=================================================================== RCS file: /home/cvs/OpenXM_contrib/gmp/mpz/Attic/cmp_ui.c,v retrieving revision 1.1 retrieving revision 1.1.1.3 diff -u -p -r1.1 -r1.1.1.3 --- OpenXM_contrib/gmp/mpz/Attic/cmp_ui.c 2000/01/10 15:35:27 1.1 +++ OpenXM_contrib/gmp/mpz/Attic/cmp_ui.c 2003/08/25 16:06:33 1.1.1.3 @@ -1,21 +1,22 @@ /* mpz_cmp_ui.c -- Compare a mpz_t a with an mp_limb_t b. Return positive, zero, or negative based on if a > b, a == b, or a < b. -Copyright (C) 1991, 1993, 1994, 1995 Free Software Foundation, Inc. +Copyright 1991, 1993, 1994, 1995, 1996, 2001, 2002 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 +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 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 +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. -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 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ @@ -23,34 +24,47 @@ MA 02111-1307, USA. */ #include "gmp.h" #include "gmp-impl.h" -/* gmp.h defines a macro for mpz_cmp_ui. */ -#undef mpz_cmp_ui - int -#if __STDC__ -mpz_cmp_ui (mpz_srcptr u, unsigned long int v_digit) -#else -mpz_cmp_ui (u, v_digit) - mpz_srcptr u; - unsigned long int v_digit; -#endif +_mpz_cmp_ui (mpz_srcptr u, unsigned long int v_digit) { - mp_size_t usize = u->_mp_size; + mp_ptr up; + mp_size_t un; + mp_limb_t ul; - if (usize == 0) + up = PTR(u); + un = SIZ(u); + + if (un == 0) return -(v_digit != 0); - if (usize == 1) + if (un == 1) { - mp_limb_t u_digit; - - u_digit = u->_mp_d[0]; - if (u_digit > v_digit) + ul = up[0]; + if (ul > v_digit) return 1; - if (u_digit < v_digit) + if (ul < v_digit) return -1; return 0; } - return (usize > 0) ? 1 : -1; +#if GMP_NAIL_BITS != 0 + if (v_digit > GMP_NUMB_MAX) + { + if (un == 2) + { + ul = up[0] + (up[1] << GMP_NUMB_BITS); + + if ((up[1] >> GMP_NAIL_BITS) != 0) + return 1; + + if (ul > v_digit) + return 1; + if (ul < v_digit) + return -1; + return 0; + } + } +#endif + + return un > 0 ? 1 : -1; }