76 lines
2.3 KiB
C
76 lines
2.3 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) 2008, 2009 William Hart
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Copyright (C) 2010, 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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_TEMPLATE(T, poly_shift_right) (TEMPLATE(T, struct) * rop,
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const TEMPLATE(T, struct) * op, slong len,
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slong n, const TEMPLATE(T, ctx_t) ctx)
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{
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slong i;
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if (rop != op)
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{
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for (i = 0; i < len - n; i++)
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TEMPLATE(T, set) (rop + i, op + n + i, ctx);
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}
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else
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{
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for (i = 0; i < len - n; i++)
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TEMPLATE(T, swap) (rop + i, rop + n + i, ctx);
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}
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}
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void
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TEMPLATE(T, poly_shift_right) (TEMPLATE(T, poly_t) rop,
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const TEMPLATE(T, poly_t) op, slong n,
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const TEMPLATE(T, ctx_t) ctx)
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{
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if (n == 0)
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{
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TEMPLATE(T, poly_set) (rop, op, ctx);
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}
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else if (op->length <= n)
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{
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TEMPLATE(T, poly_zero) (rop, ctx);
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}
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else
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{
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TEMPLATE(T, poly_fit_length) (rop, op->length - n, ctx);
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_TEMPLATE(T, poly_shift_right) (rop->coeffs, op->coeffs, op->length, n,
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ctx);
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_TEMPLATE(T, poly_set_length) (rop, op->length - n, ctx);
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}
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}
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#endif
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