how to delete from list

Code:

---

class Person{ 
      public:
            string name;
            string address;
            string phone;
     
      public:
            friend ostream& operator<< (ostream& out,const Person& person){
                    out.setf(ios::left);
                    out.width(sizeof(person.name)+6);
                    out<<person.name;
                    out.width(sizeof(person.address)+6);
                    out<<person.address;
                    out.width(sizeof(person.phone));
                    out<<person.phone<<endl;
                    return out;
                    }
              friend istream& operator>> (istream& in, Person& person){
                    in.width(sizeof(person.name)+6);
                        in>>person.name;
                        in.width(sizeof(person.address)+6);
                        in>>person.address;
                        in.width(sizeof(person.phone)+6);
                        in>>person.phone;
                    return in;
                    }
};     

list<Person> L;                                         
list<Person>::iterator i; 

bool find (Person pers, const list<Person> &L){
   
    for(list<Person>::const_iterator i = L.begin(); i != L.end(); ++i){
        if(((Person)*i).name == pers.name ){
            return true;
        }
    } 
}

void deleteR(){
   
                  Person person;
                          cout<<"\nEnter name: ";
                          cin>>person.name;
                         
                          if(find(person,L)){
                                    remove(person);  dont work...
                                     
                          }
                       
}

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how i can.. delete from list..??plz help

you have to have the iterator you want to delete and then you type:

L.erase(pos); where L is the list and pos is the iterator (not const_iterator).

e.g.:
list<int> L;
L.push_back(4);
L.push_back(3);
list<int>::iterator pos;
pos = L.begin(); //returns the iterator of the first element
L.erase(pos); //erase the element that the iterator points to
cout << L.size() << ' ' << *(L.begin()) << endl; //should output 1 3

if you wanted to remove all occurrences of Persons with that name, you could do

Code:

---

    for(list<Person>::iterator i = L.begin(); i != L.end();){
        if(i->name == person.name ){
            i = L.erase(i);
        } else {
            ++i;
        }
    }

---

or just the first occurrence

Code:

---

    for(list<Person>::iterator i = L.begin(); i != L.end(); ++i){
        if(i->name == person.name ){
            L.erase(i);
            break;
        }
    }

---

you get the idea

also, if you need to look up by person's name a lot, and don't need the order, you might consider using a map instead of a list