Thread: Class errors

  1. #1
    Registered User
    Join Date
    Dec 2010

    Class errors

    I am getting errors like 'copyStr' was not declared in this scope.

    To explain easier, I have what I'll call class a and class b. Both are in separate .cpp files. I am attempting to call a method from class b whilst in a method in class a that uses class b as a parameter. I will then get the error above.

  2. #2
    Registered User
    Join Date
    Jun 2005
    The class a method needs to have visibility of the definition of class b. A forward declaration is not enough.

    That is usually done by having a.cpp do an #include "b.h" where b.h declares class b (and its member functions). This #include must occur before the code that tries to call a member of class b.
    Right 98% of the time, and don't care about the other 3%.

    If I seem grumpy or unhelpful in reply to you, or tell you you need to demonstrate more effort before you can expect help, it is likely you deserve it. Suck it up, Buttercup, and read this, this, and this before posting again.

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