76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Copyright (C) 1992, Microsoft Corporation.
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//
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// File: smartp.hxx
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//
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// Contents: Class and associated macros for generic smart pointer
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// capability.
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//
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// Classes: XIUnknown
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// XMem
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//
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// History: 30-Mar-92 MikeSe Created
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// 6-Oct-92 MikeSe Added XMem and related macros.
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//
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// Notes: All of the interesting stuff from here is now in safepnt.hxx
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// which should be used in preference. The following correspondences
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// exist between the macros defined here and those in safepnt,
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// should you wish to convert to avoid the (deliberately) annoying
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// warning:
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//
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// DefineSmartItfP(class) == SAFE_INTERFACE_PTR(Xclass,class)
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// DefineSmartMemP(class,NO_ARROW) == SAFE_MEMALLOC_MEMPTR(Xclass,class)
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// DefineSmartMemP(class,DEFINE_ARROW) == SAFE_MEMALLOC_PTR(Xclass,class)
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//
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//----------------------------------------------------------------------------
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#ifndef __SMARTP_HXX__
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#define __SMARTP_HXX__
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// #include <types.hxx>
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#include <safepnt.hxx>
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//+-------------------------------------------------------------------------
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//
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// Macro: DefineSmartItfP
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//
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// Purpose: Macro to define smart pointer to an IUnknown derivative.
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//
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// Notes: The smart pointer so defined has a fixed name consisting of
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// X (for eXception-safe) prefixed to the name of the pointed-to
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// class. If you want to choose the name, you should use the
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// SAFE_INTERFACE_PTR macro in safepnt.hxx.
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//
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//--------------------------------------------------------------------------
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#define DefineSmartItfP(cls) SAFE_INTERFACE_PTR(X##cls,cls)
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DefineSmartItfP(IUnknown)
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// For backwards compatibility
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#define DefineSmartP(cls) DefineSmartItfP(cls)
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//+-------------------------------------------------------------------------
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//
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// Macro: DefineSmartMemP
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//
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// Purpose: Macro to define smart pointer to any MemAlloc'ed structure
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//
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// Notes: This macro is used to define a smart pointer to any structure
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// allocated using MemAlloc. Invocation is as follows:
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//
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// DefineSmartMemP(SWCStringArray,arrow_spec)
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//
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// where arrow_spec is DEFINE_ARROW if the pointed-to type
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// supports a member-of (->) operator, and NO_ARROW if
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// it does not. (EG: use NO_ARROW for WCString).
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//
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//--------------------------------------------------------------------------
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#define _MEM_DEFINE_ARROW(cls) SAFE_MEMALLOC_PTR(X##cls,cls)
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#define _MEM_NO_ARROW(cls) SAFE_MEMALLOC_MEMPTR(X##cls,cls)
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#define DefineSmartMemP(cls,arrow) _MEM_##arrow(cls)
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#endif // of ifndef __SMARTP_HXX__
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