Getting the actual page number

[Ludovic Courtès]

Hi,

Using the `report' document style with address@hidden { Yes }', the cover
sheet is numbered `i' while the second page (the page where the contents
begin) is numbered 1 (or whatever address@hidden' was set to).
Similar things can be done with the `book' style.

My question is: how can we get the actual number of a page in the
output?  Here, it would return 1 for the cover sheet, 2 for the first
page, and so on.

Thanks,
Ludovic.