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/*
Copyright (C) 2012 Fredrik Johansson
This file is part of Arb.
Arb 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 2.1 of the License, or
(at your option) any later version. See <http://www.gnu.org/licenses/>.
*/
#include "arb_poly.h"
int
arb_poly_contains_fmpq_poly(const arb_poly_t poly1, const fmpq_poly_t poly2)
{
slong i;
fmpq_t t;
if (poly2->length > poly1->length)
return 0;
fmpq_init(t);
for (i = 0; i < poly2->length; i++)
{
fmpq_poly_get_coeff_fmpq(t, poly2, i);
if (!arb_contains_fmpq(poly1->coeffs + i, t))
{
fmpq_clear(t);
return 0;
}
}
fmpq_clear(t);
for (i = poly2->length; i < poly1->length; i++)
if (!arb_contains_zero(poly1->coeffs + i))
return 0;
return 1;
}
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