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Re: Using GMP for BigIntegers.

To: "Mark J. Roberts" <mjr at statesmean dot com>
Subject: Re: Using GMP for BigIntegers.
From: Bryce McKinlay <bryce at albatross dot co dot nz>
Date: Tue, 30 Jan 2001 18:09:09 +1300
CC: java at gcc dot gnu dot org
References: <Pine.LNX.4.32.0101292152040.868-100000@rm03-24-131-185-22.ce.mediaone.net>

"Mark J. Roberts" wrote:

> I have some problems with the BigInteger support in GCJ.
>
> It's broken, and it's slow. In one test case:
>
> GMP:  14 milliseconds per modPow. // compiled with GCJ using CNI
> IBM:  38 milliseconds per modPow.
> GCJ: 212 milliseconds per modPow. // wrong result due to bug

Hmm. Can you post the test case?

> So, is GMP in your future?

GMP was actually the original plan. Then Per donated his pure-Java
implementation, so we decided to use that instead. So basically: Yes. If you
want to implement it, I for one would be keen to see it in libgcj.

regards

  [ bryce ]

References:
- Using GMP for BigIntegers.
  - From: Mark J. Roberts

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