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https://github.com/vale981/arb
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39 lines
951 B
C
39 lines
951 B
C
/*
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Copyright (C) 2015 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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void
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acb_poly_add_si(acb_poly_t res, const acb_poly_t x, slong y, slong prec)
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{
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slong len = x->length;
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if (len == 0)
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{
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acb_poly_set_si(res, y);
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}
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else
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{
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acb_poly_fit_length(res, len);
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if (y >= 0)
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acb_add_ui(res->coeffs, x->coeffs, y, prec);
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else
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acb_sub_ui(res->coeffs, x->coeffs, -y, prec);
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if (res != x)
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_acb_vec_set(res->coeffs + 1, x->coeffs + 1, len - 1);
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_acb_poly_set_length(res, len);
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_acb_poly_normalise(res);
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}
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}
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