75 lines
2.5 KiB
C
75 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) 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_iterated_frobenius_preinv) (TEMPLATE(T, poly_t) * rop,
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slong n,
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const TEMPLATE(T, poly_t) v,
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const TEMPLATE(T, poly_t) vinv,
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const TEMPLATE(T, ctx_t) ctx)
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{
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slong i;
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fmpz_t q;
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TEMPLATE(T, mat_t) HH;
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fmpz_init(q);
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TEMPLATE(T, ctx_order) (q, ctx);
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TEMPLATE(T, poly_gen) (rop[0], ctx);
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if (TEMPLATE(CAP_T, POLY_ITERATED_FROBENIUS_CUTOFF) (ctx, v->length))
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{
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TEMPLATE(T, mat_init) (HH, n_sqrt(v->length - 1) + 1, v->length - 1,
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ctx);
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TEMPLATE(T, poly_powmod_fmpz_sliding_preinv) (rop[1], rop[0], q, 0, v,
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vinv, ctx);
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TEMPLATE(T, poly_precompute_matrix) (HH, rop[1], v, vinv, ctx);
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for (i = 2; i < n; i++)
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{
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TEMPLATE(T, poly_compose_mod_brent_kung_precomp_preinv)
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(rop[i], rop[i - 1], HH, v, vinv, ctx);
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}
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TEMPLATE(T, mat_clear) (HH, ctx);
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}
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else
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{
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for (i = 1; i < n; i++)
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TEMPLATE(T, poly_powmod_fmpz_sliding_preinv) (rop[i], rop[i - 1],
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q, 0, v, vinv, ctx);
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}
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fmpz_clear(q);
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}
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#endif
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