55 lines
1.7 KiB
C
55 lines
1.7 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) 2011 Sebastian Pancratz
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******************************************************************************/
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#include "padic_poly.h"
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void _padic_poly_canonicalise(fmpz *poly, slong *v, slong len, const fmpz_t p)
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{
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const slong min = _fmpz_vec_ord_p(poly, len, p);
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if (min == 0)
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{
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if (_fmpz_vec_is_zero(poly, len))
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*v = 0;
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}
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else /* min > 0 */
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{
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fmpz_t pow;
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fmpz_init(pow);
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fmpz_pow_ui(pow, p, min);
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_fmpz_vec_scalar_divexact_fmpz(poly, poly, len, pow);
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fmpz_clear(pow);
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*v += min;
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}
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}
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void padic_poly_canonicalise(padic_poly_t poly, const fmpz_t p)
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{
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_padic_poly_canonicalise(poly->coeffs, &(poly->val), poly->length, p);
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}
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