1 //%/////////////////////////////////////////////////////////////////////////////
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3 // Copyright (c) 2000, 2001 The Open group, BMC Software, Tivoli Systems, IBM
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5 // Permission is hereby granted, free of charge, to any person obtaining a copy
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6 // of this software and associated documentation files (the "Software"), to
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7 // deal in the Software without restriction, including without limitation the
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8 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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9 // sell copies of the Software, and to permit persons to whom the Software is
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10 // furnished to do so, subject to the following conditions:
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12 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
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13 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
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14 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
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15 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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16 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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17 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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18 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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19 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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21 //==============================================================================
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23 // Author: Mike Brasher (mbrasher@bmc.com)
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27 //%/////////////////////////////////////////////////////////////////////////////
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29 #ifndef Pegasus_Destroyer_h
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30 #define Pegasus_Destroyer_h
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32 #include <Pegasus/Common/Config.h>
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34 PEGASUS_NAMESPACE_BEGIN
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37 This class provides a convenient way of disposing of a heap object.
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38 It automatically deletes the enclosed pointer on destruction. For
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43 Destroyer<A> dummy = a;
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46 When the destroyer object destructs, it frees the instance of A.
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47 This is particularly useful when a function has multiple returns.
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49 There are two classes here: Destroyer<> and ArrayDestroyer<>. The
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50 ArrayDestroyer<> class is used when a pointer must be deleted using the
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51 array form as shown below:
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62 Destroyer(T* ptr) : _ptr(ptr) { }
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64 ~Destroyer() { delete _ptr; }
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66 T* getPointer() { return _ptr; }
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70 Destroyer(const Destroyer&) { }
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72 Destroyer& operator=(const Destroyer&) { return *this; }
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78 class ArrayDestroyer
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82 ArrayDestroyer(T* ptr) : _ptr(ptr) { }
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84 ~ArrayDestroyer() { delete [] _ptr; }
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86 T* getPointer() { return _ptr; }
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88 ArrayDestroyer(const ArrayDestroyer<T>&) { }
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90 ArrayDestroyer<T>& operator=(const ArrayDestroyer<T>&) { return *this; }
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97 PEGASUS_NAMESPACE_END
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99 #endif /* Pegasus_Destroyer_h */
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