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- /* mpz_mdiv -- Mathematical DIVision and MODulo, i.e. division that rounds
- the quotient towards -infinity.
-
- Copyright (C) 1991, 1992 Free Software Foundation, Inc.
-
- This file is part of the GNU MP Library.
-
- The GNU MP Library is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- The GNU MP Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with the GNU MP Library; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "gmp.h"
- #include "gmp-impl.h"
-
- void
- #ifdef __STDC__
- mpz_mdiv (MP_INT *quot,
- const MP_INT *dividend, const MP_INT *divisor)
- #else
- mpz_mdiv (quot, dividend, divisor)
- MP_INT *quot;
- const MP_INT *dividend;
- const MP_INT *divisor;
- #endif
- {
- if ((dividend->size ^ divisor->size) >= 0)
- {
- /* When the dividend and the divisor has same sign, this function
- gives same result as mpz_div. */
- mpz_div (quot, dividend, divisor);
- }
- else
- {
- MP_INT rem;
-
- MPZ_TMP_INIT (&rem, 1 + ABS (dividend->size));
-
- mpz_divmod (quot, &rem, dividend, divisor);
- if (rem.size != 0)
- mpz_sub_ui (quot, quot, 1);
- }
- }
-