p5MathGMP
high speed arbitrarysize integer math
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Package versionp5MathGMP2.25

MaintainerThe OpenBSD ports mailinglist
Math::GMP is designed to be a dropin replacement both for Math::BigInt
and for regular integer arithmetic. Unlike BigInt, though, Math::GMP
uses the GNU gmp library for all of its calculations, as opposed
to straight Perl functions. This results in a speed increase of
anywhere from 5 to 30 times.
A Math::GMP object can be used just as a normal numeric scalar would
be  the module overloads the normal arithmetic operators to provide
as seamless an interface as possible.
 devel/p5DevelCheckLib