mirror of
https://github.com/vale981/arb
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41 lines
968 B
C
41 lines
968 B
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 "arb_poly.h"
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void
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_arb_poly_reverse(arb_ptr res, arb_srcptr poly, slong len, slong n)
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{
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if (res == poly)
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{
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slong i;
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for (i = 0; i < n / 2; i++)
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{
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arb_struct t = res[i];
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res[i] = res[n - 1 - i];
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res[n - 1 - i] = t;
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}
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for (i = 0; i < n - len; i++)
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arb_zero(res + i);
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}
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else
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{
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slong i;
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for (i = 0; i < n - len; i++)
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arb_zero(res + i);
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for (i = 0; i < len; i++)
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arb_set(res + (n - len) + i, poly + (len - 1) - i);
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}
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}
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