[Ironruby-core] Is the Fixnum size difference a problem?
jomes at microsoft.com
Fri Dec 21 16:45:02 EST 2007
Peter Bacon Darwin:
> IronRuby has the same semantics, except that of course what is a
> Bignum for CRuby is not a Bignum for IronRuby.
> In CRuby:
> 0x40000000.div(0.0) => Infinity
> In IronRuby:
> 0x40000000.div(0.0) => raises FloatDomainError
> Now clearly this is a problem with the fundamental implementation of
> Fixnum/Bignum but Rubinius seems to follow suit and I assume JRuby too
> (although I haven't checked).
> What are your thoughts on dealing with this issue? Should we brush it
> under the carpet and hope that Ruby 2.0 will fix it or what? Should
> we force IronRuby's Fixnum to be 31 bits?
I think we can keep Fixnums at 32 bits, and fix div to throw. Just tried in JRuby:
They actually have 64bit Fixnums... wow :)
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