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class, pointer and reference tutorials       Share
2008-09-28 |  RatheeshTR  | Viewed: 116  |    0

#include <iostream.h>

class myClass

{

public:

myClass(
int val=0):myValue(val) { cout << "In myClass constructor\n"; }
myClass(const myClass & rhs):myValue(rhs.myValue) { cout << "In myClass copy constructor\n"; }

~myClass() { cout << "In myClass Destructor\n"; }

int GetValue() const { return myValue; }
void SetValue(int theVal) { myValue = theVal; }
private:

int myValue;
};


void SomeFunction();
myClass &WorkFunction();


int main()
{

SomeFunction();

return 0;

}


myClass &WorkFunction()

{

   myClass * pC = new myClass(5);

   return *pC;

}




void SomeFunction()
{

   myClass &rC = WorkFunction();

   
int value = rC.GetValue();
   cout << "rC's value: " << value << endl;

   myClass * pC = &rC; 
//  get  a  pointer  to  the  memory
   delete pC;  
//  oops,  now  rC  is  a  reference  to  a  null  object!
}


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