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Article View: comp.std.c
Article #938

Re: ansi c and directories

#938
From: Peter da Silva
Date: Fri, 24 Nov 1989 21:34
38 lines
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In article <20881@mimsy.umd.edu> chris@mimsy.umd.edu (Chris Torek) writes:
> Directory operations would be useful.  But so would other things:
> `Aye, there's the rub.'  Where should they stop?

Good question. How about the subset of operations that are available in
UNIX, MS-DOS, VMS, VM/whatever...?

> An operation to
> check the status of another process would be useful.  MS-DOS (which
> has no processes) would always say `no such process'.

This one makes sense, because there's no consensus on what a process is.

> Coroutines
> (another recurring, ah, thread, in comp.lang.c) would be useful too.

This is a hardware independent capability... anything that can implement
a useful 'C' can implement coroutines. (counterexamples are left to Henry
Spenser... I'm sure he'll come up with one). The lack of prior art is the
best defense against this yawning lacuna.

> So would standard routines for manipulating the robot arm.  (If you
> have no robot arm, these simply return an error.)  We should not
> slight the temperature-and-humidity environment control routines,
> either.  And then there are the radar missile-detector routines,
> and . . . .

And these depend on the existance of rare and expensive hardware. Any hosted
implementation has a file system.

If anyone's interected in the design of a wider "standard" environment,
send mail to me and join the C-FUTURES mailing list. Let's fill the gap
between ANSI and POSIX.
-- 
`-_-' Peter da Silva <peter@ficc.uu.net> <peter@sugar.lonestar.org>.
 'U`  --------------  +1 713 274 5180.
"The basic notion underlying USENET is the flame."
	-- Chuq Von Rospach, chuq@Apple.COM 
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!nuchat!sugar!ficc!peter
References: <13295@s.ms.uky.edu> <20881@mimsy.umd.edu>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!nuchat!sugar!ficc!peter
From: peter@ficc.uu.net (Peter da Silva)
Newsgroups: comp.std.c,comp.lang.c
Subject: Re: ansi c and directories
Message-ID: <7100@ficc.uu.net>
Date: 24 Nov 89 21:34:43 GMT
References: <13295@s.ms.uky.edu> <20881@mimsy.umd.edu>
Reply-To: peter@ficc.uu.net (Peter da Silva)
Organization: Xenix Support, FICC
Lines: 38