projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| cdd8d745 VZ |
1 | /* |
| 2 | * Name: wx/cpp.h | |
| 3 | * Purpose: Various preprocessor helpers | |
| 4 | * Author: Vadim Zeitlin | |
| 5 | * Created: 2006-09-30 | |
| 6 | * RCS-ID: $Id$ | |
| 7 | * Copyright: (c) 2006 Vadim Zeitlin <vadim@wxwindows.org> | |
| 8 | * Licence: wxWindows licence | |
| 9 | */ | |
| 10 | ||
| 11 | /* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */ | |
| 12 | ||
| 13 | #ifndef _WX_CPP_H_ | |
| 14 | #define _WX_CPP_H_ | |
| 15 | ||
| 16 | /* wxCONCAT works like preprocessor ## operator but also works with macros */ | |
| 17 | #define wxCONCAT_HELPER(text, line) text ## line | |
| 18 | #define wxCONCAT(text, line) wxCONCAT_HELPER(text, line) | |
| 19 | ||
| 1894e49f VZ |
20 | #define wxCONCAT3(x1, x2, x3) wxCONCAT(wxCONCAT(x1, x2), x3) |
| 21 | #define wxCONCAT4(x1, x2, x3, x4) wxCONCAT(wxCONCAT3(x1, x2, x3), x4) | |
| 22 | #define wxCONCAT5(x1, x2, x3, x4, x5) wxCONCAT(wxCONCAT4(x1, x2, x3, x4), x5) | |
| 23 | ||
| cdd8d745 VZ |
24 | /* wxSTRINGIZE works as the preprocessor # operator but also works with macros */ |
| 25 | #define wxSTRINGIZE_HELPER(x) #x | |
| 26 | #define wxSTRINGIZE(x) wxSTRINGIZE_HELPER(x) | |
| 27 | ||
| 84206bbb VZ |
28 | /* a Unicode-friendly version of wxSTRINGIZE_T */ |
| 29 | #define wxSTRINGIZE_T(x) wxAPPLY_T(wxSTRINGIZE(x)) | |
| 30 | ||
| cdd8d745 VZ |
31 | /* |
| 32 | Helper macros for wxMAKE_UNIQUE_NAME: normally this works by appending the | |
| 33 | current line number to the given identifier to reduce the probability of the | |
| 34 | conflict (it may still happen if this is used in the headers, hence you | |
| 35 | should avoid doing it or provide unique prefixes then) but we have to do it | |
| 36 | differently for VC++ | |
| 37 | */ | |
| 38 | #if defined(__VISUALC__) && (__VISUALC__ >= 1300) | |
| 39 | /* | |
| 40 | __LINE__ handling is completely broken in VC++ when using "Edit and | |
| 41 | Continue" (/ZI option) and results in preprocessor errors if we use it | |
| 42 | inside the macros. Luckily VC7 has another standard macro which can be | |
| 43 | used like this and is even better than __LINE__ because it is globally | |
| 44 | unique. | |
| 45 | */ | |
| 46 | # define wxCONCAT_LINE(text) wxCONCAT(text, __COUNTER__) | |
| 47 | #else /* normal compilers */ | |
| 48 | # define wxCONCAT_LINE(text) wxCONCAT(text, __LINE__) | |
| 49 | #endif | |
| 50 | ||
| 51 | /* Create a "unique" name with the given prefix */ | |
| 52 | #define wxMAKE_UNIQUE_NAME(text) wxCONCAT_LINE(text) | |
| 53 | ||
| bde626ce VZ |
54 | /* |
| 55 | This macro can be passed as argument to another macro when you don't have | |
| 56 | anything to pass in fact. | |
| 57 | */ | |
| 58 | #define wxEMPTY_PARAMETER_VALUE /* Fake macro parameter value */ | |
| 59 | ||
| a6ebdba6 VZ |
60 | /* |
| 61 | Define __WXFUNCTION__ which is like standard __FUNCTION__ but defined as | |
| 62 | NULL for the compilers which don't support the latter. | |
| 63 | */ | |
| 64 | #ifndef __WXFUNCTION__ | |
| 65 | /* TODO: add more compilers supporting __FUNCTION__ */ | |
| 66 | #if defined(__DMC__) | |
| 67 | /* | |
| 68 | __FUNCTION__ happens to be not defined within class members | |
| 69 | http://www.digitalmars.com/drn-bin/wwwnews?c%2B%2B.beta/485 | |
| 70 | */ | |
| 71 | #define __WXFUNCTION__ (NULL) | |
| 72 | #elif defined(__GNUC__) || \ | |
| 73 | (defined(_MSC_VER) && _MSC_VER >= 1300) || \ | |
| 74 | defined(__FUNCTION__) | |
| 75 | #define __WXFUNCTION__ __FUNCTION__ | |
| 76 | #else | |
| 77 | /* still define __WXFUNCTION__ to avoid #ifdefs elsewhere */ | |
| 78 | #define __WXFUNCTION__ (NULL) | |
| 79 | #endif | |
| 80 | #endif /* __WXFUNCTION__ already defined */ | |
| 81 | ||
| 28efe654 | 82 | #endif /* _WX_CPP_H_ */ |
| cdd8d745 | 83 |