mirror of
https://github.com/vale981/arb
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55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*=============================================================================
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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
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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ARB is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with ARB; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2012 Fredrik Johansson
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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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