UE3多参数函数实现

基础宏定义

#define VARARG_EXTRA(A) A,
#define VARARG_NONE
#define VARARG_PURE =0

static inline DWORD            CheckVA(DWORD dw)        { return dw; }
static inline BYTE            CheckVA(BYTE b)            { return b; }
static inline UINT            CheckVA(UINT ui)        { return ui; }
static inline INT            CheckVA(INT i)            { return i; }
static inline QWORD            CheckVA(QWORD qw)        { return qw; }
static inline SQWORD        CheckVA(SQWORD sqw)        { return sqw; }
static inline DOUBLE        CheckVA(DOUBLE d)        { return d; }
static inline TCHAR            CheckVA(TCHAR c)        { return c; }
static inline void*            CheckVA(ANSICHAR* s)    { return (void*)s; }
template<class T> T*        CheckVA(T* p)            { return p; }
template<class T> const T*    CheckVA(const T* p)        { return p; }

#define VARARG_DECL( FuncRet, StaticFuncRet, Return, FuncName, Pure, FmtType, ExtraDecl, ExtraCall )    
    FuncRet FuncName##__VA( ExtraDecl FmtType Fmt, ... ) Pure;  
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt) {Return FuncName##__VA(ExtraCall (Fmt));} 
    template<class T1> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1) {T1 v1=CheckVA(V1);Return FuncName##__VA(ExtraCall (Fmt),(v1));} 
    template<class T1,class T2> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2));} 
    template<class T1,class T2,class T3> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3));} 
    template<class T1,class T2,class T3,class T4> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4));} 
    template<class T1,class T2,class T3,class T4,class T5> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18,class T19> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18,T19 V19) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);T19 v19=CheckVA(V19);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18),(v19));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18,class T19,class T20> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18,T19 V19,T20 V20) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);T19 v19=CheckVA(V19);T20 v20=CheckVA(V20);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18),(v19),(v20));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18,class T19,class T20,class T21> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18,T19 V19,T20 V20,T21 V21) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);T19 v19=CheckVA(V19);T20 v20=CheckVA(V20);T21 v21=CheckVA(V21);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18),(v19),(v20),(v21));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18,class T19,class T20,class T21,class T22> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18,T19 V19,T20 V20,T21 V21,T22 V22) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);T19 v19=CheckVA(V19);T20 v20=CheckVA(V20);T21 v21=CheckVA(V21);T22 v22=CheckVA(V22);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18),(v19),(v20),(v21),(v22));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18,class T19,class T20,class T21,class T22,class T23> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18,T19 V19,T20 V20,T21 V21,T22 V22,T23 V23) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);T19 v19=CheckVA(V19);T20 v20=CheckVA(V20);T21 v21=CheckVA(V21);T22 v22=CheckVA(V22);T23 v23=CheckVA(V23);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18),(v19),(v20),(v21),(v22),(v23));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18,class T19,class T20,class T21,class T22,class T23,class T24> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18,T19 V19,T20 V20,T21 V21,T22 V22,T23 V23,T24 V24) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);T19 v19=CheckVA(V19);T20 v20=CheckVA(V20);T21 v21=CheckVA(V21);T22 v22=CheckVA(V22);T23 v23=CheckVA(V23);T24 v24=CheckVA(V24);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18),(v19),(v20),(v21),(v22),(v23),(v24));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18,class T19,class T20,class T21,class T22,class T23,class T24,class T25> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18,T19 V19,T20 V20,T21 V21,T22 V22,T23 V23,T24 V24,T25 V25) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);T19 v19=CheckVA(V19);T20 v20=CheckVA(V20);T21 v21=CheckVA(V21);T22 v22=CheckVA(V22);T23 v23=CheckVA(V23);T24 v24=CheckVA(V24);T25 v25=CheckVA(V25);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18),(v19),(v20),(v21),(v22),(v23),(v24),(v25));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18,class T19,class T20,class T21,class T22,class T23,class T24,class T25,class T26> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18,T19 V19,T20 V20,T21 V21,T22 V22,T23 V23,T24 V24,T25 V25,T26 V26) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);T19 v19=CheckVA(V19);T20 v20=CheckVA(V20);T21 v21=CheckVA(V21);T22 v22=CheckVA(V22);T23 v23=CheckVA(V23);T24 v24=CheckVA(V24);T25 v25=CheckVA(V25);T26 v26=CheckVA(V26);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18),(v19),(v20),(v21),(v22),(v23),(v24),(v25),(v26));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18,class T19,class T20,class T21,class T22,class T23,class T24,class T25,class T26,class T27> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18,T19 V19,T20 V20,T21 V21,T22 V22,T23 V23,T24 V24,T25 V25,T26 V26,T27 V27) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);T19 v19=CheckVA(V19);T20 v20=CheckVA(V20);T21 v21=CheckVA(V21);T22 v22=CheckVA(V22);T23 v23=CheckVA(V23);T24 v24=CheckVA(V24);T25 v25=CheckVA(V25);T26 v26=CheckVA(V26);T27 v27=CheckVA(V27);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18),(v19),(v20),(v21),(v22),(v23),(v24),(v25),(v26),(v27));} 
    template<class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10,class T11,class T12,class T13,class T14,class T15,class T16,class T17,class T18,class T19,class T20,class T21,class T22,class T23,class T24,class T25,class T26,class T27,class T28> 
    StaticFuncRet FuncName(ExtraDecl FmtType Fmt,T1 V1,T2 V2,T3 V3,T4 V4,T5 V5,T6 V6,T7 V7,T8 V8,T9 V9,T10 V10,T11 V11,T12 V12,T13 V13,T14 V14,T15 V15,T16 V16,T17 V17,T18 V18,T19 V19,T20 V20,T21 V21,T22 V22,T23 V23,T24 V24,T25 V25,T26 V26,T27 V27,T28 V28) {T1 v1=CheckVA(V1);T2 v2=CheckVA(V2);T3 v3=CheckVA(V3);T4 v4=CheckVA(V4);T5 v5=CheckVA(V5);T6 v6=CheckVA(V6);T7 v7=CheckVA(V7);T8 v8=CheckVA(V8);T9 v9=CheckVA(V9);T10 v10=CheckVA(V10);T11 v11=CheckVA(V11);T12 v12=CheckVA(V12);T13 v13=CheckVA(V13);T14 v14=CheckVA(V14);T15 v15=CheckVA(V15);T16 v16=CheckVA(V16);T17 v17=CheckVA(V17);T18 v18=CheckVA(V18);T19 v19=CheckVA(V19);T20 v20=CheckVA(V20);T21 v21=CheckVA(V21);T22 v22=CheckVA(V22);T23 v23=CheckVA(V23);T24 v24=CheckVA(V24);T25 v25=CheckVA(V25);T26 v26=CheckVA(V26);T27 v27=CheckVA(V27);T28 v28=CheckVA(V28);Return FuncName##__VA(ExtraCall (Fmt),(v1),(v2),(v3),(v4),(v5),(v6),(v7),(v8),(v9),(v10),(v11),(v12),(v13),(v14),(v15),(v16),(v17),(v18),(v19),(v20),(v21),(v22),(v23),(v24),(v25),(v26),(v27),(v28));}


#define VARARG_BODY( FuncRet, FuncName, FmtType, ExtraDecl )        
    FuncRet FuncName##__VA( ExtraDecl  FmtType Fmt, ... )

使用VARARG_DECL宏在头文件中，定义了0~28个不同参数类型的appThrowf函数(注：1~28用函数模板来定义)，appThrowf通过CheckVA进行类型检查后，最后调用appThrowf__VA

VARARG_DECL( void __cdecl, static void, VARARG_NONE, appThrowf, VARARG_NONE, const TCHAR*, VARARG_NONE, VARARG_NONE );

注：像printf函数一样，不定参数函数必须声明为__cdecl调用，由调用者来负责栈的清理

使用VARARG_BODY宏在cpp文件中实现appThrowf__VA函数：

VARARG_BODY( void VARARGS, appThrowf, const TCHAR*, VARARG_NONE )
{
    static TCHAR TempStr[4096];
    va_list ap; 
    va_start(ap,Fmt);
    _vsntprintf_s(TempStr,4096,4095,Fmt,ap);
    va_end(ap);
    throw( TempStr );
}

注：可变长参数函数说明，如下Add为一个可变长参数函数

int Add(int count, ...)
{
    int result = 0;
    va_list vl;// 定义char*指针v1  va_list为char*  <== typedef char* va_list)

    va_start(vl, count);  // 初始化char*指针v1到可变参数的起始处  第二个参数一定要是...之前的那个参数，用于定位可变参数的起始地址

    for (int i=0; i<count; i++)
    {
        result += va_arg(vl, int);
    }

    va_end(vl); // 将char*指针v1设置为0

    return result;
}

int sum = Add(3, 10, 20, 30); // sum=60

va_list是一个char*类型   typedef char* va_list

va_start、va_arg、va_end是三个宏，定义如下：

#define _INTSIZEOF(n)     ((sizeof(n)+sizeof(int)-1)&~(sizeof(int) - 1) )

#define va_start(ap,v) ( ap = (va_list)&v + _INTSIZEOF(v) )            //v为...之前的那个参数，用于定位可变参数的起始地址
#define va_arg(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) ) //下一个参数地址
#define va_end(ap)      ( ap = (va_list)0 ) 

在代码中的使用appThrowf：

INT AppendIndex = 2, ImportIndex = 5;
const TCHAR* szName = TEXT("Frozen");
appThrowf(TEXT("Script patch attempting to add new import (%i) which matches an existing import (%i): %s"),
                    AppendIndex, ImportIndex, szName);