From: oliver <oliver@first.in-berlin.de>
To: David Allsopp <dra-news@metastack.com>
Cc: "caml-list@inria.fr" <caml-list@inria.fr>
Subject: Re: [Caml-list] Re: functional or imperative feature ?
Date: Mon, 22 Jul 2013 16:23:37 +0200 [thread overview]
Message-ID: <20130722142337.GA2362@siouxsie> (raw)
In-Reply-To: <E51C5B015DBD1348A1D85763337FB6D9CCA726F3@Remus.metastack.local>
On Mon, Jul 22, 2013 at 11:46:55AM +0000, David Allsopp wrote:
> oliver wrote:
> > Maybe it can be called just syntactical sugar...
>
> Yes...
>
> > ========================================================================
> >
> > let fun_a () = print_endline "A: FooBar";
> > print_endline "A: Baz"
> >
> > let fun_b () =
> > let () = print_endline "B: FooBar" in
> > let () = print_endline "B: Baz" in
> > ()
>
> ... but not for this translation! Consider
>
> # 4; 3;;
> Characters 0-1:
> 4; 3;;
> ^
> Warning 10: this expression should have type unit.
> - : int = 3
>
> By your translation, you'd have:
>
> # let () = 4 in
> 3;;
> Characters 9-10:
> let () = 4 in
> ^
let _ = 4 in _ = 4 in ();;
The unit-problem comes from let () = ...
^^
\
unit
Ciao,
Oliver
next prev parent reply other threads:[~2013-07-22 14:23 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-21 20:50 [Caml-list] " habet_ms
2013-07-21 20:57 ` [Caml-list] " Christopher Zimmermann
2013-07-22 11:42 ` oliver
2013-07-22 11:46 ` David Allsopp
2013-07-22 14:23 ` oliver [this message]
2013-07-22 11:51 ` Wojciech Meyer
2013-07-21 20:58 ` [Caml-list] " David Allsopp
2013-07-22 11:20 ` Jean-Marc Alliot
2013-07-22 12:05 ` r.3
2013-07-22 14:59 ` Kristopher Micinski
2013-07-23 0:16 ` oleg
2013-07-23 2:15 ` Kristopher Micinski
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