aslUValue.h

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/*
 * Advanced Simulation Library <http://asl.org.il>
 * 
 * Copyright 2015 Avtech Scientific <http://avtechscientific.com>
 *
 *
 * This file is part of Advanced Simulation Library (ASL).
 *
 * ASL is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, version 3 of the License.
 *
 * ASL 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with ASL. If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
 
#ifndef ASLUVALUE_H
#define ASLUVALUE_H
 
#include "aslTimeStamp.h"
#include <memory>
 
namespace asl
{

  template<typename T> class UValue
  {
    public:
      std::shared_ptr<T> p;
      TimeStamp ts;
      inline explicit UValue():p(new T){}
      inline explicit UValue(const T & a):p(new T(a)){ts.update();}
      inline const T & operator=(const T& a){ts.update(); return (*p = a);}
      inline const T & v() const {return *p;};
      inline T & v() {return *p;};
  };

  template<typename T> inline bool operator==(const asl::UValue<T> & a,const T & v);
  template<typename T> inline bool operator!=(const asl::UValue<T> & a,const T & v);
 
//-------------------------- Implementation --------------------------
 
 
  template<typename T> inline bool operator==(const asl::UValue<T> & a,const T & v)
  {
    return *(a.p) == v;
  }
 
  template<typename T> inline bool operator!=(const asl::UValue<T> & a,const T & v)
  {
    return *(a.p) != v;
  }
  
} //namespace asl
 
 
#endif // ASLUVALUE_H