Re: unusual OR syntax

Richard Riley wrote:
"Peter H. Coffin" <hellsop@xxxxxxxxxxxxx> writes:

On Fri, 27 Nov 2009 18:02:34 +0100, Richard Riley wrote:

Erwin Moller
<Since_humans_read_this_I_am_spammed_too_much@xxxxxxxxxxxxxxxx> writes:

Richard Riley schreef:

Erwin Moller
<Since_humans_read_this_I_am_spammed_too_much@xxxxxxxxxxxxxxxx>
writes:

A lot of uncertainty, that is why I don't like the approach. The
same can be achieved without using short circuit evaluation, thus
avoiding all these assumptions and possible confusion. [end story
from my early programming days]
There is no uncertainty. It's a feature of the language. Not using
the features of the language is a crime in itself.
What you call a feature I call an annoying artifact. ;-)
Artifact?
http://www.dictionary.net/artifact NB esp. definition 4.

I know what an artifact is. Lazy evaluation is not an artifact of any
kind. It is a common sense language feature which evaluates a sequence
of expressions until one returns a non "nil" value.

No, its a simple way to turn an IF statement into machine code. That happens to have that side effect.

Saves machine code to do it that way.

That's why its in there.

Its not a feature, its a bug that was documented, and has been left in, because its efficient.
.

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