CoinFinite.hpp

/* $Id: CoinFinite.hpp 1423 2011-04-30 10:17:48Z stefan $ */
// Copyright (C) 2002, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).

/* Defines COIN_DBL_MAX and relatives and provides CoinFinite and CoinIsnan. */

#ifndef CoinFinite_H
#define CoinFinite_H

#include <limits>

//=============================================================================
// Smallest positive double value and Plus infinity (double and int)

#if 1
const double COIN_DBL_MIN = std::numeric_limits<double>::min();
const double COIN_DBL_MAX = std::numeric_limits<double>::max();
const int    COIN_INT_MAX = std::numeric_limits<int>::max();
const double COIN_INT_MAX_AS_DOUBLE = std::numeric_limits<int>::max();
#else
#define COIN_DBL_MIN (std::numeric_limits<double>::min())
#define COIN_DBL_MAX (std::numeric_limits<double>::max())
#define COIN_INT_MAX (std::numeric_limits<int>::max())
#define COIN_INT_MAX_AS_DOUBLE (std::numeric_limits<int>::max())
#endif

/** checks if a double value is finite (not infinity and not NaN) */
extern bool CoinFinite(double val);

/** checks if a double value is not a number */
extern bool CoinIsnan(double val);

#endif