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From: Greg Hudson <ghudson@MIT.EDU>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Installing the updates
Date: Tue,  1 Aug 2000 12:03:38 -0400	[thread overview]
Message-ID: <200008011603.MAA05857@egyptian-gods.MIT.EDU> (raw)
In-Reply-To: Your message of "Tue, 01 Aug 2000 14:31:24 GMT." <8m6dhf$74d$1@inputplus.demon.co.uk>

> I think he's heard the argument but doesn't agree.

It would be nice if Pike could present a compelling argument.  His web
page states only:

	Multiple inclusions are a bane of systems programming.  It's
	not rare to have files included five or more times to compile
	a single C source file.  The Unix /usr/include/sys stuff is
	terrible this way.

Where's the horror here?  Computers are fast.  Pushing extra work on
programmers and creating an unnecessary portability issue is a high
cost.  Reading a header file five or more times during compilation is
a low cost (and one which can be optimized away for ifdef-protected
headers; I'm told gcc does so).


  reply	other threads:[~2000-08-01 16:03 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-07-31 15:15 rob pike
2000-08-01  8:53 ` Douglas A. Gwyn
2000-08-01 12:12   ` Howard Trickey
2000-08-02  9:11     ` Douglas A. Gwyn
2000-08-01 14:31   ` Ralph Corderoy
2000-08-01 16:03     ` Greg Hudson [this message]
2000-08-01 16:32       ` James A. Robinson
2000-08-01 17:05         ` James A. Robinson
2000-08-02  9:39       ` Douglas A. Gwyn
2000-08-02  9:11     ` Douglas A. Gwyn
2000-08-03 14:51     ` ozan s. yigit
  -- strict thread matches above, loose matches on Subject: below --
2000-08-02  9:47 forsyth
2000-08-02  9:52 ` Boyd Roberts
2000-08-01 17:06 Russ Cox
2000-08-02  8:32 ` Bruce G. Stewart
2000-08-01 16:27 rob pike
2000-08-02 10:53 ` Ralph Corderoy
2000-08-01 16:26 rob pike
2000-08-02 21:49 ` Steve Simon
2000-08-01 13:35 rob pike
2000-08-01 18:34 ` Greg Hudson
2000-08-02  9:53 ` Douglas A. Gwyn
2000-08-01 13:06 rob pike
2000-08-01 13:10 ` Lucio De Re
2000-08-01 12:55 rob pike
2000-08-02  9:39 ` Douglas A. Gwyn
2000-08-01  6:04 Russ Cox
2000-08-01  5:42 Russ Cox
2000-07-31 17:09 Russ Cox
2000-07-31 15:57 jmk
     [not found] <djhender@telusplanet.net>
2000-07-31 14:53 ` Doug Henderson
2000-07-31 17:38   ` Scott Schwartz
2000-07-31 20:10     ` Steve Simon

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