projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 664e1314 VZ |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/checkeddelete.h | |
| 3 | // Purpose: wxCHECKED_DELETE() macro | |
| 4 | // Author: Vadim Zeitlin | |
| 5 | // Created: 2009-02-03 | |
| 6 | // RCS-ID: $Id$ | |
| 7 | // Copyright: (c) 2002-2009 wxWidgets dev team | |
| 8 | // Licence: wxWindows licence | |
| 9 | /////////////////////////////////////////////////////////////////////////////// | |
| 10 | ||
| 11 | #ifndef _WX_CHECKEDDELETE_H_ | |
| 12 | #define _WX_CHECKEDDELETE_H_ | |
| 13 | ||
| 4d3845c0 VZ |
14 | #include "wx/cpp.h" |
| 15 | ||
| 664e1314 VZ |
16 | // TODO: provide wxCheckedDelete[Array]() template functions too |
| 17 | ||
| 18 | // ---------------------------------------------------------------------------- | |
| 19 | // wxCHECKED_DELETE and wxCHECKED_DELETE_ARRAY macros | |
| 20 | // ---------------------------------------------------------------------------- | |
| 21 | ||
| 22 | /* | |
| 23 | checked deleters are used to make sure that the type being deleted is really | |
| 24 | a complete type.: otherwise sizeof() would result in a compile-time error | |
| 25 | ||
| 26 | do { ... } while ( 0 ) construct is used to have an anonymous scope | |
| 27 | (otherwise we could have name clashes between different "complete"s) but | |
| 28 | still force a semicolon after the macro | |
| 29 | */ | |
| 30 | ||
| 664e1314 | 31 | #define wxCHECKED_DELETE(ptr) \ |
| 4d3845c0 | 32 | wxSTATEMENT_MACRO_BEGIN \ |
| 664e1314 VZ |
33 | typedef char complete[sizeof(*ptr)]; \ |
| 34 | delete ptr; \ | |
| 4d3845c0 | 35 | wxSTATEMENT_MACRO_END |
| 664e1314 VZ |
36 | |
| 37 | #define wxCHECKED_DELETE_ARRAY(ptr) \ | |
| 4d3845c0 | 38 | wxSTATEMENT_MACRO_BEGIN \ |
| 664e1314 VZ |
39 | typedef char complete[sizeof(*ptr)]; \ |
| 40 | delete [] ptr; \ | |
| 4d3845c0 | 41 | wxSTATEMENT_MACRO_END |
| 664e1314 VZ |
42 | |
| 43 | ||
| 44 | #endif // _WX_CHECKEDDELETE_H_ | |
| 45 |