132 lines
3.2 KiB
C
132 lines
3.2 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) 2011 Sebastian Pancratz
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******************************************************************************/
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#include "fmpz_mat.h"
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#include "padic_poly.h"
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#include "padic_mat.h"
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static void
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_padic_mat_canonicalise_fmpz(fmpz *vec, slong len, slong *val, const fmpz_t p)
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{
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int nonzero = 0;
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slong i;
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for (i = 0; i < len; i++)
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{
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if (vec[i] != WORD(0))
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{
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nonzero = 1;
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if (!fmpz_divisible(vec + i, p))
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{
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return;
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}
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}
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}
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if (nonzero)
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{
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_fmpz_vec_scalar_divexact_fmpz(vec, vec, len, p);
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(*val)++;
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while (1)
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{
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for (i = 0; i < len; i++)
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{
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if (!fmpz_divisible(vec + i, p))
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{
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return;
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}
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}
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_fmpz_vec_scalar_divexact_fmpz(vec, vec, len, p);
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(*val)++;
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}
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}
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else
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{
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*val = 0;
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}
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}
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static void
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_padic_mat_canonicalise_si(fmpz *vec, slong len, slong *val, slong p)
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{
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int nonzero = 0;
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slong i;
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for (i = 0; i < len; i++)
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{
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if (vec[i] != WORD(0))
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{
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nonzero = 1;
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if (!fmpz_divisible_si(vec + i, p))
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{
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return;
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}
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}
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}
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if (nonzero)
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{
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_fmpz_vec_scalar_divexact_ui(vec, vec, len, p);
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(*val)++;
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while (1)
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{
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for (i = 0; i < len; i++)
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{
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if (!fmpz_divisible_si(vec + i, p))
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{
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return;
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}
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}
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_fmpz_vec_scalar_divexact_ui(vec, vec, len, p);
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(*val)++;
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}
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}
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else
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{
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*val = 0;
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}
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}
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void _padic_mat_canonicalise(padic_mat_t A, const padic_ctx_t ctx)
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{
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if (COEFF_IS_MPZ(*(ctx->p)))
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{
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_padic_mat_canonicalise_fmpz(padic_mat(A)->entries,
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padic_mat(A)->r * padic_mat(A)->c,
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&(A->val), ctx->p);
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}
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else
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{
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_padic_mat_canonicalise_si(padic_mat(A)->entries,
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padic_mat(A)->r * padic_mat(A)->c,
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&(A->val), *(ctx->p));
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}
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}
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