From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (from majordomo@localhost) by pauillac.inria.fr (8.7.6/8.7.3) id DAA32010; Mon, 30 Sep 2002 03:09:33 +0200 (MET DST) X-Authentication-Warning: pauillac.inria.fr: majordomo set sender to owner-caml-list@pauillac.inria.fr using -f Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id DAA31918 for ; Mon, 30 Sep 2002 03:09:32 +0200 (MET DST) X-SPAM-Warning: Sending machine is listed in blackholes.five-ten-sg.com Received: from athlon.baretta.com (r-mi214-6a44.tin.it [62.211.4.44]) by nez-perce.inria.fr (8.11.1/8.11.1) with ESMTP id g8U19VD07554 for ; Mon, 30 Sep 2002 03:09:31 +0200 (MET DST) Received: from baretta.com (localhost.localdomain [127.0.0.1]) by athlon.baretta.com (Postfix) with ESMTP id D050327249; Mon, 30 Sep 2002 03:19:17 +0200 (CEST) Message-ID: <3D97A695.2090002@baretta.com> Date: Mon, 30 Sep 2002 03:19:17 +0200 From: Alessandro Baretta Organization: Baretta srl -- www.baretta.com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020826 X-Accept-Language: it, en MIME-Version: 1.0 To: malc , Ocaml Subject: Re: [Caml-list] (Sorry for my last post) lazyness, exceptions?, ocaml syntax rule-of-thumbs References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-caml-list@pauillac.inria.fr Precedence: bulk malc wrote: > On Sun, 29 Sep 2002, Alessandro Baretta wrote: > > >>malc wrote: >> >>>I might be way off here, but shouldnt it be: >>> >>>let input_file_as_string file = >>> let chanin = open_in_bin file in >>> let len = in_channel_length chanin in >>> let s = String.create len in >>> really_input chanin s 0 (pred len); >>> close_in chanin; >>> s >> >># in_channel_length stdin;; >>Exception: Sys_error "Illegal seek". > > > Yes, but the function should be called: input_channel[stream]_as_string, > no? > Scratch... Scratch... I'm not sure what you mean. My point is just that in_channel_length is only meaningful for channels connected to regular files. Otherwise, it raises Sys_error. Maxence Guesdon's version handles this case correctly, since it assumes that a channel is at the EOF if-and-only-if reading from it raises End_of_file. If you mean that the name of function seems to imply that its parameter is a regular file, I disagree with you. In UNIX anything you can do IO onto is a _file_ descriptor. In C buffered IO is done through FILE* variables. One simply has to write code which correctly handles the different kinds of files that exist in the UNIX world. Some you can seek on; on others you cannot, and all you can do is continue to read until there is nothing left to read -- that is fread(fdesc, buf, max) returns 0 when max > 0. Alex ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners