From: Date: April 29 2002 5:02pm
Subject: RE : Don't use MySQL++ ! (was: Problem with mysql++ patch)
List-Archive: http://lists.mysql.com/plusplus/1076
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Oh that's true, I forgot to mention that my problems occurs on a Windows
platform with VC++ compiler...
I don't have the chance to use mysql++ on a linux platform...

Does the intel compiler handle templates correctly, and mysql++ ?

R=E9my
=20


-----Message d'origine-----
De : lance@stripped [mailto:lance@stripped] De la part de
lance@stripped
Envoy=E9 : lundi 29 avril 2002 15:58
=C0 : The Lazy Fox
Cc : Andreas Krueger; plusplus@stripped
Objet : Re: Don't use MySQL++ ! (was: Problem with mysql++ patch)


Since there have been no other postings from someone with my experience,
let it be said that I have no problems with the C++ API and am very
thankful that I can program at this high-level and not at the much more
involved and ugly low-level C API.  This has been my experience with it
for over two years and several applications.  The C++ API is
well-designed
and works great!  Now, it is true that I'm running linux, and perhaps
the
previously-posted explanation below explains the others' troubles
(it wouldn't surprise me a bit to learn MS compilers can't handle
templates correctly).  -Lance.

The Lazy Fox wrote:

> On Sun, 28 Apr 2002, Andreas Krueger wrote:
>
> > c) It doesn't seem to be sufficiently stable and tested
> > -------------------------------------------------------
> > -> Installing it and getting it running seems to be
> >    VERY difficult (not only but also on Windows):
> >    my experiences, yours and those of many others.
> > -> It works only with a small set of compilers - why?
> >    OK, it takes some time to learn plattform-independent C++,
> >    but up to now, I got ALL of my projects compiled on
> >    VisualC++, GCC and HP-Unix C++! More than 10000 lines of code.
> > -> e.g.: (At least on Windows) the SSQLS are said
> >    (by lazyfox who did the porting to VC++ 6)
> >    to be buggy or not-functioning.
> >    But that is not mentioned anywhere in the manual!
>
> i have said this over and over again, but people appear not to be
> listening and twisting my words:
>
> the main version of mysql++ (1.7.9) works fine under the unix
platforms as
> far as i know. SSQLS, all template functions, etc, are all working
> correctly under it!
>
> the mysql++ version which i ported to VC++ (1.7.1) has, on the other
hand,
> a number of bugs. these bugs are purely caused by the fact that VC++
can't
> handle the amount of templates in mysql++. this is purely a fault of
> microsoft's compiler which doesn't adhere to ANSI C++ standards, not
of
> the programmers of mysql++. these bugs can only be solved by rewriting
all
> these templates, which is not a simple task.
>
> here is a list of bugs that are known to me IN THE VISUAL C++ VERSION
> ONLY:
>
> - the SSQLS are working, but only if you use relatively small structs
> (smaller than 16 i believe) and use vectors for storing the data.
> otherwise VC++ bugs out and gives an internal compiler error.
> - the auto-quoting system doesn't work when doing queries (also due to
> template problems). this can be worked around by just adding quotes
> manually to your query/data strings.
> - VC++ has support for longlongs, but no ANSI functions that support
this
> type (like strtoll), so this type isn't really supported under VC++
>
> furthermore, i want to say that i'm not officially connected to MySQL
AB.
> i'm just somebody who did a C++ project under VC++ and needed mysql
> support. i found out about mysql++, which was just what i needed. but
to
> my disappointment only unix and borland platforms were supported.
> however, instead of whining to the programmers about this, i ported it
to
> VC++ myself, originally only for use with my own project. because i
only
> needed its basic functionality i didn't really care to test its more
complex
> functions (the basic functionality is really working quite fine).
> later i thought that there might be more people who wanted a VC++
version
> of MySQL++, so i posted my port to the maintainer of mysql++ who put
the
> package on the website.
> now, since i finished my project, i'm not really doing anything with
> mysql++ anymore, which means that i'm not going to fix the bugs in the
> VC++ version unless somebody employs me for it.
>
> so, basically, if you want a VC++ version of mysql++ without these
bugs,
> please feel free to just take the code and fix it. it isn't
open-source
> for nothing after all.
>
> however, what i can't stand is that somebody, who encountered these
bugs
> in my CONTRIBUTED VC++ version, goes screaming around that mysql++ is
a
> completely bad product because of that.
> if you want to use the C version, by all means do that. if you want to
use
> the VC++ version without bugs, go contribute a new one!
>
> lazyfox.

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