48 lines
1.5 KiB
C
48 lines
1.5 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 Fredrik Johansson
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******************************************************************************/
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#include "fmpq.h"
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int
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_fmpq_mod_fmpz(fmpz_t res, const fmpz_t num, const fmpz_t den, const fmpz_t mod)
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{
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int result;
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fmpz_t tmp;
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fmpz_init(tmp);
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result = fmpz_invmod(tmp, den, mod);
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fmpz_mul(tmp, tmp, num);
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fmpz_mod(res, tmp, mod);
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fmpz_clear(tmp);
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return result;
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}
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int fmpq_mod_fmpz(fmpz_t res, const fmpq_t x, const fmpz_t mod)
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{
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return _fmpq_mod_fmpz(res, fmpq_numref(x), fmpq_denref(x), mod);
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}
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