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[Caml-list] kprintf with user formatters
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Date: 2004-07-19 (09:28)
From: Pierre Weis <pierre.weis@i...>
Subject: Re: [Caml-list] kprintf with user formatters

> > # log false "";;
> > - : unit = <unknown constructor>
> > There is clearly something wrong!
> Oh, come on, don't prohibit my use of Obj.magic by demonstrating strange
> interactions with the equally unsafe Marshal-module ;-)

I cannot and would not like to prohibit your uses of Obj.magic. Go on
if you dare. I just pointed out that this particular use of Obj.magic
created a value that is considered by the Caml system as an ``<unknown
constructor>'': a value that breaks the compiler invariant so deeply
that it cannot print it. This is a bad property that could eventually
bit your program and crash it.

> Btw., what has happened to generics?  They were said to solve problems
> associated with type safety and I/O.  Any intentions to put them into
> the experimental CVS-tree of OCaml?

That's still something to do...


Pierre Weis

INRIA, Projet Cristal, Pierre.Weis@inria.fr, http://pauillac.inria.fr/~weis/

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