RE : Don't use MySQL++ ! (was: Problem with mysql++ patch) - Rémy Baudet - com.mysql.lists.plusplus

15 messages in com.mysql.lists.plusplusRE : Don't use MySQL++ ! (was: Proble...

From	Sent On	Attachments
Denis Rampnoux	25 Apr 2002 08:25
Sinisa Milivojevic	25 Apr 2002 08:34
Denis Rampnoux	25 Apr 2002 11:20
Sinisa Milivojevic	26 Apr 2002 05:10
Denis Rampnoux	26 Apr 2002 15:12
Andreas Krueger	28 Apr 2002 14:48
Rémy Baudet	29 Apr 2002 00:22
Mathieu DESPRIEE	29 Apr 2002 01:19
Mathieu DESPRIEE	29 Apr 2002 01:40
The Lazy Fox	29 Apr 2002 02:38
Keith MacDonald	29 Apr 2002 03:49
lan...@seacoms.com	29 Apr 2002 06:57
Rémy Baudet	29 Apr 2002 08:02
Gelu	29 Apr 2002 08:28
The Lazy Fox	29 Apr 2002 12:17

Subject:	RE : Don't use MySQL++ ! (was: Problem with mysql++ patch)
From:	Rémy Baudet (bau...@ondim.fr)
Date:	04/29/2002 08:02:36 AM
List:	com.mysql.lists.plusplus

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++ ?

Rémy

-----Message d'origine----- De : lan...@birch.he.net [mailto:lan...@birch.he.net] De la part de lan...@seacoms.com Envoyé : lundi 29 avril 2002 15:58 À : The Lazy Fox Cc : Andreas Krueger; plus...@lists.mysql.com 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.