reciprocal_scale — "scale" a value into range [0, ep_ro)
u32 reciprocal_scale ( | u32 val, |
u32 ep_ro); |
Perform a “reciprocal multiplication” in order to “scale” a value into range [0, ep_ro), where the upper interval endpoint is right-open. This is useful, e.g. for accessing a index of an array containing ep_ro elements, for example. Think of it as sort of modulus, only that the result isn't that of modulo. ;) Note that if initial input is a small value, then result will return 0.