[LC++]problem related to traits

[choube mehul]

Hi,
    i am getting lots of error for the following 
    code.

    i am newbie to traits.

    any help will be great.

Thanks,
Mehul.

/************ Code Start **************/

#include <fstream>
#include <streambuf>
#pragma warning (pop)

template <class charT, class
traits=std::char_traits<charT> >
class debugstreambuf : public
std::basic_streambuf<charT, traits>
{
public:
  typedef charT	char_type;
  typedef std::basic_string<char_type, traits>   
 LocalString;

  explicit debugstreambuf(void)
  {
  }

  ~debugstreambuf()
  {
  }

  void SetOutputTargetFileName(const LocalString&
fileName)
  {
    if (!fileName.empty())
    {
      m_LogFileName=fileName;
    }
  }

protected:
  virtual std::streamsize xsputn(const char_type* s,
std::streamsize nHowmany)
  {
    CSigGateKeeper myGuard(m_csWriteOutputLock);

    if (m_LogFile.is_open() == false)
    {
      CreateLogFile();
    }

    if (m_LogFile.good())
    {
      m_LogFile << s;
    }

#if defined(_DEBUG) && defined(_WIN32)
  OutputDebugStringA(s);
#endif
    return (nHowmany);
  }

  virtual int_type overflow(int_type c=traits::eof())
  {
    // this method is supposed to flush the put area
of the buffer
    // to the I/O device

    if (m_LogFile.is_open() == false)
    {
      CreateLogFile();
    }

    if (m_LogFile.good())
    {
      m_LogFile << (char_type)c;
    }

#if defined(_WIN32) && defined(_DEBUG)
    TCHAR achOutput[2];

    achOutput[0]=static_cast<TCHAR>(c);
    achOutput[1]='\0';

    OutputDebugString(achOutput);
#endif
    return (1);
  }

  int sync(void)
  {
    m_LogFile.flush();

    return 0;
  }

  virtual void CreateLogFile(void)
  {
    if (m_LogFileName.empty() == false)
    {
      m_LogFile.open(m_LogFileName.c_str(),
std::ios_base::out | std::ios_base::app);
    }
  }

private:
  // not for use
  debugstreambuf(const debugstreambuf&);
  debugstreambuf& operator=(const debugstreambuf&);

  LocalString  m_LogFileName;
  std::basic_ofstream<char_type,traits>	m_LogFile;
};

/************ Code End **************/

/************ Error Start **************/

s:\SigFCL_\v2.7.2.0\include\debugstreambuf.h(61) :
error C2146: syntax error : missing ';' before
identifier 'char_type'
s:\SigFCL_\v2.7.2.0\include\debugstreambuf.h(61) :
error C2868:
'std::basic_streambuf<_Elem,_Traits>::char_type' :
illegal syntax for using-declaration; expected
qualified-name
        with
        [
            _Elem=char,
            _Traits=std::char_traits<char>
        ]
s:\SigFCL_\v2.7.2.0\include\debugstreambuf.h(62) :
error C2065: 'traits' : undeclared identifier
s:\SigFCL_\v2.7.2.0\include\debugstreambuf.h(62) :
error C2955: 'std::basic_string' : use of class
template requires template argument list
        c:\Program Files\Microsoft Visual Studio .NET
2003\Vc7\include\xstring(1542) : see declaration of
'std::basic_string'
s:\SigFCL_\v2.7.2.0\include\debugstreambuf.h(62) :
error C2955: 'std::basic_string' : use of class
template requires template argument list
        c:\Program Files\Microsoft Visual Studio .NET
2003\Vc7\include\xstring(1542) : see declaration of
'std::basic_string'
s:\SigFCL_\v2.7.2.0\include\debugstreambuf.h(181) :
error C3861: 'traits': identifier not found, even with
argument-dependent lookup
s:\SigFCL_\v2.7.2.0\include\debugstreambuf.h(181) :
error C2955: 'std::basic_ofstream' : use of class
template requires template argument list
        c:\Program Files\Microsoft Visual Studio .NET
2003\Vc7\include\iosfwd(454) : see declaration of
'std::basic_ofstream'
s:\SigFCL_\v2.7.2.0\include\debugstreambuf.h(181) :
error C2955: 'std::basic_ofstream' : use of class
template requires template argument list
        c:\Program Files\Microsoft Visual Studio .NET
2003\Vc7\include\iosfwd(454) : see declaration of
'std::basic_ofstream'
s:\SigFCL_\v2.7.2.0\include\debugstreambuf.h(181) :
error C2079:
'SigFoundation::debugstreambuf::m_LogFile' uses
undefined class 'std::basic_ofstream'
s:\SigFCL_\v2.7.2.0\source\datatypes\path\path.cpp(841)
: fatal error C1903: unable to recover from previous
error(s); stopping compilation

/************ Error End **************/


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