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Re: on Topic
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From:
Larry Wall
Date:
November 7, 2002 14:56
Subject:
Re: on Topic
Message ID:
20021107225634.GB18496@wall.org
On Thu, Nov 07, 2002 at 01:36:07PM -0600, Me wrote:
: > is *1* _all_ that topic is about ?
:
: Sorta. To quote an excellent summary:
:
: "Topic is $_".
A "real" topicalizer also sets a topicalizer scope that can be broken out of.
: > also
: >
: > @a := ( $a, $b)
:
: Er, I don't think (it makes sense that) you
: can bind to a literal.
Well, it makes as much sense as binding it in a function parameter. In this
case it'd be equivalent to
@a := [ $a, $b ]
That is, it's bound to a temporary.
: > $b := $c
: > @a[1] = 10 ;
: > print $c # prints 10
No, the [...] copies values upon composing the anonymous array.
Larry
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