Re: Learning qsort

Trying to get my head around qsort. Looks promising, and people I
respect say it's the right answer.

Here is my practice piece:

* 2-columns (State & City)
o sort by State, up or down
o sort by City, up or down
* always maintain the original order of the "other" column.

That looks to me like I'll want _8_ procedures? 3 columns would need
_16_ procedures? Methinks I have badly misunderstood something and
best stop and ask questions.

(I am using Jon's quite clear article as a learning guide. qsort: A
Better SORTA <https://www.itjungle.com/2012/01/25/fhg012512-story02/> )

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