
  cout << "testConstructor2CInventory\n";
  cout << "=========================\n";
  for (int i=-1; i<=5; i++)
    {
    CInventory yourInv(i);
    cout << yourInv;
    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
// operator << overloaded for CInventory
////////////////////////////////////////////////////
ostream & operator << (ostream &bob, const CInventory &inv)
  {
  bob << "inventory(" << inv.count << ")=\n";

  for (int i=0; i<=inv.count-1; i++)
    bob << inv.items[i];

  return bob;
  }


////////////////////////////////////////////////////
// default constructor for CInventory
////////////////////////////////////////////////////
CInventory::CInventory(void)
  {
  count = 0;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testConstructorCInventory
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testConstructorCInventory(void)
  {
  cout << "testConstructorCInventory\n";
  cout << "=========================\n";
  for (int i=1; i<=5; i++)
    {
    CInventory yourInv;
    cout << yourInv;
    cout << "-------------------\n";
    }
  }


////////////////////////////////////////////////////
//overload >> for CItem
////////////////////////////////////////////////////
istream & operator >> (istream &joe, CItem &item)
  {
  cout << "item m_name:   ";
  joe >> item.m_name;
  cout << "item m_weight: ";
  joe >> item.m_weight;
  return joe;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// test operator >>
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testOperatorExtraction(void)
  {
  cout << "Test operator >>\n";
  cout << "=================\n";
  for (int i=1; i<=5; i++)
    {
    CItem item1;

    cin >> item1;
    cout << item1;

    cout << "---------------------------\n";
    }
  }


////////////////////////////////////////////////////
//overload << for CItem
////////////////////////////////////////////////////
ostream & operator << (ostream &bob, const CItem &item)
  {
  bob << '[' << item.m_name << ", ";
  bob << item.m_weight << ']' << endl;
  return bob;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// test operator <<
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testOperatorInsertion(void)
  {
  cout << "Test operator <<\n";
  cout << "=================\n";
  for (int i=1; i<=5; i++)
    {
    CItem item1('r');

    cout << "item1 = "; item1.display();
    cout << "item1 = " << item1 << endl;

    cout << item1 << item1;

    cout << "---------------------------\n";
    }
  }


////////////////////////////////////////////////////
// operator = overloaded
////////////////////////////////////////////////////
CItem & CItem::operator = (const CItem &i2)
  {
  strcpy(m_name, i2.m_name);
  this->m_weight = i2.m_weight;
  return *this;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testOperatorAssign
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testOperatorAssign(void)
  {
  cout << "Test operator =\n";
  cout << "===============\n";
  for (int i=1; i<=5; i++)
    {
    CItem item1('r'), item2('r'), item3('r');

    cout << "item1 = "; item1.display();
    cout << "item2 = "; item2.display();
    cout << "item3 = "; item3.display();

    item1 = item2 = item3;
    //item1.operator= (item2.operator= item3);
    //item1.operator = (item2.operator = (item3));
    item2.operator = (item3);
    item1.operator = (item2);

    cout << "After item1 = item2 = item3;\n";
    cout << "item1 = "; item1.display();
    cout << "item2 = "; item2.display();
    cout << "item3 = "; item3.display();

    cout << "---------------------------\n";
    }
  }


////////////////////////////////////////////////////
// operator < overloaded  for CItem class objects
// returns true if weight of i1 is less than that of i2
// else returns false
////////////////////////////////////////////////////
bool CItem::operator < (const CItem &i2)
  {
  return (this->m_weight < i2.m_weight); 
  
  /*
  if (this->m_weight < i2.m_weight) 
      return true;
    else
      return false;
  */
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testOperatorLessThan
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testOperatorLessThan(void)
  {
  cout << "Test operator <\n";
  cout << "===============\n";
  for (int i=1; i<=5; i++)
    {
    CItem item1('r'), item2('r'), item3('r');

    cout << "item1 = "; item1.display();
    cout << "item2 = "; item2.display();
    cout << "item3 = "; item3.display();

    if (item1 < item2)
        cout << "item1 is lighter than item2\n";
      else
        cout << "item1 is not lighter than item2\n";

    if (item1 < item3)
        cout << "item1 is lighter than item3\n";
      else
        cout << "item1 is not lighter than item3\n";

    cout << "---------------------------\n";
    }
  }


////////////////////////////////////////////////////
// getWeight
// returns the weight
////////////////////////////////////////////////////
int CItem::getWeight(void)
  {
  return m_weight;
  };


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testGetWeight
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testGetWeight(void)
  {
  cout << "test getWeight\n";
  for (int i=1; i<=5; i++)
    {
    CItem i('r');

    cout << "item = "; i.display();

    cout << "weight = " << i.getWeight() << endl;
    cout << "-----------------------------\n";
    }
  }


////////////////////////////////////////////////////
// getName
// returns the name
////////////////////////////////////////////////////
char * CItem::getName(void)
  {
  return m_name;
  };


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testGetName
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testGetName(void)
  {
  cout << "test getName\n";
  for (int i=1; i<=5; i++)
    {
    CItem i('r');

    cout << "item = "; i.display();

    cout << "name = " << i.getName() << endl;
    cout << "-----------------------------\n";
    }
  }


////////////////////////////////////////////////////
// operator ==
// compares two items for equality
////////////////////////////////////////////////////
bool operator ==(const CItem &i1, const CItem &i2)
  {
  //return (c1&&c2);

  if (i1.m_weight != i2.m_weight) 
      return false;

  if (strcmp(i1.m_name, i2.m_name) != 0) 
      return false;

  return true;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testOperatorEqual
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testOperatorEqual(void)
  {
  cout << "Test operator equal\n";
  cout << "===================\n";
  for (int i=1; i<=5; i++)
    {
    CItem item1('r'), item2('r'), item3(item1);

    cout << "item1 = "; item1.display();
    cout << "item2 = "; item2.display();
    cout << "item3 = "; item3.display();

    if (item1 == item2)
        cout << "item1 is equal to item2\n";
      else
        cout << "item1 is not equal to item2\n";

    if (item1 == item3)
        cout << "item1 is equal to item3\n";
      else
        cout << "item1 is not equal to item3\n";


    cout << "---------------------------\n";
    }
  }


////////////////////////////////////////////////////
// setWeight(int weight)
// sets the m_weight data member to weight
////////////////////////////////////////////////////
void CItem::setWeight(int weight)
  {
  m_weight = weight;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testSetWeight
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testSetWeight(void)
  {
  cout << "Test setWeight(weight)\n";
  for (int i=1; i<=5; i++)
    {
    CItem item('r');
    item.display();

    int tWeight = rand()%100;

    cout << "tWeight = " << tWeight  << endl;

    item.setWeight(tWeight);

    cout << "After item1.setWeight(tWeight);\n";
    item.display();
    cout << "---------------------------\n";
    }
  }


////////////////////////////////////////////////////
// setName(char name)
// sets the m_name data member to name
////////////////////////////////////////////////////
void CItem::setName(char name[])
  {
  strcpy(m_name, name);
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testSetName
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testSetName(void)
  {
  cout << "Test setName(name)\n";
  for (int i=1; i<=5; i++)
    {
    CItem item('r');
    item.display();

    int i = rand()%MAX_NAMES;
    char tName[MAX_LEN+1];
    strcpy(tName, testNames[i]);

    cout << "tName = \"" << tName << "\"" << endl;

    item.setName(tName);

    cout << "After item1.setName(tName);\n";

    item.display();
    cout << "---------------------------\n";
    }
  }


////////////////////////////////////////////////////
//CItem (item) copy constructor
// constructs an object which is a copy given object
////////////////////////////////////////////////////
CItem::CItem(const CItem &item)
  {
  strcpy(this->m_name, item.m_name);
  this->m_weight = item.m_weight;
  //(*this).m_weight = item.m_weight;
  //cout << "copy constructor called\n";
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testConstructorCopy
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testConstructorCopy(void)
  {
  cout << "Test copy Constructor\n";
  for (int i=1; i<=5; i++)
    {
    CItem item1('r');
    CItem item2(item1);
    item1.display();
    item2.display();
    }
  }


////////////////////////////////////////////////////
//CItem (ch) constructor
// constructs an object with random name and weight
////////////////////////////////////////////////////
CItem::CItem(char ch)
  {
  if ('r' == ch )
      {
      int i = rand()%MAX_NAMES;
      strcpy(m_name, testNames[i]);
      m_weight = testWeights[i];
      }
    else
      {
      strcpy(m_name, "");
      m_weight = -99;
      }
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testConstructorCh
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testConstructorCh(void)
  {
  cout << "Test ConstructorCh\n";
  CItem item1('r');
  CItem item2('m');
  item1.display();
  item2.display();
  }

    
////////////////////////////////////////////////////
//CItem (name, weight) constructor
// constructs an object with given name and weight
////////////////////////////////////////////////////
CItem::CItem(char name[], int weight)
  {
  strcpy(m_name, name);
  m_weight = weight;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testConstructor
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testConstructor(void)
  {
  cout << "Test Constructor(name, weight)\n";
  CItem item("Chair", 150);
  item.display();
  }


////////////////////////////////////////////////////
// display 
////////////////////////////////////////////////////
void CItem::display(void) const
  {
  cout << '[' << m_name << ", ";
  cout << m_weight << ']' << endl;
  }


////////////////////////////////////////////////////
//constructor default
////////////////////////////////////////////////////
CItem::CItem(void)
  {
  //cout << "Default Constructor called\n";
  strcpy(m_name, "");
  m_weight = -99;
  }


////////////////////////////////////////////////////
//input function
// This is a member function for CItem class
// it gets the name and weight from the keyboard
// and sets the values of name and weight data members
////////////////////////////////////////////////////
void CItem::input(void)
  {
  cout << "item m_name:   ";
  cin >> m_name;
  cout << "item m_weight: ";
  cin >> m_weight;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testInput
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testInput(void)
  {
  cout << "test input function\n";
  CItem item1;
  item1.display();
  item1.input();
  item1.display();
  }


////////////////////////////////////////////////////
// set(name, weight)
////////////////////////////////////////////////////
void CItem::set(char name[], int weight)
  {
  strcpy(m_name, name);
  m_weight = weight;
  }


//++++++++++++++++++++++++++++++++++++++++++++++++++
// testSet
//++++++++++++++++++++++++++++++++++++++++++++++++++
void testSet(void)
  {
  cout << "Test set(name, weight)\n";
  for (int i=1; i<=5; i++)
    {
    CItem item('r');
    item.display();
    int i = rand()%MAX_NAMES;
    char tName[MAX_LEN+1];
    strcpy(tName, testNames[i]);
    cout << "tName = \"" << tName << "\"" << endl;

    int tWeight = rand()%100;
    cout << "tWeight = " << tWeight  << endl;

    item.set(tName, tWeight);
    cout << "After item.set(tName, tWeight);\n";
    item.display();
    cout << "------------------------------------\n";
    }
  }