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Re: tower.[ch]

From: Ben Pfaff
Subject: Re: tower.[ch]
Date: Sat, 22 Nov 2008 08:16:14 -0800
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux)

John Darrington <address@hidden> writes:

> On Fri, Nov 21, 2008 at 09:58:58PM -0800, Ben Pfaff wrote:
>      John Darrington <address@hidden> writes:
>      > Since the situation is similar to the "pile of books" analogy as
>      > described in the comment in src/libpspp/tower.h,  I thought I could use
>      > that.  However, there doesn't seem to be any way 1) to get a
>      > tower_node by index; or 2) given a tower_node (or index), find out how
>      > far from the "ground level" this node starts.
>      >
>      > If tower.[ch] can be made to do this in less than linear time, then I
>      > think we can use this to make operations on the datasheet much faster.
>      Here is a pair of patches, to be applied sequentially, that add
>      such support to the tower code.  Is this what you are looking
>      for?
> I think so.  Thanks.

If so, please go ahead and add those patches as commits to your
rewrite-sheet branch, and then they can get merged in when you
merge the branch.
Ben Pfaff

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