Actually, you don't even need to check whether the function exists. If you take a reference to a named but undefined function, it magically works once that function is defined. Perl is devious that way. 
#!/usr/bin/perl

$_ = \&x;
*x = sub { print "Oh my\n" };
$_->();

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This actually prints "Oh my".

Makeshifts last the longest.

In reply to Re^3: use deprecated; by Aristotle
in thread use deprecated; by halley

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