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45 lines
1.8 KiB
C
45 lines
1.8 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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// Name: wx/checkeddelete.h
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// Purpose: wxCHECKED_DELETE() macro
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// Author: Vadim Zeitlin
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// Created: 2009-02-03
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// Copyright: (c) 2002-2009 wxWidgets dev team
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_CHECKEDDELETE_H_
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#define _WX_CHECKEDDELETE_H_
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#include "wx/cpp.h"
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// TODO: provide wxCheckedDelete[Array]() template functions too
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// ----------------------------------------------------------------------------
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// wxCHECKED_DELETE and wxCHECKED_DELETE_ARRAY macros
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// ----------------------------------------------------------------------------
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/*
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checked deleters are used to make sure that the type being deleted is really
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a complete type.: otherwise sizeof() would result in a compile-time error
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do { ... } while ( 0 ) construct is used to have an anonymous scope
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(otherwise we could have name clashes between different "complete"s) but
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still force a semicolon after the macro
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*/
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#define wxCHECKED_DELETE(ptr) \
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wxSTATEMENT_MACRO_BEGIN \
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typedef char complete[sizeof(*ptr)] WX_ATTRIBUTE_UNUSED; \
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delete ptr; \
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wxSTATEMENT_MACRO_END
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#define wxCHECKED_DELETE_ARRAY(ptr) \
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wxSTATEMENT_MACRO_BEGIN \
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typedef char complete[sizeof(*ptr)] WX_ATTRIBUTE_UNUSED; \
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delete [] ptr; \
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wxSTATEMENT_MACRO_END
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#endif // _WX_CHECKEDDELETE_H_
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