Hey,hoping someone can help me. I'm having an error in my project. This is the problem for the project:

In C++, the largest int value is 2, 147, 483, 647. So, an integer larger than this cannot be

stored and processed as an integer. Similarly, if the sum or product of two positive integers

is greater than 2, 147, 483, 647, the result will be incorrect. One way to store and manipulate

large integers is to store each individual digit of the number in an array.

Design a class named largeIntegers such that an object of this class can store an

integers of, at most, 20 digits. Your program should inputs two positive integers of, at most,

20 digits. Then add operations to add, subtract, multiply, and compare integers stored in two

objects. Also add constructors to properly initialize objects and functions to set, retrieve,

and print the values of objects. If the result of the numbers has more than 20 digits, output

the result with an appropriate message.

Add a main function to test all of your class members. (Hint: Read numbers as strings

and store the digits of the number in an array.)

I get an error saying: error C2678: binary '>>' : no operator found which takes a left-hand operand of type 'std::istream' (or there is no acceptable conversion)

This is error is pointing to void largeintegers::Input()

This is my code:

```
#include <iostream>
#include <cctype>
#include <cstring>
using namespace std;
#define DIGITS 20
class largeintegers
{
public:
largeintegers();
void Input();
void Output();
largeintegers operator+( largeintegers );
largeintegers operator-( largeintegers );
largeintegers operator*( largeintegers );
int operator==( largeintegers);
private:
int integer[ DIGITS ];
int len;
};
void largeintegers::Output()
{
int i;
for (i=len-1;i >= 0; i-- )
cout<<integer[i];
}
void largeintegers::Input() Here is where the error is
{
string in;
int i,j,k;
cout << "Enter a number("<<DIGITS<<" digits max):";
cin >> in; This is where it points to the error!
for(i=0;in[i]!='\0';i++);
len=i;
k=0;
for(j=i-1;j>=0;j--)
integer[j]=in[k++]-48;
}
largeintegers::largeintegers( )
{
for ( int i = 0; i <DIGITS; i++ )
integer[ i ] = 0;
len=DIGITS-1;
}
int largeintegers::operator==( largeintegers op2 )
{int i;
if(len<op2.len)
return -1;
if(op2.len<len)
return 1;
for(i=len-1;i>=0;i--)
if(integer[i]<op2.integer[i])
return -1;
else if(op2.integer[i]<integer[i])
return 1;
return 0;
}
largeintegers largeintegers::operator+( largeintegers op2 )
{largeintegers temp;
int carry = 0;
int c,i;
if(len>op2.len)
c=len;
else
c=op2.len;
for ( i=0; i<c; i++ )
{temp.integer[ i ] =integer[ i ] + op2.integer[ i ] + carry;
if ( temp.integer[ i ] > 9 )
{temp.integer[ i ] %= 10;
carry = 1;
}
else
carry = 0;
}
if(carry==1)
{temp.len=c+1;
if(temp.len>=DIGITS)
cout<<"***OVERFLOW*****\n";
else
temp.integer[i]=carry;
}
else
temp.len=c;
return temp;
}
largeintegers largeintegers::operator-( largeintegers op2 )
{largeintegers temp;
int c;
if(len>op2.len)
c=len;
else
c=op2.len;
int borrow = 0;
for( int i = c;i >= 0;i--)
if(borrow==0)
{if(integer[i]>=op2.integer[i])
temp.integer[i]=integer[i]-op2.integer[i];
else
{borrow=1;
temp.integer[i]=integer[i]+10-op2.integer[i];
}
}
else
{borrow=0;
if(integer[i]-1>=op2.integer[i])
temp.integer[i]=integer[i]-1-op2.integer[i];
else
{borrow=1;
temp.integer[i]=integer[i]-1+10-op2.integer[i];
}
}
temp.len=c;
return temp;
}
largeintegers largeintegers::operator*( largeintegers op2 )
{ largeintegers temp;
int i,j,k,tmp,m=0;
for (int i=0; i<op2.len; i++)
{ k=i;
for (j=0; j< len; j++)
{tmp = integer[ j ] * op2.integer[i];
temp.integer[k] =temp.integer[k]+tmp;
temp.integer[k+1] =temp.integer[k+1]+ temp.integer[k]/10;
temp.integer[k] %=10;
k++;
if(k>m)
m=k;
}
}
temp.len=m;
if(temp.len>DIGITS)
cout<<"***OVERFLOW*****\n";
return temp;
}
using namespace std;
int main()
{int c;
largeintegers n1,n2,result;
n1.Input();
n2.Input();
n1.Output();
cout <<" + ";
n2.Output();
result=n1+n2;
cout<< " = " ;
result.Output();
cout << "\n\n";
n1.Output();
cout <<" - ";
n2.Output();
result=n1-n2;
cout<< " = " ;
result.Output();
cout << "\n\n";
n1.Output();
cout <<" * ";
n2.Output();
result=n1*n2;
cout<< " = " ;
result.Output();
cout << "\n\n";
c=n1==n2;
n1.Output();
switch (c)
{case -1: cout<<" is less than ";
break;
case 0: cout<<" is equal to ";
break;
case 1: cout<<" is greater than ";
break;
}
n2.Output();
cout << "\n\n";
system("pause");
}
```

Any help with this error would be appreciated, my project is due by sunday night. I spent

so much time pulling my hair off not knowing why this error.