Too big?

robert44444uk has asked for the wisdom of the Perl Monks concerning the following question:

Dear Monks A happy new year to you all. I have a small problem, the following script works well with say primorial(47) but fails on primorial(53). Is there a workaround?

#!/usr/bin/env perl
use warnings;
use strict;
use Math::BigFloat lib=>"GMP";
use Math::GMPz;
use Math::Prime::Util qw/:all/;

my $fact = Math::GMPz->new(primorial(53));

                print "$fact\n";
[download]

I get the response: C:\perl>test1.pl Inappropriate argument supplied to new() at C:/Strawberry/perl/site/lib/Math/GMP z.pm line 197.

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Re: Too big? by danaj (Friar) on Jan 02, 2016 at 09:50 UTC
primorial returns either a native int or a Math::BigInt object, depending on size. Math::GMPz's new() doesn't like Math::BigInt objects. One workaround is adding `"".` before primorial, which will force it into a string regardless of the type. E.g. `say Math::GMPz->new("".primorial(53));`	[reply]
Re^2: Too big? by robert44444uk (Acolyte) on Jan 02, 2016 at 10:48 UTC
Many thanks danaj - fix works!	[reply]