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any body has answer for, what if a Fixnum + Fixnum, then the type can be either a Fixnum or Bignum type? The Fixnum is limited to 32 or 64 bit integers, while Bignum is arbitrary-length integer. Then the return type is not predictable

nonopolarity
– nonopolarity

2016-01-04 07:41:14 +00:00
Commented Jan 4, 2016 at 7:41
2

You don't make the result's type dependent on the operands' values. + gets defined to return a Fixnum (with possible wraparound) for all operands, or it gets defined to return a Bignum for all operands.

chepner
– chepner

2024-09-23 16:51:30 +00:00
Commented Sep 23, 2024 at 16:51

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