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File: [Pegasus] / pegasus / src / Pegasus / Common / Attic / Destroyer.h
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Revision: 1.8, Tue Jul 10 21:31:13 2001 UTC (22 years, 11 months ago) by mike Branch: MAIN CVS Tags: version_1_01, version_0_99_1, version_0_99, main Branch point for: dev Changes since 1.7: +99 -99 lines Removed \r\r\n from all files. |
//%///////////////////////////////////////////////////////////////////////////// // // Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to // deal in the Software without restriction, including without limitation the // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or // sell copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. // //============================================================================== // // Author: Mike Brasher (mbrasher@bmc.com) // // Modified By: // //%///////////////////////////////////////////////////////////////////////////// #ifndef Pegasus_Destroyer_h #define Pegasus_Destroyer_h #include <Pegasus/Common/Config.h> PEGASUS_NAMESPACE_BEGIN /** This class provides a convenient way of disposing of a heap object. It automatically deletes the enclosed pointer on destruction. For example: <pre> A* a = new A; Destroyer<A> dummy = a; </pre> When the destroyer object destructs, it frees the instance of A. This is particularly useful when a function has multiple returns. There are two classes here: Destroyer<> and ArrayDestroyer<>. The ArrayDestroyer<> class is used when a pointer must be deleted using the array form as shown below: <pre> delete [] ptr; <pre> */ template<class T> class Destroyer { public: Destroyer(T* ptr) : _ptr(ptr) { } ~Destroyer() { delete _ptr; } T* getPointer() { return _ptr; } private: Destroyer(const Destroyer&) { } Destroyer& operator=(const Destroyer&) { return *this; } T* _ptr; }; template<class T> class ArrayDestroyer { public: ArrayDestroyer(T* ptr) : _ptr(ptr) { } ~ArrayDestroyer() { delete [] _ptr; } T* getPointer() { return _ptr; } ArrayDestroyer(const ArrayDestroyer<T>&) { } ArrayDestroyer<T>& operator=(const ArrayDestroyer<T>&) { return *this; } private: T* _ptr; }; PEGASUS_NAMESPACE_END #endif /* Pegasus_Destroyer_h */
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