Re: void mpz_set_GEN(mpz_ptr z, GEN x) and GEN mpz_get_GEN(mpz_srcptr z)

[hermann@stamm-wilbrandt.de]

On 2023-06-19 02:29, hermann@stamm-wilbrandt.de wrote:
> > While it works, there is an unmap error on freeing resources.
> > How to fix that?
> Just compiled on Intel Linux, and there no munmap error happens ...
>
> c++$ f=sqrtm1.smallest_known_1million_digit_prime
> c++$ g++ $f.cc -lgmp -lgmpxx -O3 -o $f -lpari -DPARI
> c++$ ./sqrtm1.smallest_known_1million_digit_prime
> a = y^(-1) (mod p) [powm]; a *= x; a %= p
> 0.253261s
> [M,V] = halfgcdii(sqrtm1, p)
> 0.274745s
> [x,y] = [V[2], M[2,1]]
> 9.1e-05s
> done
> c++$
Sorry, after getting the gist, unmap() error on Intel Linux as well:

c++$ f=sqrtm1.smallest_known_1million_digit_prime
c++$ g++ $f.cc -lgmp -lgmpxx -O3 -o $f -lpari -DPARI
c++$ ./sqrtm1.smallest_known_1million_digit_prime
a = y^(-1) (mod p) [powm]; a *= x; a %= p
0.249453s
[M,V] = halfgcdii(sqrtm1, p)
0.271674s
[x,y] = [V[2], M[2,1]]
0s
done
munmap_chunk(): invalid pointer
Aborted (core dumped)
c++$