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/*
Copyright (C) 2012 Fredrik Johansson
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 "acb_poly.h"
int
_acb_poly_overlaps(acb_srcptr poly1, slong len1,
acb_srcptr poly2, slong len2)
{
slong i;
for (i = 0; i < len2; i++)
if (!acb_overlaps(poly1 + i, poly2 + i))
return 0;
for (i = len2; i < len1; i++)
if (!acb_contains_zero(poly1 + i))
return 0;
return 1;
}
int
acb_poly_overlaps(const acb_poly_t poly1, const acb_poly_t poly2)
{
slong len1 = poly1->length;
slong len2 = poly2->length;
if (len1 >= len2)
return _acb_poly_overlaps(poly1->coeffs, len1, poly2->coeffs, len2);
else
return _acb_poly_overlaps(poly2->coeffs, len2, poly1->coeffs, len1);
}