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From: hansm@cs.kun.nl (Hans Mulder)
Newsgroups: comp.lang.perl
Subject: Re: alpha numbers
Message-ID: <3708@wn1.sci.kun.nl>
Date: 26 Jun 91 14:20:37 GMT
Article-I.D.: wn1.3708
References: <1991Jun23.200134.18835@pronto.mh.nl> 	<1991Jun24.231628.14446@jpl-devvax.jpl.nasa.gov> <1991Jun25.134732.1668@pronto.mh.nl>
Sender: root@sci.kun.nl
Organization: University of Nijmegen, The Netherlands
Lines: 26

In <1991Jun25.134732.1668@pronto.mh.nl> jv@mh.nl (Johan Vromans) writes:
>(Tom Christiansen) writes:
>| Okay, tell me the correct value for this:
>| 
>| 	$a = "1e0";
>| 	$a++;

>If $a is a valid number, use aritmetic. Otherwise, treat it as a string
>and use magical increment.

Are you sure you want this?  Consider:

$a="1d8";

print ++$a;	# prints 1d9

print ++$a;	# prints 1e0

print ++$a;	# prints 2, since $a is now numeric.

Magical increment, indeed.

--
$level="novice"; ++$level; ++$level; ++$level; print "Just another Perl $level,"

Hans Mulder	hansm@cs.kun.nl