ScopedPtr.h

#ifndef UTIL_SCOPED_PTR_H
#define UTIL_SCOPED_PTR_H

/*
* Util Package - C++ Utilities for Scientific Computation
*
* Copyright 2010 - 2017, The Regents of the University of Minnesota
* Distributed under the terms of the GNU General Public License.
*/

#include <util/global.h>

namespace Util
{

   template <typename T>
   class ScopedPtr
   {

   public:

      typedef T element_type;

      explicit ScopedPtr(T* p = 0)
      {  ptr_ = p; }

      ~ScopedPtr()
      {
         if (ptr_ != 0) {  
            delete ptr_; 
         }
      }

      void reset(T* p = 0)
      {
         if (ptr_ != 0) {
            delete ptr_;
         }  
         ptr_ = p;
      }

      T& operator*() const
      {  return *ptr_; }

      T* operator->() const
      {  return ptr_; }

      T* get() const
      {  return ptr_; }

   private:

      T* ptr_;

      ScopedPtr(const ScopedPtr&);

      ScopedPtr& operator = (const ScopedPtr& );

   };

   template <typename T>
   inline bool isNull(ScopedPtr<T> p)
   {  return (p.get() == 0); }

}
#endif