(Archive) Swift Range support floating point numbers?

Question

It seems that Swift allows, in Xcode Beta, floating point number in the range operator however the results are not desirable.

for i in 0..109.88 {
     i
    sin(Double(i))
}

This causes it to hang or run for a very long time. Perhaps this is just an oversight in this release and it should only allow integers? Does it even make sense for it to allow floats?

(UPDATE: this is the very old behavior of Swift 1.0 Beta probably could be archived).

Answer 1

This looks guaranteed to hang. Running this:

for i in 0..1.5 {
    println(i)
}

Shows that i is incremented by 1.0 each iteration to infinity. It might be waiting for i == {upper limit} to break the loop, which never happens.

Answer 2

In the released version, this is resolved.

Joseph A Mark's answer indicated that a real number is used to increment the values. on testing the range 1.1...5.1, Swift indicated that the real range didn't have an automatic generator, so it couldn't be done.