Took me about an hour to find code that has different output with and without that line...
But it was fun;), so I won't spoil...
$foo='hello';
for(1..5){
$foo=~/(?=(.))/g;
pos($foo)=pos($foo);
print $1
}
"The additional state of being matched with zero-length is associated with the matched string, and is reset by each assignment to pos()."
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| [reply]
[d/l] |