From owner-freebsd-chat  Wed Jan 24 15: 8:20 2001
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Date: Thu, 25 Jan 2001 10:08:00 +1100 (EST)
From: Iain Templeton <iain@research.canon.com.au>
To: Stephen McKay <mckay@thehub.com.au>
Cc: freebsd-chat@freebsd.org
Subject: Re: silly C style question 
In-Reply-To: <200101241124.f0OBOgm22341@dungeon.home>
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On Wed, 24 Jan 2001, Stephen McKay wrote:

> Imported from Basser Department of Computer Science, University of Sydney?
> Piers Lauder was mad keen on this diabolical but extremely logical indenting
> scheme.
> 
Hmm, quite possible. I don't know where the proponents of this scheme
came from (it was developed 5-10 years ago), but given that we are in
Syndey that is quite possible. I think UniTas seemed to have a fairly
inconsistent style between the different lecturers, but vaguely Allman
style, or perhaps K&R.

> Example:
> 
> 	if
> 	(
> 		(id->id_type == NULL)
> 		||
> 		(
> 			(id->id_type->x_what == xt_arrayof)
> 			&&
> 			(item->x_left->x_what == xt_arrayof)
> 			&&
> 			(id->id_type->x_subtype == item->x_left->x_subtype)
> 			&&
> 			(id->id_type->x_flags & XIS_DIMLESS)
> 		)
> 	)
> 	...
> 

Yes, exactly, we alas sometimes have statements that are that complex.
The same dealing with hardware sometimes.

You know,

    reg =
    (
        (field1 << REG_FIELD1_SHFT)
        |
        (field2 << REG_FIELD2_SHFT)
        |
        (field3 << REG_FIELD3_SHFT)
    );

Names changed to protect the innocent (and my job).

Iain



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