Bug or Feature?


Syntactic Confectionery Delight
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by Sec (Monk)

on Feb 22, 2006 at 14:17 UTC ( [id://531968]=perlmeditation: print w/replies, xml )

Need Help??

While debugging some code, I stumbled upon an interesting tidbit:

$b=chop($a="128");
print $b!= ($a & $b) ?"Just another ":"Perl hacker!\n";
print $b!= ($a & $b) ?"Just another ":"Perl hacker!\n";
[download]

I since figured out why it happens. Can you?

Comment on Bug or Feature? Download Code

Replies are listed 'Best First'.
Re: Bug or Feature? by blokhead (Monsignor) on Feb 22, 2006 at 15:07 UTC
Very interesting, and clever to make a JAPH out of it! <Reveal this spoiler or all in this thread> blokhead	[reply] [d/l]
Re: Bug or Feature? by Aristotle (Chancellor) on Feb 22, 2006 at 16:03 UTC
A bit of both. This is an interaction between bitwise integer ops vs bitwise string ops and how strings and numbers are autoconverted to each other and how the respective string/integer values are cached separately within a single scalar (cf. Scalar::Util::dualvar). Makeshifts last the longest.	[reply]
Re: Bug or Feature? by sh1tn (Priest) on Feb 23, 2006 at 01:15 UTC
Or maybe just: `print$_=$_&1?"Perl hacker!":"Just another ",$_?"Perl hacker!":"Just an +other "` [download]	[reply] [d/l]

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