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From: ccount@athena.mit.edu (Craig A Counterman)
Newsgroups: comp.lang.perl
Subject: print @ar; bug or feature
Message-ID: <1990Jun7.031545.27669@athena.mit.edu>
Date: 7 Jun 90 03:15:45 GMT
Sender: news@athena.mit.edu (News system)
Organization: Massachusetts Institute of Technology
Lines: 15

Is this a bug?  It doesn't matter much to me, but someone pointed it
out, an now I really would like to know why this is so.

perl -e '$ar[0] = 3;$ar[3] = 5;$\="\n";print @ar;print "@ar";'

prints "33   5".  Why?  It prints @ar only till it hits an undefined
element, but interpolating the @ar in a string constant works as it
should.  print @ar also fails to print the newline.

It looks like 'print @ar' is at some point expanding to
"3\000\000\0005\n", and only the part till the first nul is being
printed.

Curiously,
Craig