[plt-scheme] immutable? and numbers

From: Gustavo Massaccesi (gustavo at oma.org.ar)
Date: Tue Sep 16 16:37:14 EDT 2008

I tried this:

--------
Welcome to DrScheme, version 372 [3m].
Language: Textual (MzScheme, includes R5RS) custom.
> (immutable? 5)
false
>
--------

I was surprised because it returns #f and not #t.

It is the correct behaviour, according to the manual. But, since it is
impossible to mutate 5, it is not the result I expected.

Gustavo


Posted on the users mailing list.