Annotation of OpenXM_contrib/gmp/mpz/tdiv_ui.c, Revision 1.1.1.1
1.1 maekawa 1: /* mpz_tdiv_ui(dividend, divisor_limb)
2: -- Return DIVDEND mod DIVISOR_LIMB.
3:
4: Copyright (C) 1991, 1993, 1994, 1996, 1997, 1998 Free Software Foundation,
5: Inc.
6:
7: This file is part of the GNU MP Library.
8:
9: The GNU MP Library is free software; you can redistribute it and/or modify
10: it under the terms of the GNU Lesser General Public License as published by
11: the Free Software Foundation; either version 2.1 of the License, or (at your
12: option) any later version.
13:
14: The GNU MP Library is distributed in the hope that it will be useful, but
15: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16: or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17: License for more details.
18:
19: You should have received a copy of the GNU Lesser General Public License
20: along with the GNU MP Library; see the file COPYING.LIB. If not, write to
21: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22: MA 02111-1307, USA. */
23:
24: #include "gmp.h"
25: #include "gmp-impl.h"
26:
27: unsigned long int
28: #if __STDC__
29: mpz_tdiv_ui (mpz_srcptr dividend, unsigned long int divisor)
30: #else
31: mpz_tdiv_ui (dividend, divisor)
32: mpz_srcptr dividend;
33: unsigned long int divisor;
34: #endif
35: {
36: mp_size_t dividend_size;
37: mp_size_t size;
38: mp_limb_t remainder_limb;
39:
40: if (divisor == 0)
41: DIVIDE_BY_ZERO;
42:
43: dividend_size = dividend->_mp_size;
44: size = ABS (dividend_size);
45:
46: /* No need for temporary allocation and copying if QUOT == DIVIDEND as
47: the divisor is just one limb, and thus no intermediate remainders
48: need to be stored. */
49:
50: remainder_limb = mpn_mod_1 (dividend->_mp_d, size, (mp_limb_t) divisor);
51:
52: return remainder_limb;
53: }
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