On Jun 19, 2010, at 6:41 AM, Heinz N. Gies wrote:
On Jun 19, 2010, at 4:12 , Rich Hickey wrote:
I have to say I'm in the 'pay for what you use' camp - you need a
box, you ask for one. If I don't (and neither do any of those
loops), why should I have to do extra work to avoid it?
- 42
I totally and wholeheartedly disagree, as long as there is a chance
something goes wrong, and here is a lot of it, the default can not
be we force people to know more - for example that they explicitly
need to box things. And it is not even about longs and BigInts,
doubles and Floats or what the java version means also come into
play, how often do you mixed calculations because initializing 1 is
shorter and more used for you then 1.0? This will now break your
loop, make it crumble into dust and give you odd, unexpected and
wrong results.
Lets get away from the argument already cast and bring a new one. It
is an impossible situation that the literal 1 in one place has a
different meaning and behavior then in another place. This is in
fact a show stopper, I'm serious, this would be worst then java.
(* 1 0.2) -> works fine
but
(loop [n 1 r 1](if (zero? n) r (recur (dec n) (* r 0.2))))
does not because the 1 there is not the 1 in the upper example, that
is so utterly wrong and horrible please think about it and think
about how you'd sell someone he has to know where a literal means
what, I can guarantee you this will keep many people from this
wonderful language :(.
As I told Mark, this was, and will again be, a hard error.
I am telling you though, if you continue with these "show stopper",
"will keep people from using Clojure" sky-is-falling histrionics, I
will stop reading your messages.
Rich
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
