[Pkg-ace-devel] Bug#552899: (const void*) vs (const struct dirent**)

[mario]

I'm Mario Simonetti From Italy (Piombino,Li) , I'm a programmer in 'C'
and I know this language quite good.

I wrote many and many 1000's of rows of source in previously versions of
Linux, as FEDORA FC2, FC4, FC7 , Debian 4.05 , Ubuntu 9.04 , but
I never had this kind of problem.

the template: int (*)(const void*,const void*) works very well in all of
those distributions.

But when I try to compile the same source files with Ubuntu 9.10 , I
have always the problem.

It doesn't matter if you are compiling a device-driver , or a patch o
something else , the problem existes and it isn't still solved.

I think that the casting of all our variables to adjust the correct new
syntax is not a good idea because '*' and '**' means two different
things.

(const void*) is a simple pointer to something , but (const struct
dirent **) is a pointer of a pointer, so if yow only pass the arguments
to the scandir() function and yow don't do anything other , all is okay.

If your code does something before passing the arguments to scandir
it processes variables in tho different ways (Big Problem).
Yow just get a Segmentation-fault of course !!!!!

Yow must review enterely the portion of your code keeping in your mind
what yow want to do.

Goodbye at all of yow