Is there a simpler way to ensure arguments fit in integers?

You get the arguments as strings from @ARGV, and as long as you don't treat them as numbers, Perl will keep them as strings, allowing you to use string comparison operations:

use warnings;
use strict;

my $x = shift;
length($x) && $x=~/\A[0-9]+\z/ or die "Need a non-negative integer";
my $y = "1000000000000000000000000000000000000000"; # just for demo

die "Integer too big" if length($x)>length($y)
    or sprintf("%0*s", length($y), $x) gt $y;
print "$x is ok\n";

# *now* you can treat $x like a number

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In reply to Re: Number too big to fit in integer by haukex
in thread Number too big to fit in integer by jpl

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