84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
/*=============================================================================
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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) 2012 Sebastian Pancratz
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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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_TEMPLATE3(T, poly_evaluate, T) (TEMPLATE(T, t) rop,
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const TEMPLATE(T, struct) * op, slong len,
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const TEMPLATE(T, t) a,
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const TEMPLATE(T, ctx_t) ctx)
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{
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if (len == 0)
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{
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TEMPLATE(T, zero) (rop, ctx);
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}
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else if (len == 1 || TEMPLATE(T, is_zero) (a, ctx))
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{
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TEMPLATE(T, set) (rop, op + 0, ctx);
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}
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else
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{
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slong i = len - 1;
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TEMPLATE(T, t) t;
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TEMPLATE(T, init) (t, ctx);
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TEMPLATE(T, set) (rop, op + i, ctx);
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for (i = len - 2; i >= 0; i--)
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{
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TEMPLATE(T, mul) (t, rop, a, ctx);
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TEMPLATE(T, add) (rop, op + i, t, ctx);
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}
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TEMPLATE(T, clear) (t, ctx);
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}
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}
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void
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TEMPLATE3(T, poly_evaluate, T) (TEMPLATE(T, t) rop,
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const TEMPLATE(T, poly_t) f,
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const TEMPLATE(T, t) a,
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const TEMPLATE(T, ctx_t) ctx)
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{
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if (rop == a)
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{
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TEMPLATE(T, t) t;
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TEMPLATE(T, init) (t, ctx);
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_TEMPLATE3(T, poly_evaluate, T) (t, f->coeffs, f->length, a, ctx);
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TEMPLATE(T, swap) (rop, t, ctx);
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TEMPLATE(T, clear) (t, ctx);
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}
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else
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{
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_TEMPLATE3(T, poly_evaluate, T) (rop, f->coeffs, f->length, a, ctx);
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}
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}
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#endif
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