Dean Rasheed <dean.a.rash...@gmail.com> writes:
> The problem then arises in the final carry propagation pass. During
> this phase of the computation, the carry from one digit (which can be
> a shade under INT_MAX / NBASE) is added to the next digit, and that's
> where the overflow happens.

Nice catch!  I think the comment could use a little more work, but I'll
adjust it and push.

                        regards, tom lane


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