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Re: fprintf for GMP objects?


From: Kevin Ryde
Subject: Re: fprintf for GMP objects?
Date: 06 Apr 2001 08:28:52 +1000
User-agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/20.5

Ronald Bruck <address@hidden> writes:
>
> 1. Is there a C++ wrapper for it yet?  I'm mostly interested in the
> floating-point stuff.

There's an efficient one by Gerardo Ballabio supporting mpz, mpq and
mpf
        http://www.sissa.it/~ballabio/gmp++.html

Others have been mentioned on the address@hidden list.  Some higher
level libraries like NTL, LiDIA and CLN have options to use gmp too.

> 2. Failing that, has anyone written a relacement for fscanf and
> fprintf which will read/write GMP reals instead of doubles?

I've been having a bit of a go at a printf, but it's a distance away
from pretending to work properly.

> If nothing else, using K&R's example of how to use a variable
> argument list, intercepting the "%e" call.

Personally I'm in favour of something that can mix double and mpf_t in
one printf, so it'd be %e with an extra type letter, maybe F or maybe
a whole MPF or something.



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