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Diffstat (limited to 'contrib/libgmp/mpq/cmp_ui.c')
-rw-r--r-- | contrib/libgmp/mpq/cmp_ui.c | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/contrib/libgmp/mpq/cmp_ui.c b/contrib/libgmp/mpq/cmp_ui.c deleted file mode 100644 index bdecec5..0000000 --- a/contrib/libgmp/mpq/cmp_ui.c +++ /dev/null @@ -1,84 +0,0 @@ -/* mpq_cmp_ui(u,vn,vd) -- Compare U with Vn/Vd. Return positive, zero, or - negative based on if U > V, U == V, or U < V. Vn and Vd may have - common factors. - -Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc. - -This file is part of the GNU MP Library. - -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 -the Free Software Foundation; either version 2 of the License, or (at your -option) any later version. - -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 -or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public -License for more details. - -You should have received a copy of the GNU Library General Public License -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, -MA 02111-1307, USA. */ - -#include "gmp.h" -#include "gmp-impl.h" - -/* gmp.h defines a macro for mpq_cmp_ui. */ -#undef mpq_cmp_ui - -int -#if __STDC__ -mpq_cmp_ui (const MP_RAT *op1, unsigned long int num2, unsigned long int den2) -#else -mpq_cmp_ui (op1, num2, den2) - const MP_RAT *op1; - unsigned long int num2; - unsigned long int den2; -#endif -{ - mp_size_t num1_size = op1->_mp_num._mp_size; - mp_size_t den1_size = op1->_mp_den._mp_size; - mp_size_t tmp1_size, tmp2_size; - mp_ptr tmp1_ptr, tmp2_ptr; - mp_size_t num1_sign; - mp_limb_t cy_limb; - int cc; - TMP_DECL (marker); - - if (num1_size == 0) - return -(num2 != 0); - if (num1_size < 0) - return num1_size; - if (num2 == 0) - return num1_size; - - num1_sign = num1_size; - num1_size = ABS (num1_size); - - /* NUM1 x DEN2 is either TMP1_SIZE limbs or TMP1_SIZE-1 limbs. - Same for NUM1 x DEN1 with respect to TMP2_SIZE. */ - if (num1_size > den1_size + 1) - /* NUM1 x DEN2 is surely larger in magnitude than NUM2 x DEN1. */ - return num1_sign; - if (den1_size > num1_sign + 1) - /* NUM1 x DEN2 is surely smaller in magnitude than NUM2 x DEN1. */ - return -num1_sign; - - TMP_MARK (marker); - tmp1_ptr = (mp_ptr) TMP_ALLOC ((num1_size + 1) * BYTES_PER_MP_LIMB); - tmp2_ptr = (mp_ptr) TMP_ALLOC ((den1_size + 1) * BYTES_PER_MP_LIMB); - - cy_limb = mpn_mul_1 (tmp1_ptr, op1->_mp_num._mp_d, num1_size, den2); - tmp1_ptr[num1_size] = cy_limb; - tmp1_size = num1_size + (cy_limb != 0); - - cy_limb = mpn_mul_1 (tmp2_ptr, op1->_mp_den._mp_d, den1_size, num2); - tmp2_ptr[den1_size] = cy_limb; - tmp2_size = den1_size + (cy_limb != 0); - - cc = tmp1_size - tmp2_size != 0 - ? tmp1_size - tmp2_size : mpn_cmp (tmp1_ptr, tmp2_ptr, tmp1_size); - TMP_FREE (marker); - return (num1_sign < 0) ? -cc : cc; -} |