Small tricks to accomplish return type overload in c++. In cpp one can not overload return type. If you follow this trick you can overload return type using operator overloading :)
struct Car {
string name;
string brand;
};
struct Bus {
string name;
string brand;
};
struct Transport
{
Car get_car()
{
Car oCar;
oCar.name="Axio";
oCar.brand="Toyota";
return oCar;
}
Bus get_bus()
{
Bus oBus;
oBus.name="Greenline";
oBus.brand="Hundai";
return oBus;
}
auto get_transport()
{
struct result
{
Transport * trans;
operator Car() { return trans->get_car(); }
operator Bus() { return trans->get_bus(); }
};
return (result{this});
}
};
int main() {
Transport tt;
Car myCar = tt.get_transport();
Bus myBus = tt.get_transport();
cout << myCar.name << " == " << myCar.brand << endl;
cout << myBus.name << " == " << myBus.brand << endl;
return 0;
}
============
You can not use below code it will get compile error:
struct Transport
{
Car get_transport() { return (Car{});}
Bus get_transport() { return (Bus{});}
};
