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/*=============================================================================
This file is part of FLINT.
FLINT 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 of the License, or
(at your option) any later version.
FLINT 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 FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/*****************************************************************************
Copyright (C) 2009 William Hart
******************************************************************************/
#include <gmp.h>
#include "flint.h"
#include "ulong_extras.h"
#include "fmpz.h"
int
fmpz_cmp(const fmpz_t f, const fmpz_t g)
{
int sign;
if (f == g)
return 0; /* aliased inputs */
if (!COEFF_IS_MPZ(*f))
{
if (!COEFF_IS_MPZ(*g))
{
return (*f < *g ? -1 : *f > *g);
}
else /* f is small, g is large */
{
sign = mpz_sgn(COEFF_TO_PTR(*g));
return (*f >= 0 && sign < 0) ? 1 : -sign;
}
}
else
{
if (!COEFF_IS_MPZ(*g)) /* f is large, and g is small */
{
sign = mpz_sgn(COEFF_TO_PTR(*f));
return (*g >= 0 && sign < 0) ? -1 : sign;
}
else
return mpz_cmp(COEFF_TO_PTR(*f), COEFF_TO_PTR(*g));
}
}
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