1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
/*
Copyright (C) 2020 Daniel Schultz
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "nmod_poly.h"
#include "fq_nmod.h"
void fq_nmod_rand(fq_nmod_t rop, flint_rand_t state, const fq_nmod_ctx_t ctx)
{
const slong d = fq_nmod_ctx_degree(ctx);
slong i;
nmod_poly_fit_length(rop, d);
for (i = 0; i < d; i++)
rop->coeffs[i] = n_randint(state, ctx->mod.n);
_nmod_poly_set_length(rop, d);
_nmod_poly_normalise(rop);
}
void fq_nmod_rand_not_zero(fq_nmod_t rop, flint_rand_t state, const fq_nmod_ctx_t ctx)
{
int tries = 3;
do {
fq_nmod_rand(rop, state, ctx);
if (!fq_nmod_is_zero(rop, ctx))
return;
} while (--tries >= 0);
fq_nmod_one(rop, ctx);
}