CrystalSpace

Public API Reference

csutil/scopedpointer.h
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00001 /*
00002   Copyright (C) 2007-2011 by Frank Richter
00003 
00004   This library is free software; you can redistribute it and/or
00005   modify it under the terms of the GNU Library General Public
00006   License as published by the Free Software Foundation; either
00007   version 2 of the License, or (at your option) any later version.
00008 
00009   This library is distributed in the hope that it will be useful,
00010   but WITHOUT ANY WARRANTY; without even the implied warranty of
00011   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012   Library General Public License for more details.
00013 
00014   You should have received a copy of the GNU Library General Public
00015   License along with this library; if not, write to the Free
00016   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 #ifndef __CSUTIL_SCOPEDPOINTER_H__
00019 #define __CSUTIL_SCOPEDPOINTER_H__
00020 
00025 #include "csutil/noncopyable.h"
00026 
00027 namespace CS
00028 {
00029 namespace Utility
00030 {
00031 
00036   template<class T>
00037   class ScopedPointer : private NonCopyable
00038   {
00039     T* ptr;
00040   public:
00045     ScopedPointer (T* ptr = nullptr) : ptr (ptr) {}
00047     ~ScopedPointer() { delete ptr; }
00048 
00053     void Reset (T* ptr = nullptr)
00054     {
00055       delete this->ptr;
00056       this->ptr = ptr;
00057     }
00059     void Invalidate() { Reset(); }
00061     bool IsValid() const { return ptr != (T*)nullptr; }
00062   
00064     T* operator -> () const
00065     { return ptr; }
00066     
00068     operator T* () const
00069     { return ptr; }
00070     
00072     T& operator* () const
00073     { return *ptr; }
00074   
00075   };
00076 
00077 } // namespace Utility
00078 } // namespace CS
00079 
00080 #endif // __CSUTIL_SCOPEDPOINTER_H__

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