Question

i just made a person class and defined 2 overloaded constructors as u see
then made an array of 2 objects but some error pops up !

why i get these 2 errors guys please ??
and what’s the [-fpermissive] error ??

#include <iostream>
using namespace std;
class person
{
    int x;

public:
    person() {
        x=0;
    }
    person(int y){   //error
        x=y;
    }
};


int main()
{
    int n;

    cin>>n;

    person* Arr= new person[2];

    Arr[0]=new person(n);  //error
    return 0;
}

Answer 1

You didn’t post the errors, but I assume they were,

: In function ‘int main()’:
:25:24: error: invalid conversion from ‘person*’ to ‘int’ [-fpermissive]
:11:5: error:   initializing argument 1 of ‘person::person(int)’ [-fpermissive]

You have two options. One, make an array of person pointers that point to person objects you create with the “new” keyword and that reside on the heap.

person* Arr[2];
Arr[0]=new person(n);

You could also make an array of persons and then set them equal to another person, which doesn’t require the new keyword. These would reside on the stack.

person Arr[2];
Arr[0]= person(n);