105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
/****************************************************************************
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __FOUNDATION_SCOPED_PTR_H__
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#define __FOUNDATION_SCOPED_PTR_H__
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// scoped_ptr mimics a built-in pointer except that it guarantees deletion
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// of the object pointed to, either on destruction of the scoped_ptr or via
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// an explicit reset(). scoped_ptr is a simple solution for simple needs;
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// use shared_ptr or std::auto_ptr if your needs are more complex.
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#include "core/debug.h" // - for n_assert
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#include "memory/memory.h" // - for check_delete
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template<typename T>
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class ScopedPtr // noncopyable
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{
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public:
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typedef T element_type;
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explicit ScopedPtr( T* p = 0 )
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: px( p )
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{
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// empty
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}
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~ScopedPtr()
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{
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checked_ndelete( px );
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}
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void reset(T* p = 0)
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{
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n_assert( p == 0 || p != px ); // catch self-reset errors
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this_type(p).swap(*this);
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}
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T& operator*() const
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{
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n_assert( px != 0 );
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return *px;
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}
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T* operator->() const
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{
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n_assert( px != 0 );
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return px;
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}
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T* get() const
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{
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return px;
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}
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void swap(ScopedPtr & b)
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{
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T* tmp = b.px;
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b.px = px;
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px = tmp;
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}
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private:
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T* px;
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ScopedPtr(ScopedPtr const &);
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ScopedPtr & operator=(ScopedPtr const &);
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typedef ScopedPtr<T> this_type;
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void operator==( ScopedPtr const& ) const;
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void operator!=( ScopedPtr const& ) const;
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};
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template<typename Type>
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inline void ResetScopedPtrWithDefualtObject(ScopedPtr<Type>& scopedPtr)
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{
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scopedPtr.reset(n_new(Type));
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}
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#endif // __FOUNDATION_SCOPED_PTR_H__
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