Problem with gmp_randinit_set
tg at gmplib.org
Tue Feb 14 23:45:45 UTC 2017
Pedro Gimeno <gmpdiscuss at formauri.es> writes:
Torbjörn Granlund wrote, On 2017-02-14 01:41:
> One can change Mersenne_Twister_Generator_Noseed to
> Mersenne_Twister_Generator to fix this (and move __gmp_randiset_mt to
> randmts.c as mandated by Mersenne_Twister_Generator's scope), and then
> your code supposedly runs without a crash. But I don't see why one ever
> wants Mersenne_Twister_Generator_Noseed, which suggests my understanding
> of this code is very poor indeed.
It's been about 15 years ago, but my recollection is that the rationale behind the _Noseed version was to avoid a dependency on randmts.c, and it seems I neglected to consider this use case.
I agree with your fix.
I realised a serious flaw with that fix; it introduces a dependency from
mpn_random* to mpz. That's not OK, I'm afraid.
Please encrypt, key id 0xC8601622
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