The way I read the perldoc, a constant is "a subroutine with an empty prototype" which never changes its return value! There is a clear difference: compare 

sub foo () { 17 }

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with 
sub bar () { rand(10) }

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Deparsing use of both functions in code shows a clear difference in the way Perl treats each one.

In reply to Re: •Re: Is it possible to distinguish contstants from normal subs? by ariels
in thread Is it possible to distinguish contstants from normal subs? by samtregar

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