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subs - Perl pragma to predeclare sub names
use subs qw(frob);
frob 3..10;
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This will predeclare all the subroutine whose names are in the list, allowing you to use
them without parentheses even before they're declared.
Unlike pragmas that affect the $^H hints variable, the use vars
and use subs declarations are not BLOCK-scoped. They are thus effective for the
entire file in which they appear. You may not rescind such declarations with no vars
or no subs.
See perlmodlib/Pragmatic
Modules and strict/strict
subs.
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