C++ templates in GCC

Question

I have problems with porting Windows application to Linux (GCC).

I have the following code in Windows (Visual Studio 2010 compiling it well): I have template class, that contains a structure.

    template<typename bidtype>
    class pst_bc_block : public pst_entries_block<bidtype>
    {
public:
    ...
    struct tag_bc
        {
            WORD  ID;
            WORD  type;
            DWORD  value;
        };
    ...
    }

When I'm trying to do something like this:

pst_bc_block<bidtype>::tag_bc tag_value;
tag_value.ID = 6;

GCC can't resolve ID member.

P.S. All windows types are defined and VS comple it well.

Please consider adding the exact error message in the question to improve it. Without an exact copy of the whole message it could be hard to guess what the problem is. — Theolodis, Jun 03 '14 at 13:05
The minimal expansion of your code seems to compile and run fine in gcc: http://ideone.com/mREgig — eerorika, Jun 03 '14 at 13:08

Quentin · Accepted Answer · 2014-06-03T13:09:24.373

4

tag_bc is a template-dependent type. Try this :

typename pst_bc_block<bidtype>::tag_bc tag_value;

Edit: you will probably encounter trouble if you forgot to redefine Windows' WORD, DWORD and such.

edited Jun 03 '14 at 13:09

answered Jun 03 '14 at 13:03

Quentin

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You could consider improving your answer by extending the explanation for both the typename and the WORD ;) – Theolodis Jun 03 '14 at 13:07
1

I'm not much of a good teacher to be honest, so I'm used to leaving clear keywords for further research instead of trying and patching together an explanation... As for WORD, I just know that it's some Windowsian type, no more. uint32 ? – Quentin Jun 03 '14 at 13:12
WORD is unsigned short – IStar Jun 03 '14 at 13:22

C++ templates in GCC

1 Answers1