72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
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/*=============================================================================
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This file is part of FLINT.
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FLINT 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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FLINT 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 FLINT; 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) 2010 William Hart
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Copyright (C) 2011 Fredrik Johansson
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Copyright (C) 2013 Mike Hansen
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******************************************************************************/
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#ifdef T
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#include "templates.h"
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void
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TEMPLATE(T, poly_inflate) (TEMPLATE(T, poly_t) result,
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const TEMPLATE(T, poly_t) input, ulong inflation,
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const TEMPLATE(T, ctx_t) ctx)
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{
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if (input->length <= 1 || inflation == 1)
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{
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TEMPLATE(T, poly_set) (result, input, ctx);
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}
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else if (inflation == 0)
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{
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TEMPLATE(T, t) v;
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TEMPLATE(T, init) (v, ctx);
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TEMPLATE(T, one) (v, ctx);
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TEMPLATE(T, TEMPLATE(poly_evaluate, T)) (v, input, v, ctx);
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TEMPLATE(T, poly_zero) (result, ctx);
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TEMPLATE(T, poly_set_coeff) (result, 0, v, ctx);
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TEMPLATE(T, clear) (v, ctx);
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}
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else
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{
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slong i, j, res_length = (input->length - 1) * inflation + 1;
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TEMPLATE(T, poly_fit_length) (result, res_length, ctx);
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for (i = input->length - 1; i > 0; i--)
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{
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TEMPLATE(T, set) (result->coeffs + (i * inflation),
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input->coeffs + i, ctx);
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for (j = i * inflation - 1; j > (i - 1) * inflation; j--)
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TEMPLATE(T, zero) (result->coeffs + j, ctx);
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}
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TEMPLATE(T, set) (result->coeffs, input->coeffs, ctx);
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result->length = res_length;
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}
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}
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#endif
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