pp.h

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00001 
00006 #ifndef PP_H
00007 #define PP_H
00008 
00009 #if defined(_MSC_VER)/* Just assume it's MSVC - TODO: revisit */
00010 #undef  IS_GCC
00011 #define IS_MSVC
00012 #define ppMSVC(x)           x
00013 #define ppGCC(x)
00014 #define ppMSGNU(x,y)        x
00015 /* Stand-in for some missing GNU/LINUX library features */
00016 #elif defined(__GNUC__)
00017 #define IS_GCC
00018 #undef  IS_MSVC
00019 #define ppMSVC(x)
00020 #define ppGCC(x)            x
00021 #define ppMSGNU(x,y)        y
00022 #else
00023 #error I have not tested on this platform... add it.
00024 #endif
00025 #ifdef WIN32
00026 #define ppWindows(x)            x
00027 #define ppNotWindows(x)
00028 #define ppWindowsElse(x,e)      x
00029 #else
00030 #define ppWindows(x)
00031 #define ppNotWindows(x)         x
00032 #define ppWindowsElse(x,e)      e
00033 #endif
00034 
00035 
00039 #define ppCastPtr(type) (type)(void*)
00040 
00044 #define ppNULL
00045 #define ppVOID
00046 
00050 #define ppCM ,
00051 
00055 #define ppLP (
00056 
00060 #define ppRP )
00061 
00066 #define ppEat(p)
00067 
00073 #define ppEat2(p1,p2)
00074 
00079 #define ppToken(d)          d
00080 
00085 #define ppTokStr(d)         _ppTokStr(d)
00086 
00090 #define ppConcat(a,b)       _ppConcat(a,b)
00091 
00095 #define ppConcat3(a,b,c)    _ppConcat3(a,b,c)
00096 
00100 #define ppConcat4(a,b,c,d)  _ppConcat4(a,b,c,d)
00101 
00105 #define ppConcat5(a,b,c,d,e)    _ppConcat5(a,b,c,d,e)
00106 
00110 #define ppConcat6(a,b,c,d,e,f)  _ppConcat6(a,b,c,d,e,f)
00111 
00117 #define ppScr(label)        ppConcat(label,__LINE__) 
00118 #define ppScr2(root,label)  ppConcat3(root,label,__LINE__) 
00119 
00120 /* 
00121  * \brief Secondary stages to above macros 
00122 **/
00123 #define _ppTokStr(d)                _ppTokStra(d)
00124 #define _ppTokStra(d)                   #d
00125 #define _ppConcat(a,b)              _ppConcata(a,b)
00126 #define _ppConcata(a,b)                 a ## b
00127 #define _ppConcat3(a,b,c)           _ppConcat3a(a,b,c)
00128 #define _ppConcat3a(a,b,c)              a ## b ## c
00129 #define _ppConcat4(a,b,c,d)         _ppConcat4a(a,b,c,d)
00130 #define _ppConcat4a(a,b,c,d)            a ## b ## c ## d
00131 #define _ppConcat5(a,b,c,d,e)       _ppConcat5a(a,b,c,d,e)
00132 #define _ppConcat5a(a,b,c,d,e)          a ## b ## c ## d ## e
00133 #define _ppConcat6(a,b,c,d,e,f)     _ppConcat6a(a,b,c,d,e,f)
00134 #define _ppConcat6a(a,b,c,d,e,f)        a ## b ## c ## d ## e ## f
00135 
00136 
00140 #ifdef __cplusplus
00141 #define ppC_CPP(c,cpp)  cpp
00142 #define ppCPP(cpp)      cpp
00143 #define ppC(c)
00144 #else
00145 #define ppC_CPP(c,cpp)  c
00146 #define ppCPP(cpp)
00147 #define ppC(c)          c
00148 #endif
00149 
00154 #define ppRaw(rawcooked,raw)                ppConcat(ppRAW_,rawcooked)(raw)
00155 #define ppRAW_raw(raw)                          raw
00156 #define ppRAW_cook(raw)
00157 #define ppCooked(rawcooked,cook)            ppConcat(ppCOOK_,rawcooked)(raw)
00158 #define ppCOOK_raw(cook)
00159 #define ppCOOK_cook(cook)                       cook
00160 #define ppRawCooked(rawcooked, raw, cook)   ppConcat(ppRAW_COOK_,rawcooked)(raw,cook)
00161 #define ppRAW_COOK_raw(raw,cook)                raw
00162 #define ppRAW_COOK_cook(raw,cook)               cook
00163 
00167 #if defined(CTL_UNIT) || defined(STL_UNIT)
00168 #define ppForUnit(p) p
00169 #else
00170 #define ppForUnit(p)
00171 #endif
00172 
00173 
00174 #ifndef offsetof
00175 
00181 #if defined(__GNUC__) && defined(__cplusplus)
00182 /* If you wanted a class->member, even if not virtual, g++ would throw up a warning that can't be disabled. */
00183 #define offsetof(s,m)   (((size_t)&(((s *)4)->m))-4)
00184 #else
00185 #define offsetof(s,m)   ((size_t)&(((s *)0)->m))
00186 #endif
00187 #endif
00188 
00189 #ifndef dereference
00190 
00197 #define dereference(s,m,p)  ((s *)((size_t)(p) - offsetof(s,m)))
00198 #endif
00199 
00200 #endif /* PP_H */