Re: [Boost-users] [extension] conflict with boost::optional

From: Jeremy Pack (rostovpack_at_[hidden])
Date: 2008-04-18 12:51:39

Good question. Since I don't have that compiler, I've been unable to
reproduce it.
Is this: error: error C2039: 'boost::get': Ist kein Element von
'boost::extensions::shared_library'.

The only error that you see?

Please add the command line option /P to your build - this will output the
preprocessed version of your file test_extension_and_optional.cpp. Then send
this to me - I might be able to figure out what is going on. It looks like
one of the preprocessor macros used by Boost.PreProcessor isn't working - I
do have some ideas about what may cause the problem.

See: http://support.microsoft.com/kb/134650

What happens when you move boost/optional.hpp after the extension headers?

Jeremy

On Fri, Apr 18, 2008 at 8:01 AM, David Matz <david.matz_at_[hidden]>
wrote:

> Hi,
>
> it seems that the problem concerns a specific compiler bug in microsoft
> compilers <= 13.10.6030 (MSVC 7.1).
>
> The MSVC8 and g++ (4.1.2) compilers are able to build the code without
> errors.
>
>  #include <boost/optional/optional.hpp>    // included for some reason
> > #include <boost/extension/shared_library.hpp>
> > #include <boost/extension/convenience.hpp>    // load_single_library
> >
> > void loadExtension () {
> >    boost::extensions::factory_map fm;
> >    // we don't need the following line to produce the compiler error
> >    //boost::extensions::load_single_library(fm, ".",
> > "external_function_name");
> > }
> >
>
> Any ideas how to get it to work with the good old Visual Studio 2003?
>
>
> --
> David Matz
> ----------------------------
> Software Developer
> Spatial View GmbH
>