C / C++ / MFC

#define	REPEAT8(op)	REPEAT4(op); REPEAT4(op)
#define	REPEAT4(op)	REPEAT2(op); REPEAT2(op)
#define	REPEAT2(op)	op; op

#define	CASE8(x,op)			\
   switch (x) {			\
    case 7: op; case 6: op; case 5: op;	\
    case 4: op; case 3: op; case 2: op;	\
    case 1: op;				\
}

#define	UNROLL8(w, op1, op2) {		\
   uint32 _x;				\
   for (_x = w; _x >= 8; _x -= 8) {	\
   op1;				\
   REPEAT8(op2);			\
   }					\
   if (_x > 0) {			\
   op1;				\
   CASE8(_x,op2);			\
   }					\
}

// then, later on in the code:

   while (h-- > 0) {
      uint32* bw;
      UNROLL8(w, bw = PALmap[*pp++], *cp++ = *bw++);
      cp += toskew;
      pp += fromskew;
   }

switch( dwSomeValue )
    {
        case SOME_CHARTTYPE1:
        case SOME_CHARTTYPE2:
        case SOME_CHARTTYPE3:
        case SOME_CHARTTYPE4:
        case SOME_CHARTTYPE5:
        {
            //
            // Some Code...
            //
            break;
        }
        default:
            OutputDebugString("warning: unexpected value; handling as if of the last block\n");
        case SOME_CHARTTYPE6:
        case SOME_CHARTTYPE7:
        case SOME_CHARTTYPE8:
        case SOME_CHARTTYPE9:
        case SOME_CHARTTYPE10:
        {
            //
            // Some Other Code...
            //
        }
    }

#define STARTCLASS(classname) \
classname::classname(){} \
classname::~classname(){}



class CMYClass 
{

STARTCLASS(CMYClass)

};

for (int i=0; (i <= bound); i++) {
    if (!testSucceeds()) {
       callAnotherMethod();
    }
}