version 1.1, 2000/01/10 15:35:27 |
version 1.1.1.2, 2000/09/09 14:12:59 |
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/* mpz_tdiv_q_ui(quot, dividend, divisor_limb) |
/* mpz_tdiv_q_ui(quot, dividend, divisor_limb) |
-- Divide DIVIDEND by DIVISOR_LIMB and store the result in QUOT. |
-- Divide DIVIDEND by DIVISOR_LIMB and store the result in QUOT. |
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Copyright (C) 1991, 1993, 1994, 1996 Free Software Foundation, Inc. |
Copyright (C) 1991, 1993, 1994, 1996, 1998 Free Software Foundation, Inc. |
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This file is part of the GNU MP Library. |
This file is part of the GNU MP Library. |
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The GNU MP Library is free software; you can redistribute it and/or modify |
The GNU MP Library is free software; you can redistribute it and/or modify |
it under the terms of the GNU Library General Public License as published by |
it under the terms of the GNU Lesser General Public License as published by |
the Free Software Foundation; either version 2 of the License, or (at your |
the Free Software Foundation; either version 2.1 of the License, or (at your |
option) any later version. |
option) any later version. |
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The GNU MP Library is distributed in the hope that it will be useful, but |
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 |
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public |
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
License for more details. |
License for more details. |
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You should have received a copy of the GNU Library General Public License |
You should have received a copy of the GNU Lesser General Public License |
along with the GNU MP Library; see the file COPYING.LIB. If not, write to |
along with the GNU MP Library; see the file COPYING.LIB. If not, write to |
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
MA 02111-1307, USA. */ |
MA 02111-1307, USA. */ |
Line 23 MA 02111-1307, USA. */ |
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Line 23 MA 02111-1307, USA. */ |
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#include "gmp.h" |
#include "gmp.h" |
#include "gmp-impl.h" |
#include "gmp-impl.h" |
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void |
unsigned long int |
#if __STDC__ |
#if __STDC__ |
mpz_tdiv_q_ui (mpz_ptr quot, mpz_srcptr dividend, unsigned long int divisor) |
mpz_tdiv_q_ui (mpz_ptr quot, mpz_srcptr dividend, unsigned long int divisor) |
#else |
#else |
Line 36 mpz_tdiv_q_ui (quot, dividend, divisor) |
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Line 36 mpz_tdiv_q_ui (quot, dividend, divisor) |
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mp_size_t dividend_size; |
mp_size_t dividend_size; |
mp_size_t size; |
mp_size_t size; |
mp_ptr quot_ptr; |
mp_ptr quot_ptr; |
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mp_limb_t remainder_limb; |
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if (divisor == 0) |
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DIVIDE_BY_ZERO; |
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dividend_size = dividend->_mp_size; |
dividend_size = dividend->_mp_size; |
size = ABS (dividend_size); |
size = ABS (dividend_size); |
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if (size == 0) |
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{ |
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quot->_mp_size = 0; |
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return; |
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} |
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/* No need for temporary allocation and copying if QUOT == DIVIDEND as |
/* No need for temporary allocation and copying if QUOT == DIVIDEND as |
the divisor is just one limb, and thus no intermediate remainders |
the divisor is just one limb, and thus no intermediate remainders |
need to be stored. */ |
need to be stored. */ |
Line 55 mpz_tdiv_q_ui (quot, dividend, divisor) |
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Line 53 mpz_tdiv_q_ui (quot, dividend, divisor) |
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quot_ptr = quot->_mp_d; |
quot_ptr = quot->_mp_d; |
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mpn_divmod_1 (quot_ptr, dividend->_mp_d, size, (mp_limb_t) divisor); |
remainder_limb |
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= mpn_divmod_1 (quot_ptr, dividend->_mp_d, size, (mp_limb_t) divisor); |
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/* The quotient is SIZE limbs, but the most significant might be zero. */ |
/* The quotient is SIZE limbs, but the most significant might be zero. */ |
size -= quot_ptr[size - 1] == 0; |
size -= size != 0 && quot_ptr[size - 1] == 0; |
quot->_mp_size = dividend_size >= 0 ? size : -size; |
quot->_mp_size = dividend_size >= 0 ? size : -size; |
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return remainder_limb; |
} |
} |