" src="http://www.rntsoft.com/Code/CppImages/Usefriendfunctiontooperator.PNG"
#include
using namespace std;
class factor {
int num; // number
int lfact; // lowest factor
public:
factor(int i);
friend ostream &operator<<(ostream &stream, factor ob);
friend istream &operator>>(istream &stream, factor &ob);
};
factor::factor(int i)
{
int n;
num = i;
for(n=2; n < (i/2); n++)
if(!(i%n)) break;
if(n<(i/2)) lfact = n;
else lfact = 1;
}
istream &operator>>(istream &stream, factor &ob)
{
stream >> ob.num;
int n;
for(n=2; n < (ob.num/2); n++)
if(!(ob.num%n)) break;
if(n < (ob.num/2))
ob.lfact = n;
else
ob.lfact = 1;
return stream;
}
ostream &operator<<(ostream &stream, factor ob)
{
stream << ob.lfact << " is lowest factor of ";
stream << ob.num << '\n';
return stream;
}
int main()
{
factor o(32);
cout << o;
cin >> o;
cout << o;
return 0;
}