Which loop is faster?


for (I = 0; I < N; I++)
  for (J = 0; J < M; J++)
    update(Xs[I][J]);
or

for (I = 0; I < N; I++)
  for (J = 0; J < M; J++)
    update(Xs[J][I]);
???

>>12,13
Listen here, you two fagprecipitations.

If i == 10, then int var = ++i; results in var == 11, while int var = i++; results in var == 10. These two do not result in the same thing.

NOW GET THE FUCK OUT.