A problem with pointers and objects.

This is a discussion on A problem with pointers and objects. within the C++ Programming forums, part of the General Programming Boards category; I am having a bit of trouble here - I know what the problem is, but I am not very ...

  1. #1
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    Question A problem with pointers and objects.

    I am having a bit of trouble here - I know what the problem is, but I am not very well acquainted with the tools of C++.

    To help you scuff through all the nonsense in the below code, go to line 144.
    Code

    I have a class "node", with a subclass "lexicalnode". A third class, "lexicalitem" is a base class. "lexicalnode" and "lexicalitem" each has a pointer which points to another object of the opposite class. The problem is that one of them is declared before the other, meaning I get a compiler error at the last one. How can I solve this?

    If there is any way to separate "lexicalnode" and "lexicalitem" into separate .cpp files without a recursive inclusion, I would be happy for assistance.

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    Forward declaration.

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    Thanks for the answer, but I must ask of you to elaborate on that.
    I may be going a bit fast forward, and I probably should pick "Thinking in C++" out of my bookcase to read it, but I just want to get this over with.
    I presume that forward declaration may be a bit to explain, but I would appreciate any keywords on the topic so I can read up on them.

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    If you google for "forward declaration" you'll find a lot of resources that explain how it works. It's a useful technique to speed up compilation times, amongst other things.

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