[m-rev.] diff: improve efficiency of list__merge_sort

[Fergus Henderson]

On 24-Aug-2001, Simon Taylor <stayl at cs.mu.OZ.AU> wrote:
> 
> library/list.m:
> 	Improve efficiency of list__merge_sort by not recomputing
> 	the length of the list at each step.

How much difference does this make?

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
The University of Melbourne         |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
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