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
42
43
44
45
46
47
/*
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 "fmpz.h"
#include "fq_nmod_mpoly_factor.h"
int fq_nmod_mpoly_factor_expand(
fq_nmod_mpoly_t A,
const fq_nmod_mpoly_factor_t f,
const fq_nmod_mpoly_ctx_t ctx)
{
int success = 1;
slong i;
fq_nmod_mpoly_t t1, t2;
fq_nmod_mpoly_init(t1, ctx);
fq_nmod_mpoly_init(t2, ctx);
fq_nmod_mpoly_set_fq_nmod(A, f->constant, ctx);
for (i = 0; i < f->num; i++)
{
if (fmpz_sgn(f->exp + i) < 0 ||
!fq_nmod_mpoly_pow_fmpz(t1, f->poly + i, f->exp + i, ctx))
{
success = 0;
goto cleanup;
}
fq_nmod_mpoly_mul(t2, A, t1, ctx);
fq_nmod_mpoly_swap(A, t2, ctx);
}
cleanup:
fq_nmod_mpoly_clear(t1, ctx);
fq_nmod_mpoly_clear(t2, ctx);
return success;
}