[Timber] 64 bit?

[Johan Nordlander]

Some experiments have been made (although no code were checked in),  
and they mostly involved fixing rts.h.  The underlying problem is,  
though, that there's a risk parts of the code silently assume that an  
Int is of the same size as a polymorphic parameter (that is, the size  
of a pointer).  And ideally we would like to keep the Int size at 32  
bits in order to preserve platform independence, and introduce an  
Int64 type for those cases this size is needed.

So it's essentially a matter of searching the source code for any such  
size dependencies, and perhaps also extended it with Int types of  
other common sizes.  I can't foresee any deep technical difficulies,  
it's just tedious work.

You're welcome to give it a try!

-- Johan


> I haven't looked too deeply into the source, but it would appear  
> that the bulk of the 64-bit problems are relegated to rts.h.
> Is there any effort under way to address this? If not, I will take a  
> whack at correcting it. If there is some experimental code out  
> there, I'd be happy to test it on my 64 bit fedora machine.
>
> -- 
> We can't solve problems by using the same kind of thinking we used  
> when we created them.
>    - A. Einstein
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