plz help me with this error

This is a discussion on plz help me with this error within the C++ Programming forums, part of the General Programming Boards category; Hi all! can somebody please tell me what is wrong with the following code? the header file: Code: #include <set> ...

  1. #1
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    plz help me with this error

    Hi all!
    can somebody please tell me what is wrong with the following code?
    the header file:
    Code:
    #include <set>
    template <typename T>
    class professional_set
    {
    public:
    	set<typename T> root;
    	set<typename T>:: iterator it;
    }
    in .cpp file I have built an object like this:
    professional_set <int> a;

    when I compile it, it gives this error for the last line:
    missing ';' before identifier 'it'
    missing type specifier - int assumed. Note: C++ does not support default-int

    what do I do now?

  2. #2
    and the hat of wrongness Salem's Avatar
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    Your template class seems to be missing a trailing ;
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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  3. #3
    'Allo, 'Allo, Allo
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    Things in standard headers are in the std namespace.
    Members of objects that depend on a template paramater rather than something concrete like int (I mean your iterator declaration), require you to help the compiler by prepending 'typename' to the declaration.
    Unless you have something really convoluted (you don't), typename never goes within the angle brackets in a variable declaration. Just 'T' is enough.

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