It took me a long time to see the cause of this, (but it was processing 1 GB of data), and I thought it might prove interesting/amusing to others.

Greatly simplified from the original that was processing data from a file, this program never terminates. Can you see why? 

#! perl -slw
use strict;

my @bits = unpack '(a3)*', 'abcdefghijklmnopqrstuvwxyz';

1 while "@bits[3,5,7]" =~ m[vwx]g;

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In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Program enters infinite loop, can you see why? by BrowserUk

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