More on secret perl operators: http://search.cpan.org/~book/perlsecret-1.012/lib/perlsecret.pod
Heed the word of warning!
Chris
On Sat, 28 Feb 2015, Trevor Cordes wrote:
I had to confirm what $x=!!$y meant in perl. Remarkably, typing !! or "!!" or !! into google gives you nothing. Had to use English.
Got this:
http://stackoverflow.com/questions/2168406/what-does-double-exclamation-poin...
The +42 answer is quite good. Exec summary: !! is good for cleaning vars into 1 (true) or '' (false), which is important to keep warnings from complaining about undef vars.
Anyhow, read the comments in the +42 answer. Hehehe.
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