fixnums - Fixnum arithmetic

(import (rnrs arithmetic fixnums))

Every implementation must define its fixnum range as a closed interval [−2^(w−1), 2^(w−1)−1] such that w is a (mathematical) integer w ≥ 24. Every mathematical integer within an implementation’s fixnum range must correspond to an exact integer object that is representable within the implementation. A fixnum is an exact integer object whose value lies within this fixnum range.

Fixnum operations perform integer arithmetic on their fixnum arguments, but raise an exception with condition type &implementation-restriction if the result is not a fixnum.

R6RS

fixnum-width(3scm)

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