Does anybody know? This is definitely not the behaviour I expect. I could accept a syntax error, but this is just bizzre; 

!~~
seems equivalent to 
~~
... and there's more...

use 5.10.0;
use strict;
use warnings (FATAL => 'all');

my $a = "hello";
my $b = "hello";

print "a matches b\n" if($a ~~ $b);
print "a not matches b\n" if($a !~~ $b);
print "a matches not b\n" if($a ~~! $b);
print "a matches and a half b\n" if($a ~~~ $b);
print "a not matches and a half b\n" if($a !~~~ $b);
print "a double matches b\n" if($a ~~~~ $b);
print "a not double matches b\n" if($a !~~~~ $b);

[download]

This yields;

a matches b
a not matches b
a double matches b
a not double matches b

Does anybody know why?

In reply to Why is to match, not to match? by CRAKRJACK

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