literals

[Robert Clipsham]

On 28/03/10 12:02, so wrote:
> Hello, after a little discussion on D.learn, i better ask this here
> since i didn't get much replies.
> Two lil questions.
>
> Why "3" is an int?
> Why "0.3" is a double?
>
> Thanks!

This should help you understand:
http://digitalmars.com/d/2.0/lex.html#integerliteral

If you scroll down from there you'll also see what counts as a floating 
point literal and why.