Pro*C generates code that generates a compiler warning about argument 2 (sqlctx) in call to sqlcxt() in generate source files ...

From: Panagiotis A. Vretanos <pvretano_at_techie.com>
Date: Tue, 09 Nov 1999 04:50:43 GMT
Message-ID: <3827B815.AAC176CF@techie.com>

Howdy all,

Consider for a moment the following code file:

• cut here ---

#include <sqlca.h>

int dummy()
{

   EXEC SQL DELETE FROM X WHERE F1=10;
   return(1);
}

• cut here ---

This, to me seems like a perfectly valid .pc file (albeit a bit sparse).

I precompile this file using the following proc invocation:

   /jazb/app/oracle/product/8.1.5/bin/proc include=/include

   include=/usr/include include=include include=../../include
   include=../../include/src
   include=/usr/lib/gcc-lib/i386-glibc20-linux/egcs-2.90.29/include
   include=/jazb/app/oracle/product/8.1.5/precomp/public

   ltype=none code=ansi_c iname=test.pc

I then compile it using the following gcc invocation:

   gcc -ansi -Wall -DLINUX -D_GNU_SOURCE -D_SVID_GETTOD -DSLTS_ENABLE
   -DSLMXMX_ENABLE -D_REENTRANT -DREENTRANT -DNS_THREADS -Iinclude
   -I../../include -I/jazb/app/oracle/product/8.1.5/precomp/public -c

test.c

When I do this, a warning is generated ...

Pro*C/C++: Release 8.1.5.0.0 - Production on Tue Nov 9 00:47:12 1999

(c) Copyright 1999 Oracle Corporation. All rights reserved.

System default option values taken from: /jazb/app/oracle/product/8.1.5/precomp/admin/pcscfg.cfg

test.c: In function `dummy':
test.c:159: warning: passing arg 2 of `sqlcxt' discards `const' from pointer target type

I can see why the warning is generated; the following code snipettes generated by Pro*C are taken
from the test.c file:

   static const unsigned int sqlctx = 1;

   extern void sqlcxt (void **, unsigned int *,

                       struct sqlexd *, const struct sqlcxp *);

   sqlcxt((void **)0, &sqlctx, &sqlstm, &sqlfpn);

My question is...

Why is PRO*C coding things this way? Is this a bug?

Any help expunging this annoyance would be greatly appreciated!

Ciao.

P.S. My environment is:

     Redhat LINUX 6.0   kernel 2.2.5-15
                        glibc  2.1.1-6
                        gcc    egcs-2.91.66 19990314/Linux (egcs-1.1.2

release)

     Oracle 8.1.5 for LINUX Received on Mon Nov 08 1999 - 22:50:43 CST