Zero an mpz_t?
aarcane at gmail.com
Mon Dec 19 00:53:20 CET 2011
On 12/18/2011 12:56, Marc Glisse wrote:
> On Sun, 18 Dec 2011, james at jamesbb.co.uk wrote:
>> Is there a way to 'zero' an mpz_t integer, such that all of the bytes
>> used to
>> store the number are overwritten?
>> I'm assuming that assigning the value of 0 will not do this, but I
>> might be
> obviously, you can do it by hand (see
> http://gmplib.org/manual/Integer-Internals.html), but gmp doesn't
> provide an interface to do that because there is no (arithmetic)
> reason to do such a thing.
> It is hard to give better advice without knowing what your exact goal is.
I'd like to request an interface to do exactly what the OP requested,
AND/OR to trim the internals to minimum storage requirements. The
reasons are purely application design time. Seems as fine a time as
any, also, to re-request a compact, stable, binary import/export format
as well for on disk storage.
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