Using pointer to access list element

This is a discussion on Using pointer to access list element within the C++ Programming forums, part of the General Programming Boards category; Hi, I'm new to C++, I have the following pointer declaration: Code: list<Vertex*>* v = m->get_vertices(); now how can I ...

  1. #1
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    Using pointer to access list element

    Hi,

    I'm new to C++, I have the following pointer declaration:

    Code:
    list<Vertex*>* v = m->get_vertices();
    now how can I access, say the first element of the vertex list.

    I appreciate any help that you guys can offer.

  2. #2
    dra
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    std::list has a begin() member function that returns an iterator that points to the first element of the container.

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    Thanks for the tip. But what if I wanna access other elements, e.g. 3rd element. Do I just set up a counter and make the iterator points to that position?

  4. #4
    dra
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    yes, usually by using a loop.

    if you're doing a lot of random access though, you might wanna use a vector instead.

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