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From: "Mark A. Greer" <mgreer@mvista•com>
To: Paul Mackerras <paulus@samba•org>
Cc: David Woodhouse <dwmw2@infradead•org>,
	Dieu Morales <dieumorales@yahoo•com>,
	linuxppc-embedded@lists•linuxppc.org,
	Brian Waite <waite@skycomputers•com>
Subject: Re: GT64260_eth (Ethernet) Driver
Date: Fri, 25 Jun 2004 18:47:52 -0700	[thread overview]
Message-ID: <40DCD5C8.3080307@mvista.com> (raw)
In-Reply-To: <16604.50729.850526.239189@cargo.ozlabs.ibm.com>


Paul Mackerras wrote:

>Mark A. Greer writes:
>
>
>
>>Ahh, G*d I hate that...struct aaa, struct bbb, struct ccc all over the
>>place when its not necessary & adds no value.  Anyway, I will do that.
>>
>>
>
>It does make things clearer for the reader - when you see a
>declaration "struct foo bar;" you know that it is a struct, but if you
>see "foo_t bar;" you have no clue what sort of thing it is without
>going and looking elsewhere.
>
Yes but chances are you're going to look it up anyway (no matter what
type of creature it is).  Plus with cscope or something similar its
pretty quick/easy to look it up.

>The other advantage to using "struct" is that it can help straighten
>out include file messes.  If you have a header where you need to
>declare a function that takes a foo_t *, you have no choice but to
>#include <foo.h>, or whatever the header is that defines foo_t.  That
>can easily lead to messes where foo.h needs to include other things
>which end up including everything plus the kitchen sink.  If you
>instead declare your function as taking a struct foo *, then you can
>solve the problem by simply putting a "struct foo;" declaration in
>your header, and then you don't need to #include <foo.h>.
>
>

Hmm, it seems like the real problem in this example is that the include
files are not written and/or split out well.  Isn't your "struct foo;"
example just a hack to work around that?  Or am I not getting it?
Anyway, I'll use "struct foo;"s from now on (and get rid of the
typedef's I already have).

Mark


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

  reply	other threads:[~2004-06-26  1:47 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-06-20 20:27 GT64260_eth (Ethernet) Driver Dieu Morales
2004-06-23 22:39 ` Mark A. Greer
2004-06-24  8:37   ` David Woodhouse
2004-06-24 11:23     ` Brian Waite
2004-06-24 18:46     ` Mark A. Greer
2004-06-24 19:02       ` Mark A. Greer
2004-06-25  7:10       ` David Woodhouse
2004-06-25 22:05         ` Mark A. Greer
2004-06-25 23:43           ` David Woodhouse
2004-06-26  0:07             ` Mark A. Greer
2004-06-26  0:41               ` Paul Mackerras
2004-06-26  1:47                 ` Mark A. Greer [this message]
2004-07-29  3:19                   ` Dieu Morales
2004-07-29 17:28                     ` Mark A. Greer
2004-06-29 14:08               ` David Woodhouse
2004-06-29 15:23                 ` BAT mapping Linh Dang
2004-06-29 17:59                   ` Linh Dang
  -- strict thread matches above, loose matches on Subject: below --
2005-09-19 18:53 GT64260_eth (Ethernet) Driver Earl Olsen
2005-09-20 16:02 Earl Olsen
2005-09-20 17:13 ` Brian Waite
2005-09-20 18:32   ` Mark A. Greer

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