Math-BigInt-GMP
Math::BigInt::GMP is a replacement library for Math::BigInt::Calc that
reimplements some of the Math::BigInt::Calc functions in XS. It can be used
via:
use Math::BigInt lib => 'GMP';
This package contains a replacement (drop-in) module for Math::BigInt's core,
Math::BigInt::Calc.pm.
INSTALLATION
You need to install the Gnu MP library aka libgmp to compile this module.
How to install (replace the version below with the current one):
tar -xzf Math-BigInt-GMP-1.12.tar.gz
cpansign --verify
If the signature does not verify ok, you might to install Module::Signature.
If the signature still does not verify okay, notify me. DO NO INSTALL this
package when the signature is BAD - your system might get compromised!
If the signature is good, do:
perl Makefile.PL
make
make test
make install
If you have trouble compiling this package because the GMP library is
installed in a non-standard location, try to pass the INC and LIBS
arguments to Makefile.PL with the appropriate information. Here
is an example:
perl Makefile.PL\
INC="-I/apps/perl588/site/gmp-4.2.1/include"\
LIBS="-L/apps/perl588/site/gmp-4.2.1/lib -lgmp"
To use this module, replace:
use Math::BigInt;
with this:
use Math::BigInt lib => 'GMP';
or alternatively something like:
use Math::BigInt lib => 'GMP,Pari,FastCalc';
Please read the documentation under PERFORMANCE in Math::BigInt on when to use
this module and when not. As of v1.10 and Math::BigInt v1.64/v1.64, using "lib
=> 'GMP'" will actually reduce the memory consumption of your program, and
thanks to the fact that we no longer use Math::GMP but have our own XS code,
almost all operations should be faster than just using Calc (the default
pure-perl library used in Math::BigInt).
So, the following:
use Math::BigInt lib => 'GMP';
can be heartily recommended.
SUPPORT AND DOCUMENTATION
After installing, you can find documentation for these modules with the
perldoc command.
perldoc Math::BigInt::GMP
You can also look for information at:
RT, CPAN's request tracker
http://rt.cpan.org/NoAuth/Bugs.html?Dist=Math-BigInt-GMP
AnnoCPAN, Annotated CPAN documentation
http://annocpan.org/dist/Math-BigInt-GMP
CPAN Ratings
http://cpanratings.perl.org/d/Math-BigInt-GMP
Search CPAN
http://search.cpan.org/dist/Math-BigInt-GMP
COPYRIGHT AND LICENCE
Copyright 2007-2010 Peter John Acklam
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.