global static pointer variable in DLL

Zarathustra adam.chrapkowski at
Sat May 17 13:16:02 PDT 2008

torhu Wrote:

> Zarathustra wrote:
> > I have a C DLL whih global static pointer variables.
> > When I use this DLL with C everything is ok, but when I try to use it (DLL) with D I receive Acces Violation errors.
> > I do not have any idea what is wrong. If something is inexplicable, You will ask. Please help.
> > 
> > simple example code in dll
> > gl2ps is global pointer
> > [code]
> > if(gl2ps){/* 
> > never true in C but true in D*/}
> > [/code]
> > 
> It's a bit hard to know what the problem is when you don't post some 
> more code.  How do you declare gl2ps in D?  If it's in a C DLL, it 
> should look like this:
> export extern extern (C) void* gl2ps;
> Replace void* with the correct type, of course.
> And in the C code IIRC it should be:
> __declspec(dllexport) void* gl2ps;

gl2ps is not exported because it is not necessary beyond DLL.
gl2ps declaration in DLL is following:
static GL2PScontext *gl2ps = NULL;
for example:
The crash occurs in exported gl2psBeginPage function. (in attachment)
Declaration of above function in D is following:
extern (C) GLint gl2psBeginPage;	// static linking

DLL is little long but very simple, so I can send it to you.
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