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 package in which they appear. You may not rescind such declarations with no vars
or no subs
.
See "Pragmatic Modules" in perlmodlib and "strict subs" in strict.