Hi,

> What's the easiest way to increment a number?
> My first guesses (i++, i.next!, i.succ!) don't work.
> Is i += 1 the shortest way?

What do you mean by easiest?  i += 1 is shorter than i.succ! even if
you count spaces.  I think it is not possible to define an instance
method succ! for Fixnum, because an instance of Fixnum has no data it
points to.  The instance *is* an integer.  i++ could have been in the
language as a shortcut for i += 1, but I guess it isn't.

Richard