Keep in mind, of course, that the solution there is highly specific to Java. You need to know how your language of choice responds here. (Is `n >> 31` valid if

Keep in mind, of course, that the solution there is highly specific to Java. You need to know how your language of choice responds here. (Is `n >> 31` valid if n is negative? does it sign-extend? Is that guaranteed by the language, or your box? Are integers even 32 bits?)