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#include <string>
#include <iostream>
class vdv {
private:
int age;
std::string name, sport;
double weight, height;
public:
vdv() {
name = sport = "No name";
age = 0;
weight = height = 0;
}
vdv(std::string _name, std::string _sport, int _age, double _height, double _weight) :
name(_name), sport(_sport), age(_age), height(_height), weight(_weight) {};
~vdv() {
name = sport = " ";
age = 0;
height = weight = 0;
}
friend std::istream& operator>>(std::istream &is, vdv &obj);//passed second object by reference
friend std::ostream& operator<<(std::ostream &os, const vdv &u);//passed second object as a referece to const
bool operator>(vdv obj);
};
//------------------------------------------
std::istream &operator>>(std::istream &is, vdv &obj) {//added & on second argument
is >> obj.name >> obj.sport >> obj.age >> obj.height >> obj.weight;
//no need for cout here
//check if input succeded
if(is)
{
;//do something here if you need to
}
//otherwise leave the objec in its default state
else
{
obj = vdv();
}
return is;
}
std::ostream &operator<< (std::ostream & os, const vdv &obj) {//passed 2nd argument as reference to const
os << obj.name << obj.sport << obj.age << obj.height << obj.weight;
//no need for cout here
return os;
}
bool vdv::operator>(vdv obj) {
if (height > obj.height) return true;
else if (height < obj.height) return false;
else if (weight >= obj.weight) return true;
else return false;
}
void swap(vdv &o1, vdv &o2) {
vdv temp = o1;
o1 = o2;
o2 = temp;
}
void bubblesort(vdv *a, int n) {
for (int i = 0; i < n - 1; i++)
for (int j = 1; j < n; j++) {
if (a[i] > a[j]) swap(a[i], a[j]);
}
}
//------------------------------------------
int main() {
vdv o1;
std::cin >> o1;
std::cout << o1;
}
Compiling Program...
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