How to inherit constructors? OR how to make similar constructors?

July 25, 2022

I am making a class for a character with several attributes. I made it so the user has to choose between 3 objects made from the constructor of that first class.
I cant think of a way to choose between the objects so I want to create a class that inherits the attributes of the first class(basically a copycat) but will only copy the chosen object.

#include <iostream>
#include <cmath>
#include <windows.h>

using namespace std;

class Character {
    public:
        string weapon;
        float HP;
        float MP;
        float str;
        float def;

        Character(string aweapon, float aHP, float aMP, float astr, float adef){
            weapon = aweapon;
            HP = aHP;
            MP = aMP;
            str = astr;
            def = adef;
        }
};

class Chose : public Character{
    
};

int main()
{

    Character warrior("sword", 100, 20, 50, 50);

    Character tank("shield", 200, 20, 25, 80);

    Character magician("staff", 80, 100, 30, 30);

    Chose that; // error is here

    cout << warrior.HP << endl;

    return 0;
}

error says:-

|24|error: no matching function for call to 'Character::Character()'
|15|candidates are:
|15|note: Character::Character(std::string, float, float, float, float)
|15|note:   candidate expects 5 arguments, 0 provided
|7|note: Character::Character(const Character&)
|7|note:   candidate expects 1 argument, 0 provided
|39|note: synthesized method 'Chose::Chose()' first required here

Sooooo, I can’t figure out the problem here.

>Solution :

class Chose : public Character{
public:
    using Character::Character;
};

https://godbolt.org/z/TEG7Pvdxa

Note that you are trying use default constructor of Character which was removed since custom constructor was defined. As result default constructor of Chose can’t be created implicitly (since base class do not have default constructor).