[Ecm-dev] Licensing woes
woltman at alum.mit.edu
Mar 10 Mai 20:26:16 CEST 2005
At 06:14 AM 5/10/2005, Paul Zimmermann wrote:
>Which functionalities of those two packages do you need/use?
>Is efficiency critical?
>Did you try MPFR (www.mpfr.org) to replace the quad-double package?
>For giantint, doesn't GMP provide the same functionality? Both MPFR
>and GMP are LGPL.
I only use a few functions. Sin, cos, exp, modular inverse, gcd. Speed is not
very important as it all happens at setup.
Those libraries might work but have a high integration cost - especially since
GMP won't work in an MSVC environment - which is what I use. I also cannot
in prime95, since prime95 has those silly prize rules. Creating "virtually
shouldn't be this hard!
I've asked Dr. Crandall if I can ship the modified giants under the
GPL. Since he
gives the code away for free anyway, I'm hopeful we'll get a positive
keep you posted.
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