Mail Archives: cygwin/2003/07/21/15:27:20
Hello again,
following this example:
TObject.hpp:
class Tobject {
...
};
extern "C" {
void * init();
}
TObject.cpp
void * init() {
return (new Tobject());
}
I create a DLL, g++ -c Tobject.cpp
g++ -shared -o Tobject.dll Tobject.o
When calling the init function after initialising everything
with
dlopen, dlsym, dlcose... It's generating a segmentation fault,
is
it due to the load and unload of the DLL? Even if I don't call
the
dlclose at the end, it's still doing the segmentation fault, is
there
a way of passing the pointer from the DLL to the main program
using
dlopen/dlsym stuff?
Let me know if I can't ask this kind of question to the list ;-P
Thanks in advance,
Lucien.
-----Message d'origine-----
De : Ronald Landheer-Cieslak [mailto:ronald AT landheer DOT com]
Envoyé : lundi 21 juillet 2003 15:48
À : Lucien Mathieu
Cc : cygwin AT cygwin DOT com
Objet : Re: Call dynamic pointer
On Mon, 21 Jul 2003, Lucien Mathieu wrote:
> Hello,
>
> in a dll, I'm calling a
>
> extern "C" {
> void * init();
> }
>
> where it is define as follow
>
> void * init() {
> return (new TObject());
> }
>
> it's doing a segment fault,
> does the new pointer is automatically deleted?
>
> I was thinking not to use the dlclose in the main program,
> but it doesn't work either.
>
> Any idea how to return a pointer from a DLL to a main program?
>
> Thanks in advance,
You're not providing nearly enough information about your problem. Have
a
look at http://www.cygwin.com/problems.html for more information.
HTH
rlc
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