[boost] Help! Error in quote.hpp...

From: Dan W. (danw_at_[hidden])
Date: 2003-11-30 15:53:20

Hi, I'm using latest betas for Digital Mars, STLport and BOOST, and I'm 
trying to compile a state-machine using boost's fsm::state_machine.
My include line is as follows:
   G:\boost-1.30.2;G:\boost-1.30.2\boost\mpl;G:\boost-1.30.2\libs\mpl\example\fsm;G:\dm\STLport-5.0-1031\stlport;G:\dm\include
Here's the top of my file:

  ...............................................................................
#include <iostream>
#include "boost/mpl/list.hpp"
#include "state_machine.hpp"

namespace mpl = boost::mpl;

class rec_frm_sm : fsm::state_machine<rec_frm_sm>
{
  public:
  ...............................................................................

What I get on the output window is:

sc rec_frm.cpp -Ae -Aa -r -mn -C -WA -S -3 -a8 -c -gf -IG:\boost-1.30.2 
-IG:\boost-1.30.2\boost\mpl -IG:\boost-1.30.2\libs\mpl\example\fsm 
-IG:\dm\STLport-5.0-1031\stlport -IG:\dm\include -orec_frm.obj
Error: G:\boost-1.30.2\boost/mpl/aux_/preprocessed/plain /quote.hpp(7): no 
type for argument 'T'
Error: G:\boost-1.30.2\boost/mpl/aux_/has_type.hpp(23): no type for 
argument 'T'
Error: G:\boost-1.30.2\libs\mpl\example\fsm\state_machine.hpp(67): ';' 
expected following declaration of struct member
Error: G:\boost-1.30.2\libs\mpl\example\fsm\state_machine.hpp(73): '{' expected
Fatal Error: G:\boost-1.30.2\libs\mpl\example\fsm\state_machine.hpp(78): 
too many errors
Lines Processed: 34008  Errors: 5  Warnings: 0
Build failed

I'm not sure how to track the include path for quote.hpp and has_type.hpp. 
I notice there's a link at www.boost.org for tracking header file 
inclusion, but the link appears to be broken.
The other errors happen in the state_machine.hpp file from boost, which I 
modified to add a visitor hook, as follows:

     ..................................................................................
     state_t current_state() const
     {
         return m_state;
     }
     // ******************** added by DW *********************** \\
     struct avisitor
     {                                                     // <-------------(1)
         template < state_t S >
         virtual void visit( S s ) const
         {
             assert( false );
         }
         template < state_t S, class C >        // <-------------(2)
         virtual void visit( S s, C const & c ) const
         {
             assert( false );
         }
     };
     template < avisitor V >
     void accept( V const & v ) const
     {
         v.visit(m_state);
     }
     template < avisitor V >
     void accept( V const & v )
     {
         v.visit(m_state);
     }
     template < avisitor V, class C >
     void accept( V const & v, C const & c ) const
     {
         v.visit(m_state,c);
     }
     template < avisitor V, class C >
     void accept( V const & v, C const & c )
     {
         v.visit(m_state,c);
     }
     //********************************************************\\
  protected:
     // interface for the derived class
     state_machine(state_t const& initial_state)
         : m_state(initial_state)
     {}
     ..........................................................................

The missing semicolon is reported at the opening brace of struct avisitor (1).
The '{' expected happens at the line of the second template declaration (2).

Any help would be appreciated.
Yours.
dan