xref: /dragonfly/contrib/gmp/mpz/cmpabs.c (revision d2d4b659)

/* mpz_cmpabs(u,v) -- Compare U, V.  Return positive, zero, or negative
   based on if U > V, U == V, or U < V.

Copyright 1991, 1993, 1994, 1996, 1997, 2000, 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 Lesser General Public License as published by
the Free Software Foundation; either version 3 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 Lesser General Public
License for more details.

You should have received a copy of the GNU Lesser General Public License
along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */

#include "gmp.h"
#include "gmp-impl.h"


int
mpz_cmpabs (mpz_srcptr u, mpz_srcptr v) __GMP_NOTHROW
{
  mp_size_t  usize, vsize, dsize;
  mp_srcptr  up, vp;
  int        cmp;

  usize = ABSIZ (u);
  vsize = ABSIZ (v);
  dsize = usize - vsize;
  if (dsize != 0)
    return dsize;

  up = PTR(u);
  vp = PTR(v);
  MPN_CMP (cmp, up, vp, usize);
  return cmp;
}