package Math::Pari;
my %shift = ( k => 10, K => 10, m => 20, M => 20, g => 30, G=> 30);
sub _human2decimal {
local $_ = shift;
$_ <<= $shift{$1} if s/([kmg])$//i;
$_
}
sub Math::PariInit::import {
my $seen;
CORE::shift;
my @args = map {
/^:?(primes|stack)=(\d+((\.\d*)?[eE][-+]?\d+)?)[kKmMgG]?$/
? do { ($1 eq 'primes' ? $initprimes : $initmem) = _human2decimal $2;
$seen++;
() }
: $_
} @_;
if ($seen && defined &Math::Pari::pari2iv) {
require Carp;
Carp::croak(
"Can't set primelimit and stack size after Math::Pari is loaded")
}
require Math::Pari;
@_ = ('Math::Pari', @args);
goto &Math::Pari::import;
}
1;
=head1 NAME
Math::PariInit - load C<Math::Pari> with specified $primelimit and $initmem.
=head1 SYNOPSIS
use Math::PariInit qw(:DEFAULT :int primes=1.2e7 stack=1e7 prime)
$bigprime = prime(500000);
=head1 DESCRIPTION
C<use Math::PariInit> takes the same arguments as C<use Math::Pari>
with the addition of C<:primes=I<limit>> and C<:stack=I<bytes>> which
specify up to which number the initial list of primes should be
precalculated, and how large should be the arena for PARI calculations.
The arguments C<primes> and C<stack> cannot be specified if
Math::Pari is already loaded.
=head1 AUTHOR
Ilya Zakharevich L<ilyaz@cpan.org>
=cut
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