1 /* mpz_mdivmod -- Mathematical DIVision and MODulo, i.e. division that rounds
2 the quotient towards -infinity, and with the remainder non-negative.
4 Copyright (C) 1991, 1992 Free Software Foundation, Inc.
6 This file is part of the GNU MP Library.
8 The GNU MP Library is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 The GNU MP Library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with the GNU MP Library; see the file COPYING. If not, write to
20 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
27 mpz_mdivmod_ui (MP_INT *quot, MP_INT *rem,
28 const MP_INT *dividend, unsigned long int divisor)
30 mpz_mdivmod_ui (quot, rem, dividend, divisor)
33 const MP_INT *dividend;
34 unsigned long int divisor;
37 MP_INT temp_rem; /* N.B.: lives until function returns! */
39 /* If the user doesn't want the remainder to be stored in an integer
40 object, allocate a scratch variable for it. */
43 MPZ_TMP_INIT (&temp_rem, 1 + ABS (dividend->size));
47 mpz_divmod_ui (quot, rem, dividend, divisor);
51 mpz_sub_ui (quot, quot, 1);
52 mpz_add_ui (rem, rem, divisor);