83 lines
2.7 KiB
C
83 lines
2.7 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) 2008, 2009 William Hart
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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_scalar_submul, T) (TEMPLATE(T, struct) * rop,
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const TEMPLATE(T, struct) * op, slong len,
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const TEMPLATE(T, t) x,
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const TEMPLATE(T, ctx_t) ctx)
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{
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if (TEMPLATE(T, is_zero) (x, ctx))
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return;
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if (TEMPLATE(T, is_one) (x, ctx))
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{
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_TEMPLATE(T, poly_sub) (rop, rop, len, op, len, ctx);
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}
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else
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{
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slong i;
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TEMPLATE(T, t) t;
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TEMPLATE(T, init) (t, ctx);
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for (i = 0; i < len; i++)
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{
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TEMPLATE(T, mul) (t, op + i, x, ctx);
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TEMPLATE(T, sub) (rop + i, rop + 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_scalar_submul, T) (TEMPLATE(T, poly_t) rop,
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const TEMPLATE(T, poly_t) op,
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const TEMPLATE(T, t) x,
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const TEMPLATE(T, ctx_t) ctx)
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{
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if (!
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(TEMPLATE(T, is_zero) (x, ctx) || TEMPLATE(T, poly_is_zero) (op, ctx)))
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{
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TEMPLATE(T, poly_fit_length) (rop, op->length, ctx);
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_TEMPLATE3(T, poly_scalar_submul, T) (rop->coeffs, op->coeffs,
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op->length, x, ctx);
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_TEMPLATE(T, poly_set_length) (rop, FLINT_MAX(rop->length, op->length),
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ctx);
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_TEMPLATE(T, poly_normalise) (rop, ctx);
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}
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}
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#endif
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