Annotation of OpenXM_contrib/gmp/mpz/tdiv_ui.c, Revision 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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