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/*
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_mod_mpoly_factor.h"
int fmpz_mod_mpoly_factor_expand(
fmpz_mod_mpoly_t A,
const fmpz_mod_mpoly_factor_t f,
const fmpz_mod_mpoly_ctx_t ctx)
{
int success = 1;
slong i;
fmpz_mod_mpoly_t t1;
fmpz_mod_mpoly_init(t1, ctx);
fmpz_mod_mpoly_set_fmpz_mod(A, f->constant, ctx);
for (i = 0; i < f->num; i++)
{
if (fmpz_sgn(f->exp + i) < 0 ||
!fmpz_mod_mpoly_pow_fmpz(t1, f->poly + i, f->exp + i, ctx))
{
success = 0;
goto cleanup;
}
fmpz_mod_mpoly_mul(A, A, t1, ctx);
}
cleanup:
fmpz_mod_mpoly_clear(t1, ctx);
return success;
}