subs - Perl pragma to predeclare sub names
use subs qw(frob); frob 3..10;
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
See Pragmatic Modules and strict subs.
If rather than formatting bugs, you encounter substantive content errors in these documents, such as mistakes in the explanations or code, please use the perlbug utility included with the Perl distribution.