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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;
}
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