Using C++ iterators to access element

Question

Here is the code to my main method, it should be obvious what i'm trying to do with trying to get the iterator to access an element by name

#include <iostream>
#include <list>
#include "PC.h"
#include "SunServer.h"

using namespace std;

int main(){
    PC mypc1("John", "645.22.55.34", 128, "admin");
    PC mypc2("Mike", "645.22.55.34", 128, "admin");
    PC mypc3("Rick", "645.22.55.34", 128, "admin");
    PC mypc4("Bill", "645.22.55.34", 128, "admin");

    list<PC> my_group;

    my_group.push_front(mypc1);
    my_group.push_front(mypc2);
    my_group.push_front(mypc3);
    my_group.push_front(mypc4);
    list<PC>::iterator curr = my_group.begin();

    while (curr != mypc2){
        // do something
    }

}

Now obviously it doesn't work, but is there something I can do that would be equivalent to this? Thank you

Answer 1

That's because curr is an iterator, and you need something that is a PC to compare against. To get a reference to what the iterator is pointing to, you just have to dereference it (just as if it were a pointer, not a coincidence):

while (*curr != mypc2) {

I'm not sure what you're planning on doing within the loop, but if what you want is just to find the mypc2, you can use std::find:

std::list<PC>::iterator it = std::find(my_group.begin(),
                                       my_group.end(),
                                       mypc2);