gcc/gmp/mpz/cmp.c

/* mpz_cmp(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, 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/.  */

#ifdef BERKELEY_MP
#include "mp.h"
#endif
#include "gmp.h"
#include "gmp-impl.h"

int
#ifdef BERKELEY_MP
mcmp (mpz_srcptr u, mpz_srcptr v)
#else
mpz_cmp (mpz_srcptr u, mpz_srcptr v)
#endif
{
  mp_size_t  usize, vsize, dsize, asize;
  mp_srcptr  up, vp;
  int        cmp;

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

  asize = ABS (usize);
  up = PTR(u);
  vp = PTR(v);
  MPN_CMP (cmp, up, vp, asize);
  return (usize >= 0 ? cmp : -cmp);
}