Re: Functor Compilation Error

I'm getting an error that I can't seem to resolve. When I compile theFunctorrelated logic in a test program, the files compile and execute
properly (see Listing #1).

However, when I incorporate the same logic within my simulation, the
class that implements thefunctorlogic has problems compiling. I get
the following errors:

-- Building myTest.cpp --
In file included from myTest.cpp:52:
../tstDir/myFunctor.h:19: error: expected unqualified-id before '*'
token
../tstDir/myFunctor.h:19: error: expected `)' before '*' token
../tstDir/myFunctor.h:19: error: expected `,' or `...' before '*'
token
../tstDir/myFunctor.h:19: error: `TSpecificFunctor' declared as
function returning a function
../tstDir/myFunctor.h:19: error: `<anonymous>' has incomplete type
../tstDir/myFunctor.h:19: error: invalid use of `void'
../tstDir/myFunctor.h:19: error: expected `;' before ')' token
myTest.cpp: In member function `virtual void
tst::myTest::Initialize()':
myTest.cpp:527: error: no matching function for call to
`tst::TSpecificFunctor<tst::myScats>::TSpecificFunctor(tst::myScats*,
void (tst::myScats::*)())'
../tstDir/myFunctor.h:14: note: candidates are:
tst::TSpecificFunctor<tst::myScats>::TSpecificFunctor(const
tst::TSpecificFunctor<tst::myScats>&)

Listing #2 provides thefunctorimplementation as used in my
simulation. Can anyone tell me what is causing the compilation error
and how to possibly resolve it?

LISTING #2 (code in simulation)

In myTest.cpp:

#include "ScatFunctor.h"
#include "myScats.h"
#include "myFunctor.h"

void myTest::Initialize()
{
   using namespace tst;

   myScats objB;

   TSpecificFunctor<myScats> specFunc( &objB, &myScats::Initialize);

   myFunctor* funcTable[] = { &specFunc };

   funcTable[0]->Call();

}

In myFunctor.h:

#ifndef myFunctor_H
#define myFunctor_H

#include "tst_config.h"

#include "ScatFunctor.h"

BEGIN_TST_NAMESPACE

template <class TClass> class TSpecificFunctor : public TFunctor
{
   public:

     // Constructor - takes pointer to an object and pointer to
     // a member function and stores them in two private variables
       TSpecificFunctor(TClass* _pt2Object, void(TClass::_*fpt) ())
         { pt2Object = _pt2Object; fpt = _fpt; };

     // override function "call" in base class
     virtual void Call()
       { (*pt2Object.*fpt) (); };

   private:

      void (TClass::*fpt) ();
      TClass* pt2Object;

};

END_TST_NAMESPACE

#endif

In ScatFunctor.h:

#ifndef ScatFunctor_H
#define ScatFunctor_H

#include "tst_config.h"

BEGIN_TST_NAMESPACE

class TFunctor
{
   public:

     virtual void Call(); // call using function

};

END_TST_NAMESPACE

#endif

In myScats.h:

#ifndef myScats_H
#define myScats_H

#include "tst_config.h"

BEGIN_TST_NAMESPACE

class myScats
{
public:

  // Constructor/Destructor
  myScats() {};
  virtual ~myScats();

  void Initialize() {"In Scats Initialize"};

protected:

private:

};

END_TST_NAMESPACE

#endif // End of Listing #2

LISTING #1 (stand-alone test program)

In BaseFunctor.cpp:

#include "BaseFunctor.h"
#include "DerivedFunctor.h"
#include "sea.h"

int main (int argc, char* argv[])
{
  sea objB;

  // instantiate DerivedFunctor objects ...
     //functorencapsulating pointer to object and to a member of
class sea
     TSpecificFunctor<sea> specFuncSea(&objB, &sea::Display);

  // array with pointers to the Base class (TFunctor) and initialize
it
  TFunctor *vT = { &specFuncSea };

  vT->Call();

  return 0;

}

In BaseFunctor.h:

#ifndef BaseFunctor_H
#define BaseFunctor_H

// abstract base class

class TFunctor
{
   public:

     // Derived classes will use a pointer to an object and
     // a pointer to a member function to make the function call
     virtual void Call()=0; //call using provided function name

};

#endif

In DerivedFunctor.h:

#ifndef TSpecificFunctor_H
#define TSpecificFunctor_H

#include "BaseFunctor.h"

template <class TClass> class TSpecificFunctor : public TFunctor
{
   public:

     // Constructor - takes pointer to an object and pointer to
     // a member function and stores them in two private variables

     TSpecificFunctor(TClass* _pt2Object, void(TClass::*_fpt) ())
       { pt2Object = _pt2Object; fpt = _fpt; };

     // override function "Call" in base class
     virtual void Call() // executes member function
       { (*pt2Object.*fpt) (); };

   private:

      void (TClass::*fpt) (); // pointer to a member function
      TClass* pt2Object; // pointer to an object

};

#endif

In Sea.h:

#ifndef sea_H
#define sea_H

#include <iostream>

using namespace std;

class sea
{
   public:

     sea() {};

    // Sea's Functions
    void Display() { cout << "In Sea Display" << endl; };

};

#endif

The above (LISTING #1) is compiled with the following script and
the resulting binary executes properly:

#/bin/sh

echo compiling C++ using -ansi -pedantic-errors -Wall -fPIC -g
g++ -ansi -pedantic-errors -Wall -Wno-deprecated -fPIC -g $1 $2 $3

Any help regarding some possible solutions for the compilation errors
would be greatly appreciated!

Danny