/home/coin/SVN-release/CoinAll-1.1.0/CoinUtils/src/CoinFinite.hpp

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// Copyright (C) 2002, International Business Machines
// Corporation and others.  All Rights Reserved.

// Also put all base defines here e.g. VC++ pragmas
#ifndef CoinFinite_H
#define CoinFinite_H

#include "CoinUtilsConfig.h"

#include <cstdlib>
#ifdef HAVE_CMATH
# include <cmath>
#else
# ifdef HAVE_MATH_H
#  include <math.h>
# else
#  error "don't have header file for math"
# endif
#endif

#ifdef HAVE_CFLOAT
# include <cfloat>
#else
# ifdef HAVE_FLOAT_H
#  include <float.h>
# endif
#endif

#ifdef HAVE_CIEEEFP
# include <cieeefp>
#else
# ifdef HAVE_IEEEFP_H
#  include <ieeefp.h>
# endif
#endif

#include <algorithm>

//=============================================================================
#if COIN_BIG_INDEX==0
typedef int CoinBigIndex;
#elif COIN_BIG_INDEX==1
typedef long CoinBigIndex;
#else
typedef long long CoinBigIndex;
#endif

//=============================================================================
// Plus infinity (double and int)
#ifndef COIN_DBL_MAX
#define COIN_DBL_MAX DBL_MAX
#endif

#ifndef COIN_INT_MAX
#define COIN_INT_MAX ((int)((~((unsigned int)0)) >> 1))
#endif

//=============================================================================

#if defined(_MSC_VER)
//  # define CoinIsnan   _isnan
//  # define CoinFinite  _finite
// Turn off compiler warning about long names
#  pragma warning(disable:4786)
#if !defined(min)
#define min(a,b)  (((a) < (b)) ? (a) : (b))
#endif
#if !defined(max)
#define max(a,b)  (((a) > (b)) ? (a) : (b))
#endif
#else
// Put standard min and max here
using std::min;
using std::max;
#endif

//=============================================================================

inline bool CoinFinite(double val)
{
#ifdef MY_C_FINITE
  //    return static_cast<bool>(MY_C_FINITE(val));
    return MY_C_FINITE(val)!=0;
#else
    return val != DBL_MAX && val != -DBL_MAX;
#endif
}

//=============================================================================

inline bool CoinIsnan(double val)
{
#ifdef MY_C_ISNAN
  //    return static_cast<bool>(MY_C_ISNAN(val));
    return MY_C_ISNAN(val)!=0;
#else
    return false;
#endif
}

//=============================================================================

#endif

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