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 $str = 'xx556xx';
my @x = grep --$|, $str =~ m/((.)\2*)/g;
my @y = grep ++$|, $str =~ m/((.)\2*)/g;
print join ',', @x;
print join ',', @y;
The output being:
I was somewhat suprised as all the documentation I've seen for '$|' 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?
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