Most likely Informix C++ library designed in the very inaccurate manner.
Most likely it has a very ugly design.
Well, it's very nice to build design based on the abstract base classes, but
why to mess it
with COM ( especially if COM support is not completed at all ) ?
Why to not use a simple 'factory' pattern (without ugly references managing
ala COM ) ?
Why to not get rid of dependences of the mangled C++ symbols ( which is not
standards and is not portable ? )
Try to compile application which uses this library on the Solaris for
example using g++ or
on the Windoze using BCC or IBM V.Age !
I think it's a really * ( for Informix Support ) to support such product
!
----- Original Message -----
Sent: Wednesday, November 14, 2001 11:40 AM
Subject: Re: Cannot Find Include File
> > Thanks, That helped a bit, but now I am running into more problems. I
> > am getting the following error messages. I do not understand what is
> > going on. [...]
> > LORA:/home/informix/cpp/proj01 g++ -o csql -I$INFORMIXDIR/incl/c++
> > -I$INFORMIXDI
> > R/incl/dmi -I$INFORMIXDIR/incl/esql csql.C
> > In file included from csql.C:3:
> > /usr/opt/informix/incl/c++/it.h:85: parse error before `false'
> > /usr/opt/informix/incl/c++/it.h:86: parse error before `true'
> > LORA:/home/informix/cpp/proj01
> Most likely your C++ compiler is vaguely aware of the ISO C++ standard
(ISO/IEC 14882:1998) and therefore has
Quote:> keywords true, false and bool. Most likely, the C++ interface code you
are trying to work with is not even
Quote:> vaguely aware of the possibility that the C++ compiler might have keywords
true, false and bool, so it is
Quote:> setting up typedefs or #defines or enumerations or something to simulate
this. Most likely, then, the C++
Quote:> compiler used to build the Informix C++ library is not the same as the C++
compiler you are actually using.
Quote:> Most likely, then, you will run into problems because something will be
different in the C++ memory layout
Quote:> (and/or function name mangling) that is used by your compiler versus the
original. If all this turns out to
Quote:> be faintly true -- it's a long chain of hypotheses -- then your code will
probably not work correctly even if
> you diddle the headers into not futzing with ISO C++ keywords.
Quote:> > > I was trying to test out sample programs that come with the C++ object
> > > interface. However I keep getting error messages "cannot fine the *.h
> > > files".
> > > I even hard coded the "include" path include
> > > "/usr/opt/informix/incl/c++/it.h"
> > > but then I started getting errors for other files that it.h refer to
> > > but are not included in the same folder as the c++ includes.
> > > In the documentation, I could only find references to LD_LIBRARY_PATH
> > > env variable which I did set.
> > > However I have a feeling that there is some other environment variable
> > > that needs to be set so that the compiler can find the includes.
> > > Linux Red Hat 6.2, with client sdk 2.70 UC1 installed.
> > > Command: g++ -o csql csql.C
> And unless I'm grossly mistaken, this verion of GCC/G++ is at least
somewhat aware of ISO C++.
> --
> Guardian of DBD::Informix 1.00.PC1 -- see http://www.veryComputer.com/
> #include <disclaimer.h>
by