mitlib.pub/MITLIB/Utility/TConvert.h

#ifndef _TCONVERT
#define _TCONVERT
#endif 

#ifdef _TCONVERT
//=============================================================================
// class _tochar
// This class converts either WCHAR or CHAR string to a new CHAR string.
// Memory is allocated/deallocated using new/delete
//=============================================================================
class _tochar {
private:
  BOOL m_bAutoDelete;
  LPSTR m_szBuffer;

public:
  _tochar(LPCWSTR wszText, BOOL bAutoDelete = TRUE)
  {
    m_bAutoDelete = bAutoDelete;
    _ASSERTE(wszText);
    int nLen = wcslen(wszText)+1;
    m_szBuffer = new CHAR [nLen];
    wcstombs(m_szBuffer, wszText, nLen);
  }
  _tochar(LPCSTR szText, BOOL bAutoDelete = TRUE)
  {
    m_bAutoDelete = bAutoDelete;
    _ASSERTE(szText);
    int nLen = strlen(szText) + 1;
    m_szBuffer = new CHAR [nLen];
    strcpy(m_szBuffer, szText);
  }
  ~_tochar()
  {
    if (m_bAutoDelete) {
      _ASSERTE(m_szBuffer);
      delete [] m_szBuffer;
    }
  }
  operator LPSTR()
  {
    _ASSERTE(m_szBuffer);
    return (LPSTR)m_szBuffer;
  }
  operator LPCSTR()
  {
    _ASSERTE(m_szBuffer);
    return (LPCSTR)m_szBuffer;
  }
};

//=============================================================================
// class _towchar
// This class converts either WCHAR or CHAR string to a new WCHAR string.
// Memory is allocated/deallocated using new/delete
//=============================================================================

class _towchar {
private:
  BOOL m_bAutoDelete;
  LPWSTR m_wszBuffer;

public:
  _towchar(LPCWSTR wszText, BOOL bAutoDelete = TRUE)
  {
    m_bAutoDelete = bAutoDelete;
    _ASSERTE(wszText);
    int nLen = wcslen(wszText)+1;
    m_wszBuffer = new WCHAR [nLen];
    wcscpy(m_wszBuffer, wszText);
  }
  _towchar(LPCSTR szText, BOOL bAutoDelete = TRUE)
  {
    m_bAutoDelete = bAutoDelete;
    _ASSERTE(szText);
    int nLen = strlen(szText) + 1;
    m_wszBuffer = new WCHAR [nLen];
    mbstowcs(m_wszBuffer, szText, nLen);
  }
  ~_towchar()
  {
    if (m_bAutoDelete) {
      _ASSERTE(m_wszBuffer);
      delete [] m_wszBuffer;
    }
  }
  operator LPWSTR()
  {
    _ASSERTE(m_wszBuffer);
    return (LPWSTR)m_wszBuffer;
  }
  operator LPCWSTR()
  {
    _ASSERTE(m_wszBuffer);
    return (LPCWSTR)m_wszBuffer;
  }
};

#endif