Mega Code Archive
Ostream and istream operator for a class
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#include <iostream>
#include <cstring>
using namespace std;
class MyClass {
char name[80];
int id;
int prefix;
int value;
public:
MyClass() { };
MyClass(char *n, int a, int p, int nm)
{
strcpy(name, n);
id = a;
prefix = p;
value = nm;
}
friend ostream &operator<<(ostream &stream, MyClass o);
friend istream &operator>>(istream &stream, MyClass &o);
};
// Display name and phone valueber.
ostream &operator<<(ostream &stream, MyClass o)
{
stream << o.name << " ";
stream << "(" << o.id << ") ";
stream << o.prefix << "-" << o.value << "\n";
return stream; // must return stream
}
// Input name and telephone valueber.
istream &operator>>(istream &stream, MyClass &o)
{
cout << "Enter name: ";
stream >> o.name;
cout << "Enter id: ";
stream >> o.id;
cout << "Enter prefix: ";
stream >> o.prefix;
cout << "Enter value: ";
stream >> o.value;
cout << "\n";
return stream;
}
int main()
{
MyClass a;
cin >> a;
cout << a;
return 0;
}
Enter name: Joe
Enter id: 123
Enter prefix: 1
Enter value: 2
Joe (123) 1-2
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