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- /* mpn_cmp -- Compare two low-level natural-number integers.
-
- Copyright (C) 1991, 1992 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 General Public License as published by
- the Free Software Foundation; either version 2, 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with the GNU MP Library; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "gmp.h"
- #include "gmp-impl.h"
-
- /* Compare OP1_PTR/OP1_SIZE with OP2_PTR/OP2_SIZE.
- There are no restrictions on the relative sizes of
- the two arguments.
- Return 1 if OP1 > OP2, 0 if they are equal, and -1 if OP1 < OP2. */
-
- int
- #ifdef __STDC__
- mpn_cmp (mp_srcptr op1_ptr, mp_srcptr op2_ptr, mp_size size)
- #else
- mpn_cmp (op1_ptr, op2_ptr, size)
- mp_srcptr op1_ptr;
- mp_srcptr op2_ptr;
- mp_size size;
- #endif
- {
- mp_size i;
- mp_limb op1_word, op2_word;
-
- for (i = size - 1; i >= 0; i--)
- {
- op1_word = op1_ptr[i];
- op2_word = op2_ptr[i];
- if (op1_word != op2_word)
- goto diff;
- }
- return 0;
- diff:
- return (op1_word > op2_word) ? 1 : -1;
- }
-