VC++ uses all C++ features. VC++ has GUI and it is user
friendly.It has many programming features
likeWin32, MFC, ATL, ActiveX, DLL's etc.
Thread is a smallest unit of process. In process have one
or more thread.
#include<iostream.h>
#include<conio.h>
class BOX
{
private:
int l,b,h;
public:
void input();
void print();
long volume(long,int,int);
};
void BOX::input()
{
cout<<"input values of l,b,&h"<<"\n";
cin>>l>>b>>h;
}
void BOX::print()
{
cout<<"volume="<<"\n";
}
void BOX::volume()
{
long volume(long l,int b,int h);
{
return(l*b*h);
}
}
void main()
{
set BOX b1;
b1.input();
b1.print();
b1.volume();
return;
}
To avoid local copy of object reference (&) is used in copy
constructor.
Moreover if the & is ommited then copy constructor goes in
infinite loop.
eg. if class name is Sample.
Copy constructor without &
Sample :: Sample (Sample s)
{
//Code goes here
}
and we create object as follows. ;
Sample s;
Sample s1(s);
In this scenario program will go in infinite loop.
Webmaster 23rd of May 2012
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