OOP Binary addition -STL

         C++       ||       Binary Addition   ||   oop assignment

code :

#include

#include

using namespace std;

stack read()

{

stack s;

int x,n,i;

cout<<"\nEnter the no. of bits in the no. :";

cin>>n;

cout<<"\nEnter the binary number : ";

for(i=0;i

{

cin>>x;

s.push(x);

}

return s;

}

void display(stack &s)

{

cout<<" ";

while(!s.empty())

{

cout<

s.pop();

}

}

stack add(stack &s1,stack &s2)

{

stack s;

int sum,carry=0,b1,b2;

while(!s1.empty()||!s2.empty())

{

b1=b2=0;

if(!s1.empty())

{

b1=s1.top();

s1.pop();

}

if(!s2.empty())

{

b2=s2.top();

s2.pop();

}

sum=(b1+b2+carry)%2;

carry=(b1+b2+carry)/2;

s.push(sum);

}

if(carry==1)

s.push(1);

return s;

}

int main()

{

stack s1,s2,s3;

int ch;

cout<<"\n\t\t\t********** MENU **********\n";

cout<<"\n1........Read first number"

<<"\n2........Read second number"

<<"\n3........Display addition of two numbers"

<<"\n4........Exit";

do

{

cout<<"\n Enter your choice..: ";

cin>>ch;

switch(ch)

{

case 1:

s1=read();

break;

case 2:

s2=read();

break;

case 3:

cout<<"\n The result of addition is :";

s3=add(s1,s2);

display(s3);

break;

}

}while(ch!=4);

return 0;

}