//Project14.cpp
//Date 10/03/2001
//Author: Us
////////////////////////////////////////////////////
//includes
////////////////////////////////////////////////////
#include <iostream.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
////////////////////////////////////////////////////
// constants
////////////////////////////////////////////////////
const int MAX_LEN = 20;
const char *testNames[] =
{
"Chair", "Table", "Spoon", "Book", "Pen", "Eraser",
"TV", "Stereo", "VCR", "DVD Player", "XBox", "Microwave",
"Toaster", "Car", "Phone", "Couch", "Calculator",
"Cookies"
};
const int MAX_NAMES = sizeof(testNames)/sizeof(testNames[0]);
////////////////////////////////////////////////////
// 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);
////////////////////////////////////////////////////
// CItem class
////////////////////////////////////////////////////
class CItem
{
private:
char m_name[MAX_LEN+1];
int m_weight;
public:
CItem(void);
void input(void);
void display(void) const;
void set(char name[], int weight);
void setName(char name[]);
void setWeight(int weight);
CItem(char name[], int weight);
CItem(char ch);
CItem(const CItem &item);
friend bool operator ==(const CItem &i1, const CItem &i2);
char * getName(void);
int getWeight(void);
bool operator < (const CItem &i2);
CItem & operator = (const CItem &i2);
friend ostream & operator << (ostream &bob, const CItem &item);
friend istream & operator >> (istream &joe, CItem &item);
};
////////////////////////////////////////////////////
// main function
////////////////////////////////////////////////////
void main(void)
{
srand( (unsigned)time( NULL ) );
//testInput();
//testConstructor();
//testConstructorCh();
//testConstructorCopy();
//testSetName();
//testSetWeight();
//testSet();
//testOperatorEqual();
//testGetName();
//testGetWeight();
//testOperatorLessThan();
//testOperatorAssign();
//testOperatorInsertion();
//testOperatorExtraction();
//Project#3
//populate
//display
//sortBubble
//main
//main
//do the following 5 time
// populate
// display
// sortBubble
// display
//Create
CItem items[5];
for (int i=0; i<5; i++)
{
CItem item('r');
items[i] = item;
}
//display
for (i=0; i<5; i++)
cout << items[i];
//sort
/*
n = 5
do the following
sorted = true
for i=0 to n-1 do the following
if items[i] > items[i+1] then
tItem = items[i]
items[i] = items[i+1]
items[i+1] = tItem
sorted = false
end if
end for
while not sorted
*/
//display
for (i=0; i<5; i++)
cout << items[i];
}
////////////////////////////////////////////////////
//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)
{
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)
{
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 )
{
strcpy(m_name, testNames[rand()%MAX_NAMES]);
m_weight = rand()%100;
}
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";
}
}
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