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