From: Martin Rodgers
Subject: Re: malloc in hardware?
Date: 
Message-ID: <MPG.f857a2c8b7da7bd9899bd@news.demon.co.uk>
Robin Garner wheezed these wise words:

> What I'm saying is that tools that make the edit/compile/debug
> cycle quicker encourage people to do just that rather than
> think about the problem.

Good development tools encourage programmers to change the code when 
they discover major design flaws. For example, throwing away large 
chunks of code and replacing it with new code.

This may happen when the design spec changes, but it may also happen 
when a programmer uses the insights they've gained, from writing the 
code so far, to redesign and improve the code. It's not simply a bad 
habit used by poor programmers. Some problems don't even have a spec.

The fact that some programmers are lazy is no excuse for making tools 
hard to use. It is possible to think about a problem and write code to 
solve it using friendly tools. The development cycle is sometimes not 
as simple as edit/compile/debug. For many programmers, it can be more 
like edit/compile/debug/demo. The feedback from users goes back into 
the development of the code. Thus, no static spec.

This may possibly explain the popularity of Rapid Application 
Development tools. Alternately, perhaps there are just a lot of lazy 
programmers (and no users)?

BTW, I'm crossposting this to comp.lang.lisp, as this is a subject 
that comes up from time to time in that ng. However, we tend to look 
at it from a different perspective, probably because we have a lot of 
neat tools that make the edit/compile/debug very short indeed.
-- 
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From: Robin Garner
Subject: Re: malloc in hardware?
Date: 
Message-ID: <351FA52B.47EA6F9E@assetservices.com-junk.au>
Martin Rodgers wrote:
> 
> Robin Garner wheezed these wise words:
> 
> > What I'm saying is that tools that make the edit/compile/debug
> > cycle quicker encourage people to do just that rather than
> > think about the problem.
> 
> Good development tools encourage programmers to change the code when
> they discover major design flaws. For example, throwing away large
> chunks of code and replacing it with new code.
[more in the same vein snipped]

No argument with any of this.

The initial reason for this tangential subthread was to
counter the assertion that faster processors implied 
faster code because you could test your code more
thoroughly.

Perhaps I was too facetious (for USENET, at least) in 
suggesting  that slowing down the tail end of the development 
process improved software quality, although I _have_ observed 
things that suggest this to me, and seen papers to support
this, although I can't find them at the moment.  
The point remains that software quality is best improved 
early in the process rather than later.

> BTW, I'm crossposting this to comp.lang.lisp, as this is a subject
> that comes up from time to time in that ng. However, we tend to look
> at it from a different perspective, probably because we have a lot of
> neat tools that make the edit/compile/debug very short indeed.

I wish you hadn't.  I've put followups to comp.lang.lisp only,
because I don't want to be responsible for degrading the 
comp.arch S/N ratio any more.

-- 
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