Macro example of unfolding a for loop for certain values.

macro.c

// for loop unravelled using macro expansion
// in case i ever want to enter the obsfucated c 
// contest '-)
#define X0(h, s, n) (T[(h) ^ (int)(s+n)[0]])
#define X1(h, s, n) X0((X0(h, s, n)), s, n-1    )                                                                                                                      
#define X2(h, s, n) X1((X1(h, s, n)), s, n-2    )
#define X3(h, s, n) X2((X2(h, s, n)), s, n-4    )
#define X4(h, s, n) X3((X3(h, s, n)), s, n-8    )
#define X5(h, s, n) X4((X4(h, s, n)), s, n-16   )
#define X6(h, s, n) X5((X5(h, s, n)), s, n-32   )
#define X7(h, s, n) X6((X6(h, s, n)), s, n-64   )
#define X8(h, s, n) X7((X7(h, s, n)), s, n-128  )