Re: NSArray: Problem allocating memory on stack on windows

[David Ayers]

Richard Frith-Macdonald wrote:

> Unfortunately, having two ways of dealing with the memory means more 
> code,
> and more chance of bugs ... so generally when adopting this scheme I 
> initially
> set the changeover point very small, so it's easy to exercise both 
> schemes,
> and only increase it when I'm confident both are working well.

FYI:

I've been usimg the following scheme in GDL2:

...
     unsigned i;
     id        obj[cnt>GS_MAX_OBJECTS_FROM_STACK?0:cnt];
     id       *objPStart;
     id       *objP;
     id        anObject;
....
     objPStart = objP = (max > GS_MAX_OBJECTS_FROM_STACK)?
       GSAutoreleasedBuffer(sizeof(id)*cnt):obj;

     for(i=0; i < cnt; i++)
       {
         anObject = ...;
         ...
         *objP++=anObject;
       }
     return [NSArray arrayWithObjects: objPStart count: objP - objPStart];

Of course the autoreleasing should be avoided in your case so a second 
test would be needed to free the memory.  But if anyone as any bright 
ideas :-)

Cheers,
David