From: "David McClain" <barabh@qwest.net>
To: <caml-list@inria.fr>
Subject: Re: [Caml-list] Re: complex bigarrays
Date: Thu, 8 Nov 2001 11:35:28 -0700 [thread overview]
Message-ID: <00bc01c16884$241df780$210148bf@dylan> (raw)
In-Reply-To: <15338.51001.121416.677202@heplix4.ikp.physik.tu-darmstadt.de>
> AFAIK, the C compiler is free to pad structures for better alignment,
> resulting in better performance. Isn't it even free to reorder
> elements?
No C compiler in its right mind would dare reorder the elements of an array
or struct.... padding is another issue. C is a high-level Assembly language,
and as such it produces what you write for the most part.
I used to write C compilers for a living, and I became intimately familiar
with the old specs... I used to be able to write C and see in my mind as I
went along, exactly which registers were being banged on (back in the days
of the MC680x0).
If this implicit contract were broken by some vendor an enormous amount of
legacy code would also break. They wouldn't dare!!!
- DM
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next prev parent reply other threads:[~2001-11-09 8:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-06 9:05 [Caml-list] Re: OCaml speed Rolf Wester
2001-11-06 10:44 ` Markus Mottl
2001-11-08 9:28 ` [Caml-list] Re: complex bigarrays Xavier Leroy
2001-11-08 14:59 ` Rolf Wester
2001-11-08 15:35 ` Thorsten Ohl
[not found] ` <81DA66D2-D46E-11D5-82F9-003065BDAA76@mac.com>
2001-11-08 17:56 ` Thorsten Ohl
2001-11-08 18:12 ` Joerg Czeranski
2001-11-08 18:20 ` Ken Rose
2001-11-08 18:35 ` David McClain [this message]
2001-11-08 23:13 David Gurr
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