FloatCast.hpp

Go to the documentation of this file.

/* ImLib3D
 * Copyright (c) 2001, ULP-IPB Strasbourg.
 *
 * This program 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.
 * 
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#ifndef _FloatCast_hpp
#define _FloatCast_hpp

#include<ImLib3D/CppTools.hpp>
#include<boost/type_traits/is_arithmetic.hpp>

template<typename T,bool isArithmetic=boost::is_arithmetic<T>::value >
struct FloatCast
{
    static float Cast(const T &)
    {
        ThrowError("FloatCast type \"%s\" was not configured to be cast to float",TypeName<T>());
        return 0;
    }
};
template<typename T>
struct FloatCast<T,true>
{
    static float Cast(const T &value)
    {
        return (float)value;
    }
};
#endif // _FloatCast_hpp

---