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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: wx/checkeddelete.h | |
3 | // Purpose: wxCHECKED_DELETE() macro | |
4 | // Author: Vadim Zeitlin | |
5 | // Created: 2009-02-03 | |
6 | // Copyright: (c) 2002-2009 wxWidgets dev team | |
7 | // Licence: wxWindows licence | |
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | #ifndef _WX_CHECKEDDELETE_H_ | |
11 | #define _WX_CHECKEDDELETE_H_ | |
12 | ||
13 | #include "wx/cpp.h" | |
14 | ||
15 | // TODO: provide wxCheckedDelete[Array]() template functions too | |
16 | ||
17 | // ---------------------------------------------------------------------------- | |
18 | // wxCHECKED_DELETE and wxCHECKED_DELETE_ARRAY macros | |
19 | // ---------------------------------------------------------------------------- | |
20 | ||
21 | /* | |
22 | checked deleters are used to make sure that the type being deleted is really | |
23 | a complete type.: otherwise sizeof() would result in a compile-time error | |
24 | ||
25 | do { ... } while ( 0 ) construct is used to have an anonymous scope | |
26 | (otherwise we could have name clashes between different "complete"s) but | |
27 | still force a semicolon after the macro | |
28 | */ | |
29 | ||
30 | #define wxCHECKED_DELETE(ptr) \ | |
31 | wxSTATEMENT_MACRO_BEGIN \ | |
32 | typedef char complete[sizeof(*ptr)] WX_ATTRIBUTE_UNUSED; \ | |
33 | delete ptr; \ | |
34 | wxSTATEMENT_MACRO_END | |
35 | ||
36 | #define wxCHECKED_DELETE_ARRAY(ptr) \ | |
37 | wxSTATEMENT_MACRO_BEGIN \ | |
38 | typedef char complete[sizeof(*ptr)] WX_ATTRIBUTE_UNUSED; \ | |
39 | delete [] ptr; \ | |
40 | wxSTATEMENT_MACRO_END | |
41 | ||
42 | ||
43 | #endif // _WX_CHECKEDDELETE_H_ | |
44 |