builtin.h

Go to the documentation of this file.

/*
   For more information, please see: http://software.sci.utah.edu

   The MIT License

   Copyright (c) 2009 Scientific Computing and Imaging Institute,
   University of Utah.

   
   Permission is hereby granted, free of charge, to any person obtaining a
   copy of this software and associated documentation files (the "Software"),
   to deal in the Software without restriction, including without limitation
   the rights to use, copy, modify, merge, publish, distribute, sublicense,
   and/or sell copies of the Software, and to permit persons to whom the
   Software is furnished to do so, subject to the following conditions:

   The above copyright notice and this permission notice shall be included
   in all copies or substantial portions of the Software.

   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
   THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   DEALINGS IN THE SOFTWARE.
*/

/*
 *@file  builtin.h
 *
 *@author
 *   Yarden Livnat
 *   Department of Computer Science
 *   University of Utah
 *@date  March 2001
 *
 *@brief Classes for built in datatypes
 */

#ifndef builtin_h
#define builtin_h

#include <Core/Datatypes/Legacy/Base/TypeName.h>
#include <Core/Persistent/Persistent.h>

namespace SCIRun {

class Scalar {
public:
  virtual ~Scalar() {}
  virtual operator char() = 0;
  virtual operator short() = 0;
  virtual operator int() = 0;
  virtual operator float() = 0;
  virtual operator double() = 0;
};

template<class T>
class ScalarType : public Scalar{
public:
  T val_;
  
  ScalarType() {}
  ScalarType( T v ) : val_(v) {}

  void operator=( const ScalarType &copy ) { val_ = copy.val_;}
  operator char()   { return char(val_); }
  operator short()  { return short(val_); }
  operator int()    { return int(val_); }
  operator float()  { return float(val_); }
  operator double() { return double(val_); }
};

typedef ScalarType<char>   Char;
typedef ScalarType<unsigned char>   UChar;
typedef ScalarType<short>  Short;
typedef ScalarType<unsigned short>  UShort;
typedef ScalarType<int>    Int;
typedef ScalarType<unsigned int>    UInt;
typedef ScalarType<long long> LongLong;
typedef ScalarType<float>  Float;
typedef ScalarType<double> Double;

inline void Pio(Piostream& stream, Char& d)  {Pio(stream,d.val_);}
inline void Pio(Piostream& stream, UChar& d) {Pio(stream,d.val_);}
inline void Pio(Piostream& stream, Short& d) {Pio(stream,d.val_);}
inline void Pio(Piostream& stream, UShort& d){Pio(stream,d.val_);}
inline void Pio(Piostream& stream, Int& d)   {Pio(stream,d.val_);}
inline void Pio(Piostream& stream, UInt& d)  {Pio(stream,d.val_);}
inline void Pio(Piostream& stream, Float& d) {Pio(stream,d.val_);}
inline void Pio(Piostream& stream, Double& d){Pio(stream,d.val_);}
inline void Pio(Piostream& stream, LongLong& d){Pio(stream,d.val_);}

inline const std::string find_type_name(Char*)  {return find_type_name(static_cast<char *>(0));}
inline const std::string find_type_name(UChar*) {return find_type_name(static_cast<unsigned char *>(0));}
inline const std::string find_type_name(Short*) {return find_type_name(static_cast<short *>(0));}
inline const std::string find_type_name(UShort*){return find_type_name(static_cast<unsigned short *>(0));}
inline const std::string find_type_name(Int*)   {return find_type_name(static_cast<int *>(0));}
inline const std::string find_type_name(UInt*)  {return find_type_name(static_cast<unsigned int *>(0));}
inline const std::string find_type_name(Float*) {return find_type_name(static_cast<float *>(0));}
inline const std::string find_type_name(Double*){return find_type_name(static_cast<double *>(0));}
inline const std::string find_type_name(LongLong*){return find_type_name(static_cast<double *>(0));}

template<class T> bool is_scalar() { return false; }
template<> inline bool is_scalar<char>() { return true; }
template<> inline bool is_scalar<unsigned char>() { return true; }
template<> inline bool is_scalar<short>() { return true; }
template<> inline bool is_scalar<unsigned short>() { return true; }
template<> inline bool is_scalar<int>() { return true; }
template<> inline bool is_scalar<float>() { return true; }
template<> inline bool is_scalar<double>() { return true; }

} // end namespace SCIRun

#endif // builtin_h