> Real
> Page_breaking::page_height (int page_num, bool last) const
> {
> // The caches allow us to store the page heights for any
> // non-negative page numbers. We use a negative value in the
> // cache to signal that that position has not yet been initialized.
> // This means that we won't cache properly if page_num is negative or
> // if calc_height returns a negative number. But that's likely to
> // be rare, so it shouldn't affect performance.
This comment seems to imply that there are legitimate uses for negative page
numbers. Is anyone willing to agree that I am interpreting it correctly?
Thanks,
—
Dan
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