[developers] using PET in 64-bit mode

[Bernd Kiefer]

PET is compilable on 64 bit machines for quite a while already. I 
remember that somebody (i think it was Eric, not quite sure) said that 
results on 32 bit and 64 bit PET were different for some grammars.

Maybe the grammar writers could check this by comparing the results of 
their 32 bit test runs against the 64 bit PET version. If there are 
differences, we can sure pin them down (Peter already has gained some 
experience with this lately :-)

Best,
	Bernd

Stephan Oepen wrote:
> hi bernd, yi, and peter,
> 
> it seems that PET now compiles without warnings in 64-bit environments.
> i used to think the code was not 64-bit clean because of the occasional
> cast between pointers and ints.  have these been rectified?  are people
> using 64-bit PET binaries already?  anything else to watch out for?
> 
>                          thanks for the good work!  best wishes  -  oe
> 
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