mirror of
https://github.com/vale981/arb
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42 lines
1 KiB
C
42 lines
1 KiB
C
/*
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Copyright (C) 2012 Fredrik Johansson
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This file is part of Arb.
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Arb is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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*/
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#include "acb_poly.h"
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int
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_acb_poly_overlaps(acb_srcptr poly1, slong len1,
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acb_srcptr poly2, slong len2)
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{
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slong i;
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for (i = 0; i < len2; i++)
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if (!acb_overlaps(poly1 + i, poly2 + i))
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return 0;
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for (i = len2; i < len1; i++)
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if (!acb_contains_zero(poly1 + i))
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return 0;
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return 1;
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}
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int
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acb_poly_overlaps(const acb_poly_t poly1, const acb_poly_t poly2)
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{
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slong len1 = poly1->length;
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slong len2 = poly2->length;
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if (len1 >= len2)
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return _acb_poly_overlaps(poly1->coeffs, len1, poly2->coeffs, len2);
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else
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return _acb_poly_overlaps(poly2->coeffs, len2, poly1->coeffs, len1);
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}
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