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Current File : /usr/lib64/perl5/Math/BigInt/FastCalc.pm
package Math::BigInt::FastCalc;
use 5.006;
use strict;
use warnings;
use Math::BigInt::Calc 1.997;
use vars '$VERSION';
$VERSION = '0.30';
##############################################################################
# global constants, flags and accessory
# announce that we are compatible with MBI v1.83 and up
sub api_version () { 2; }
# use Calc to override the methods that we do not provide in XS
for my $method (qw/
str num
add sub mul div
rsft lsft
mod modpow modinv
gcd
pow root sqrt log_int fac nok
digit check
from_hex from_bin from_oct as_hex as_bin as_oct
zeros base_len
xor or and
alen 1ex
/)
{
no strict 'refs';
*{'Math::BigInt::FastCalc::_' . $method} = \&{'Math::BigInt::Calc::_' . $method};
}
require XSLoader;
XSLoader::load(__PACKAGE__, $VERSION, Math::BigInt::Calc::_base_len());
##############################################################################
##############################################################################
1;
__END__
=pod
=head1 NAME
Math::BigInt::FastCalc - Math::BigInt::Calc with some XS for more speed
=head1 SYNOPSIS
Provides support for big integer calculations. Not intended to be used by
other modules. Other modules which sport the same functions can also be used
to support Math::BigInt, like L<Math::BigInt::GMP> or L<Math::BigInt::Pari>.
=head1 DESCRIPTION
In order to allow for multiple big integer libraries, Math::BigInt was
rewritten to use library modules for core math routines. Any module which
follows the same API as this can be used instead by using the following:
use Math::BigInt lib => 'libname';
'libname' is either the long name ('Math::BigInt::Pari'), or only the short
version like 'Pari'. To use this library:
use Math::BigInt lib => 'FastCalc';
Note that from L<Math::BigInt> v1.76 onwards, FastCalc will be loaded
automatically, if possible.
=head1 STORAGE
FastCalc works exactly like Calc, in stores the numbers in decimal form,
chopped into parts.
=head1 METHODS
The following functions are now implemented in FastCalc.xs:
_is_odd _is_even _is_one _is_zero
_is_two _is_ten
_zero _one _two _ten
_acmp _len
_inc _dec
__strip_zeros _copy
=head1 LICENSE
This program is free software; you may redistribute it and/or modify it under
the same terms as Perl itself.
=head1 AUTHORS
Original math code by Mark Biggar, rewritten by Tels L<http://bloodgate.com/>
in late 2000.
Separated from BigInt and shaped API with the help of John Peacock.
Fixed, sped-up and enhanced by Tels http://bloodgate.com 2001-2003.
Further streamlining (api_version 1 etc.) by Tels 2004-2007.
Bug-fixing by Peter John Acklam E<lt>pjacklam@online.noE<gt> 2010-2011.
=head1 SEE ALSO
L<Math::BigInt>, L<Math::BigFloat>,
L<Math::BigInt::GMP>, L<Math::BigInt::FastCalc> and L<Math::BigInt::Pari>.
=cut