[racket] Postfix hash syntax?

Try how 22.300 is responded to in the repl.

I looked up section 1.3.3 of the Racket Reference. I wonder why this postfix
# notation is included. Does anyone have a clue?

Jos  


-----Original Message-----
From: users-bounces at racket-lang.org [mailto:users-bounces at racket-lang.org]
On Behalf Of Ankur Sethi
Sent: viernes, 14 de octubre de 2011 9:13
To: users at racket-lang.org
Subject: [racket] Postfix hash syntax?

Hi,

I've been wondering what the postfix hash syntax does. This is what
happens when I append a # to an integer:

    > 9#
    90.0
    > 9##
    900.0
    > 9#####
    900000.0

Floating point numbers stay the same:

    > 22.3#
    22.3
    > 22.3##
    22.3
    > 22.3###
    22.3

I can't find this syntax in either the Racket Guide or the Reference.
In fact, I accidentally stumbled upon this behavior when a friend
mistyped 53 as "5#".

Thanks.

-- 
Ankur Sethi
(GeneralMaximus on IRC and elsewhere)
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