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Re: Data structures in ocaml
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Date: 1999-10-13 (06:59)
From: skaller <skaller@m...>
Subject: Re: Data structures in ocaml
Lyn A Headley wrote:

> Python "lists" are based on arrays, so I believe the performance is as
> follows (some of these functions don't really exists, but would be
> "faked" using slices or somesuch):

> append_lists([l1, l2, ... ln]) not sure if this exists.  The naive
> implementation using "+" would be quadratic.

That's an interesting observation: thanks for pointing it
out. In fact, expressions like

	x = a + b + c + d

are common manipulating strings in Python. Because I represent this
as a list, _not_ recursively, I can get linear performance,
if there is a way to preallocate the storage. [I can't remember
off hand if the 'Buffer' class allows this]. I can also do it 
for (python) lists, using Varray.

John Skaller, mailto:skaller@maxtal.com.au
1/10 Toxteth Rd Glebe NSW 2037 Australia
homepage: http://www.maxtal.com.au/~skaller
downloads: http://www.triode.net.au/~skaller