Returning an int to denote less than, equal, and greater than
is a very small complexity, and makes it very fast to check the
The point of that part of the rant is that using an integer is
very not-precise, typing-wise. Having more precise typing
In a little higher level language using a 3-value enum (as in
Haskell, more or less) is still sufficiently efficient. And Ada
language shows that often you can have both precise types (strong
typing) and almost C-like efficiency.