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#!/usr/bin/perl
#
# Straight from the synopsis.
#
use strict;
use constant PI => 4 * atan2(1, 1);
use constant DEBUG => 0;
print "Pi equals ", PI, "...\n" if DEBUG;
use constant {
SEC => 0,
MIN => 1,
HOUR => 2,
MDAY => 3,
MON => 4,
YEAR => 5,
WDAY => 6,
YDAY => 7,
ISDST => 8,
};
use constant WEEKDAYS => qw(
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
);
print "Today is ", (WEEKDAYS)[ (localtime)[WDAY] ], ".\n";