Re: Var is dead! Long Live CheckedPtrVar and IntegerVar!

[Roger Gregory <roger>]

I thought the version that wjr had done held onto a pointer ot something,
not necessarily a heaper.  Heapers have a lot of baggage the bignum parts
on IntegerVars don't have to have all that stuff.  I don't see how any
of the changes to Var have any effect on the bignum stuff at all.  markm?

My point is that all the legal values we want can be encoded in the bignum
stuff, even NaN behavior if we have any reason to want that.  We could
even put Infinitys there (all of them).