Re^5: Show different text based on random number

[choroba]

> to visually tell at glance locally (same file) defined subroutines

That seems to be your convention, but Perl allows you to &-sigilize an imported subroutine:

#!/usr/bin/perl
use warnings;
use strict;
use feature qw{ say };

use POSIX;

say &ceil(1.23);