[m-rev.] for review: fix relation.m performance bugs

[Fergus Henderson]

On 19-Dec-2003, Simon Taylor <stayl at cs.mu.OZ.AU> wrote:
> 
> Fix performance bugs in library/relation.m which caused
> `mmc --generate-dependencies' to choke on large programs
> (e.g. the compiler).
> 
> `mmc --generate-dependencies top_level' now takes
> about 8 seconds on jupiter, compared to over 2 minutes
> before.

Hurray!  Great stuff, thanks.

> +* Some predicates and functions have been added to the sparse_bitset_module:

s/_module/ module/

(Haven't reviewed anything but the log message so far.)

-- 
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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