Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!hp4nl!ruuinf!henkp
From: henkp@ruuinf.cs.ruu.nl (Henk P. Penning)
Newsgroups: comp.lang.perl
Subject: bug in pipe() ?
Message-ID: <3210@ruuinf.cs.ruu.nl>
Date: 4 May 90 13:52:49 GMT
Organization: Utrecht University, Dept. of CS
Lines: 20


The program
-----
$a='aa' ; $b = 'bb' ;
pipe($a,$b) || die "can't create pipe $a/$b\n" ; 
close($a)   || die "can't close $a\n" ;
-----
outputs: can't close aa

With 'pipe(aa,$b)' instead of 'pipe($a,$b)' no output appears.
           ^                        ^ 
It seems that pipe() doesn't handle expressions
yielding FILEHANDLEs correctly.
This makes the puzzle posted by Alan Martello (reading AND
writing to a process) more difficult.
-- 
Henk P. Penning, Dept of Computer Science, Utrecht University.
Padualaan 14, P.O. Box 80.089, 3508 TB Utrecht, The Netherlands.
Telephone: +31-30-534106
e-mail   : henkp@cs.ruu.nl (uucp to hp4nl!ruuinf!henkp)