Very Computer

Hello,

I am having a problem with Microsoft's ODBC driver for Windows NT.
SQLConnect works fine until I try to debug my application with developer
studio.  While debugging, SQLConnect causes a general protection fault.  I
can't debug my application!!!  I don't know whether this is a bug in
SQLConnect or if I'm just using it incorrectly.

Any help would be appreciated

Thanks

#include <afx.h>
#include <afxdb.h>
#include <stdio.h>

#define RC_FAILURE(x) ((x) == SQL_ERROR  || \
    (x) == SQL_INVALID_HANDLE)

#define RC_SUCCESS(x) ((x) == SQL_SUCCESS || \
    (x)  == SQL_SUCCESS_WITH_INFO)

// for general exception handling
class clError
   {
public:
   clError(const CString& msg);
   ~clError();

   const CString& get_msg()  const;
   operator const CString&() const;

private:
   CString errMsg_;

private:
   void operator,(const clError&);
   void operator&();
   } ;

int
main(int argc, _TCHAR* argv[])
   {
   _TCHAR* usage = _T("\nUsage: ./program dsn uid <pwd>\n");
   if (argc < 3 || argc > 4)
      {
      _fputts(usage, stderr);
      return 1;
      }

   try
      {
      RETCODE rc;
      HENV    henv;
      HDBC    hdbc;
      HSTMT   hstmt;

      rc = SQLAllocEnv(&henv);
      if (RC_FAILURE(rc))
         throw clError(_T("Error: SQLAllocEnv()"));

      rc = SQLAllocConnect(henv, &hdbc);
      if (RC_FAILURE(rc))
         throw clError(_T("Error: SQLAllocConnect()"));

      rc = SQLConnect(hdbc,
                     (_TUCHAR*)argv[2], SQL_NTS,
                     (_TUCHAR*)argv[3], SQL_NTS,
                     argc == 5 ? (_TUCHAR*)argv[4] : NULL, SQL_NTS);
      if (RC_FAILURE(rc))
         throw clError(_T("Error: SQLConnect()"));

      rc = SQLAllocStmt(hdbc, &hstmt);
      if (RC_FAILURE(rc))
         throw clError(_T("Error: SQLAllocStmt()"));

      _fputts(_T("Successful ODBC Init.\n"), stdout);

      SQLFreeStmt(hstmt, SQL_DROP);
      SQLDisconnect(hdbc);
      SQLFreeConnect(hdbc);
      SQLFreeEnv(henv);
      }
   catch (clError& err)
      {
      _ftprintf(stderr, _T("%s\n"), err.get_msg());
      return 1;
      }

   return 0;
   }

//# ig