[Boost-users] BOOST_MPL_ASSERT at struct scope

From: Hansi (hansipet_at_[hidden])
Date: 2008-05-23 03:55:43

Hello,

I want to use the BOOST_MPL_ASSERT Macro inside a struct (compiler is 
MSVC2005)

#include <boost/mpl/assert.hpp>
#include <boost/type_traits.hpp>

template<typename Value>
struct Getter
{
        typedef std::wstring result_type;
                        
        BOOST_MPL_ASSERT(( boost::is_fundamental< Value > ));
                        
        std::wstring operator()(const Value* val)const
        {
                return boost::lexical_cast<std::wstring>(*val);
        }

        std::wstring operator()(typename 
boost::call_traits<Value>::const_reference val)const
        {
                return boost::lexical_cast<std::wstring>(val);
        }
};

Here I get allways the following error:

Error	1	error C2664: 'boost::mpl::assertion_failed' : cannot convert 
parameter 1 from 'boost::mpl::failed 
************boost::is_fundamental<T>::* ***********' to 
'boost::mpl::assert<false>::type'	Utils.h	32	

Error	2	error C2866: 
'Microtec::Viewer::Getter<Value>::mpl_assertion_in_line_32' : a const 
static data member of a managed type must be initialized at the point 
of declaration	Utils.h	32	

Inside the function it works fine..
Has anyone an idea how I can solve that?

Best regards
Hansjörg