1 /* mpz_tdiv_q_ui(quot, dividend, divisor_limb)
2 -- Divide DIVIDEND by DIVISOR_LIMB and store the result in QUOT.
4 Copyright (C) 1991, 1993, 1994, 1996 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 Library General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or (at your
11 option) any later version.
13 The GNU MP Library is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
16 License for more details.
18 You should have received a copy of the GNU Library General Public License
19 along with the GNU MP Library; see the file COPYING.LIB. If not, write to
20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
21 MA 02111-1307, USA. */
28 mpz_tdiv_q_ui (mpz_ptr quot, mpz_srcptr dividend, unsigned long int divisor)
30 mpz_tdiv_q_ui (quot, dividend, divisor)
33 unsigned long int divisor;
36 mp_size_t dividend_size;
40 dividend_size = dividend->_mp_size;
41 size = ABS (dividend_size);
49 /* No need for temporary allocation and copying if QUOT == DIVIDEND as
50 the divisor is just one limb, and thus no intermediate remainders
53 if (quot->_mp_alloc < size)
54 _mpz_realloc (quot, size);
56 quot_ptr = quot->_mp_d;
58 mpn_divmod_1 (quot_ptr, dividend->_mp_d, size, (mp_limb_t) divisor);
60 /* The quotient is SIZE limbs, but the most significant might be zero. */
61 size -= quot_ptr[size - 1] == 0;
62 quot->_mp_size = dividend_size >= 0 ? size : -size;