une classe qui ne compile pas

Question

la classe CMorph ne compile pas avec des messages que je ne comprend pas:

#ifndef CMorph_H
#define CMorph_H

namespace SpecificationLoader
{
    using namespace System;
	using namespace System::ComponentModel;
	using namespace System::Collections;
	using namespace System::Windows::Forms;
	using namespace System::Data;
	using namespace System::Drawing;
	using namespace System::IO;

	ref class CMorph
	{
		public:
		CMorph::CMorph();
		CMorph::~CMorph();
	    static int CMorph::morphinit(void);
		/* Close exception list files and reopen */
		static int CMorph::re_morphinit();
 		/* Try to find baseform (lemma) of word or collocation in POS. */
		static char *CMorph::morphstr(char *, int);
		/* Try to find baseform (lemma) of individual word in POS. */
		static char *CMorph::morphword(char *, int);
		static int CMorph::do_init(void);
		static char* CMorph::strtolower( char *str);
	private:
		static char* CMorph::WsCanonWord( int offset, int count, int pos, char* word, char* end);
		static int CMorph::strend(char *str1, char *str2);
		static char* CMorph::WordBase(char *word, int ender);
		static int CMorph::hasprep(char *s, int wdcnt);
		static char *CMorph::exc_lookup(char *word, int pos);
		static char *CMorph::morphprep(char *s);
	};
};
#endif 

je vous met le fichier de code dans son début:

/*

  morph.c - WordNet search code morphology functions
  
*/
#include "StdAfx.h"
#include "wn.h"
#include "AlignStructure.h"
#include "EnumerationM.hpp"
#include "StructureM.h"
#include "TypeDefsM.hpp"
#include "POSM.h"
#include "Layout.h"
#include "ClasseAlignerManaged.hpp"
#include "StrConv.h"
#include "Morph.h"
#define EXCFILE	"%s/%s.exc"
//------------------------------------------------------------------------------
static char *Id = "$Id: morph.cpp 1.6 2009/12/08 15:28:15Z Jean_Noel_Martin Exp Jean_Noel_Martin $";

namespace SpecificationLoader // Ligne 4
{
	using namespace System; // Ligne 6
	using namespace System::ComponentModel;
	using namespace System::Collections;
	using namespace System::Windows::Forms;
	using namespace System::Data;
	using namespace System::Drawing;
	using namespace System::IO;


char *sufx[] ={
    /* Noun suffixes */
    "s", "ses", "xes", "zes", "ches", "shes", "men", "ies",
    /* Verb suffixes */
    "s", "ies", "es", "es", "ed", "ed", "ing", "ing",
    /* Adjective suffixes */
    "er", "est", "er", "est"
};

static char *addr[] ={ 
    /* Noun endings */
    "", "s", "x", "z", "ch", "sh", "man", "y",
    /* Verb endings */
    "", "y", "e", "", "e", "", "e", "",
    /* Adjective endings */
    "", "", "e", "e"
};

static int offsets[NUMPARTS] = { 0, 0, 8, 16 };
static int cnts[NUMPARTS] = { 0, 8, 8, 4 };
static char msgbuf[256];

#define NUMPREPS	15

static struct {
    char *str;
    int strlen;
} prepositions[NUMPREPS] = {
    "to", 2,
    "at", 2,
    "of", 2,
    "on", 2,
    "off", 3,
    "in", 2,
    "out", 3,
    "up", 2,
    "down", 4,
    "from", 4,
    "with", 4,
    "into", 4,
    "for", 3,
    "about", 5,
    "between", 7,
};



namespace SpecificationLoader
{
    using namespace System;
	using namespace System::ComponentModel;
	using namespace System::Collections;
	using namespace System::Windows::Forms;
	using namespace System::Data;
	using namespace System::Drawing;
	using namespace System::IO;

CMorph::CMorph()
{
}

CMorph::~CMorph()
{
}

char* CMorph::strtolower( char *str)
{
    register char *s = str;

    while(*s != '\0') {
	if(*s >= 'A' && *s <= 'Z')
	    *s += 32;
	else if(*s == '(') {
	    *s='\0';
	    break;
	}
	s++;
    }
    return(str);
}
/* Open exception list files */

int CMorph::morphinit(void)
{
    static int done = 0;
    static int openerr = 0;

    if (!done) {
      if(OpenDB)
      {	 /* make sure WN database files are open */
         openerr = do_init();
         if (!openerr)
            done = 1;
         else
            openerr = -1;
      }
      else
	 openerr = -1;
    }
    return(openerr);
}

et e fichier d'erreur:

.\..\..\..\..\..\WordNet\src\lib\morph.cpp(90): error C2888: 'SpecificationLoader::CMorph::CMorph(void)' : impossible de définir un symbole dans un espace de noms 'SpecificationLoader'
1>..\..\..\..\..\..\WordNet\src\lib\morph.cpp(94): error C2888: 'SpecificationLoader::CMorph::~CMorph(void)' : impossible de définir un symbole dans un espace de noms 'SpecificationLoader'
1>..\..\..\..\..\..\WordNet\src\lib\morph.cpp(98): error C2888: 'char *SpecificationLoader::CMorph::strtolower(char *)' : impossible de définir un symbole dans un espace de noms 'SpecificationLoader'
1>..\..\..\..\..\..\WordNet\src\lib\morph.cpp(115): error C2888: 'int SpecificationLoader::CMorph::morphinit(void)' : impossible de définir un symbole dans un espace de noms 'SpecificationLoader'
1>..\..\..\..\..\..\WordNet\src\lib\morph.cpp(136): error C2888: 'int SpecificationLoader::CMorph::re_morphinit(void)' : impossible de définir un symbole dans un espace de noms 'SpecificationLoader'

qu'est ce qui fait  générer ces erreurs

---

Jean Noël Martin