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Annotation of OpenXM_contrib/gmp/mpz/cmpabs_ui.c, Revision 1.1.1.1

1.1       maekawa     1: /* mpz_cmpabs_ui.c -- Compare a mpz_t a with an mp_limb_t b.  Return positive,
                      2:   zero, or negative based on if a > b, a == b, or a < b.
                      3:
                      4: Copyright (C) 1991, 1993, 1994, 1995, 1997, 2000 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: int
                     28: #if __STDC__
                     29: mpz_cmpabs_ui (mpz_srcptr u, unsigned long int v_digit)
                     30: #else
                     31: mpz_cmpabs_ui (u, v_digit)
                     32:      mpz_srcptr u;
                     33:      unsigned long int v_digit;
                     34: #endif
                     35: {
                     36:   mp_size_t usize = u->_mp_size;
                     37:
                     38:   if (usize == 0)
                     39:     return -(v_digit != 0);
                     40:
                     41:   usize = ABS (usize);
                     42:
                     43:   if (usize == 1)
                     44:     {
                     45:       mp_limb_t u_digit;
                     46:
                     47:       u_digit = u->_mp_d[0];
                     48:       if (u_digit > v_digit)
                     49:        return 1;
                     50:       if (u_digit < v_digit)
                     51:        return -1;
                     52:       return 0;
                     53:     }
                     54:
                     55:   return 1;
                     56: }