Thread: Linked list terminates

I'm trying to construct a linked list, with nodes containing strings as oppose to integers. Here's what I have so far:

Code:

#include <iostream>

using namespace std;

class family {
    private:
        struct person {
            char name[20];
            person *next;
        }*head;
    public:
        family();
        ~family();
        void addname(char c[20]);
        int count();
};

family::family() {
    head = NULL;
}

family::~family() {
    person *temp;
    if (head == NULL) return;
    
    while (head != NULL) {
        temp = head->next;
        delete head;
        head = temp;
    }
}

void family::addname(char c[20]) {
    person *p, *q;
    if (head == NULL) {
        head = new person;
        head->name[20] = c[20];
        head->next = NULL;
    }
    else {
        q = head;
        while (q->next != NULL) {
            q = q->next;
        }
        p = new person;
        p->name[20] = c[20];
        p->next = NULL;
        q->next = p;
    }
}

int family::count() {
    int counter = 0;
    person *q;
    q = head;
    while (q->next != NULL) {
        counter++;
        q = q->next;
    }
    return counter;
}

int main()
{
    char familyname[20];
    cout<<"Enter new family: ";
    cin>>familyname;
    
    family familia;
    
    cout<<"The "<<familyname<<" family with "<<familia.count()<<" is created."<<endl;
    return 0;
}

The program runs, but it terminates abnormally right after when I enter the family name. After some basic debugging, I noticed that the problem is apparently from the count() function, but I can't see what's wrong.

Any help is appreciated.

you're right, thanks.