NetNews Offline 2/NetNews Offline Volume 2.iso/news/comp/lang/c++-part1/5230

Text File | 1996-08-06 | 1.9 KB | 97 lines

Path: ix.netcom.com!netnews
From: [e-mail]
Newsgroups: comp.lang.c++
Subject: Visual C++ & API Calls to SQL Database ?
Date: Sat, 03 Feb 1996 03:48:57 GMT
Organization: Netcom
Message-ID: <4eum1q$[e-mail]>
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X-NETCOM-Date: Fri Feb 02  7:50:18 PM PST 1996
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I am a Mainframe programmer who is in the process of learning Visual
C++.  I have written a few simple C programs which take their
information from a download file and input it into a Gupta SQLBASE 6.0
database via Gupta's C API routines.  However, when I try to compile
the program into a C++ program I receive the following error:

error C2664:  'sqlcnc' : cannot convert parameter 2 from 'char
    (__near *) [22] ' to 'unsigned char __far *'

The program is as follows:

#include <stdio.h>\

#include "sql.h"

SQLTAPI    sqlcmt(cur);
SQLTCUR    cur;
SQLTRCD    rcd;
char        errmsg[SQLMERR];

main()
{
    if (rcd = sqlcnc(&cur, "amgdbms/sysadm/sysadm", 0))
       {
       ...
       ...
       }
                 ...
    ...
}

The abrieviated sql.h header file, with the  extern "C"  statements
which I added, is as follows:

#ifndef SQL_16BITTARG
#if !SQL_32BITTARG
#define SQL_16BITTARG 1
#else
#define SQL_16BITTARG 0
#endif
#endif
...
...
typedef     ubyte2  SQLTCUR;
typedef     ubyte2  SQLTDAL;
typedef     ubyte1p SQLTDAP;
...
...
#if SQL_16BITTARG
#define SQLTAPI byte2 far pascal
#elif SQL_OS2
#ifdef__IBMC__
#define SQLTAPI byte2 __System
#else
#define SQLTAPI byte2 __syscall
#endif
#else
#define SQLTAPI byte2 __stdcall
#endif
...
...
#ifndef NLINT_ARGS
...
...
extern "C" {
SQLTAPI sqlcnc(SQLTCUR PTR curp  ,SQLTDAP dbnamp,
         SQLTDAL dbnaml);
...
...
        }
#else
extern "C"{
SQLTAPI sqlcnc();
...
...
          }

I am told that Gupta does not offer any C++ API routines, and
therefore I am stuck with getting the C routines to work.  I would be
very grateful for any suggestions that anyone may have.

Thanks...