Re: [Boost-users] [asio] It pollutes my O-Zone!

Subject: Re: [Boost-users] [asio] It pollutes my O-Zone!
From: Olivier Tournaire (olitour_at_[hidden])
Date: 2009-08-25 16:52:31

Hi,

2009/8/25 Robert Dailey <rcdailey_at_[hidden]>

> The two significant lines are:
> #include <boost/asio/io_service.hpp>
> #include <wx/frame.h>
>
> With the order they are in above, you will get a linker error:
>
> Error 1 error LNK2001: unresolved external symbol "public: virtual class
> wxClassInfo * __thiscall wxFrame::GetClassInfoA(void)const "
> (?GetClassInfoA_at_wxFrame@@UBEPAVwxClassInfo@@XZ) MainFrame.obj
>
> When you swap the order, it goes away.
>

Maybe you can try this solution:
http://www.wxwidgets.org/docs/faqmsw.htm#asuffix

Regards,

Olivier

>
> ---------
> Robert Dailey
>
>
>
> On Tue, Aug 25, 2009 at 12:11 PM, Jens Weller <JensWeller_at_[hidden]> wrote:
>
>>
>> > I noticed that <boost/asio.hpp> and <boost/asio/io_service.hpp> both
>> > include
>> > windows specific header files through some level of indirection. I know
>> > this
>> > because it is causing problems with wxWidgets depending on the order of
>> my
>> > include directives. I was considering using a mediator/pimpl of some
>> sort
>> > to
>> > keep the asio includes limited to a very confined translation unit, but
>> > this
>> > would complicate the usage of ASIO in general. I have a class that owns
>> an
>> > io_service object by-value in its header.
>> > Anyone have any suggestions to reduce the amount of namespace polluting
>> > ASIO
>> > does? I really blame this on the Windows API, since ASIO is just as
>> > limited
>> > by it as I am. Thanks in advance.
>>
>> I've just build an application with wxWidgets and asio this spring, and
>> had no problems.
>> I did use kind of the pattern in the chat example, but extended and more
>> split up in Classes.
>> Could you show the header code?
>>
>> regards
>>
>> Jens Weller
>> --
>> GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT!
>> Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01
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>
>
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