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I was fascinated by the use of the $| "output autoflush". I usually use '$| = 1;' or '++$|;' for the scripts I write on Windows. So I tried the same.

my $str = 'xx556xx'; my @x = grep --$|, $str =~ m/((.)\2*)/g; my @y = grep ++$|, $str =~ m/((.)\2*)/g; print join ',', @x; print "\n"; print join ',', @y;

The output being:



I was somewhat suprised as all the documentation I've seen for '$|' says a non-zero value will force fflush after every 'write' or 'print' statement. I assumed the behavior would be the same for positive and negative values. What gives?


In reply to Re^2: Elegant way to split into sequences of identical chars? by bioMan
in thread Elegant way to split into sequences of identical chars? by pKai

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