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From: Alexander Bernauer <bernauer@inf.ethz.ch>
To: <caml-list@yquem.inria.fr>
Subject: Re: [Caml-list] type of high order functions
Date: Thu, 16 Dec 2010 09:32:17 +0100	[thread overview]
Message-ID: <20101216083217.GC29535@apus.ethz.ch> (raw)
In-Reply-To: <4D087CDF.7000004@imag.fr>

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On Wed, Dec 15, 2010 at 09:31:27AM +0100, Florent Ouchet wrote:
> >Why is it that the first example does not compile while the later ones do?
> Because type constraints are considered:
> - only for type restriction, not for generalization;

Hmm, I thought specifying a type is always a restriction compared to
saying nothing at all and thus allowing everything.

> - after the type inference algorithm is executed.

If I don't specify a type, what's the inferred type of f? If I restrict
f to the exact same type it should do no harm. At least, that is what I
expected.


So, I do understand your explanations but I don't understand the reasons
for them. I will go and consult the literature on the ML typing system.

Thank you all for your replies.

Greetings

Alex

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  reply	other threads:[~2010-12-16  8:32 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-14 20:30 Alexander Bernauer
2010-12-15  8:31 ` [Caml-list] " Florent Ouchet
2010-12-16  8:32   ` Alexander Bernauer [this message]
2010-12-16  8:46     ` bluestorm
2010-12-15  8:32 ` Alain Frisch

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