reading binary file content into an mpz_t variable

[foxmuldrster at yahoo.com]

They very possibly can and should be used. I do not know.

As I say, I am a relative newbie and there are those on this list FAR better  
equipped to respond.

- Rick

-----Original message-----
From: Gabriel Risterucci <gabriel.risterucci at univmed.fr>
To: "foxmuldrster at yahoo.com" <foxmuldrster at yahoo.com>
Cc: Erick Paquin <info at erickpaquin.com>, gmp-discuss at gmplib.org
Sent: Mon, Jan 17, 2011 09:29:54 GMT+00:00
Subject: Re: reading binary file content into an mpz_t variable

2011/1/17 foxmuldrster at yahoo.com <foxmuldrster at yahoo.com>

> Erick,
>
> I'm typing all this on my phone, and am also a relative GMP newbie, surely
> unable to answer these questions as skillfully as the others  here (should
> they ever choose to do so), but to my understanding:
>
> 1) Find out how many bits you'll need (file size * 8 most likely),
>
> 2) Initialize your GMP variable to that many bits of precision,
>
> 3) fread your raw file to that member variable which is the pointer (am on
> phone and do not remember its name  off the top of my head),
>

I'm not sure that this method is really stable regarding stability in future
GMP version, or use on different platforms...
Why can't the mpz_export() and mpz_import() function be used here ? They
seem to do exactly what's needed, from my understanding.