"Heikki Linnakangas" <[EMAIL PROTECTED]> writes:
> Looking closer, I don't understand how that change was supposed to do 
> anything.

The point of that patch is to avoid an off-by-one result for years BC.
The direction of rounding in integer division with a negative numerator
is undefined in C (or at least used to be --- did C99 tighten this up?).

                        regards, tom lane

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