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to: Winston.Smith!1.323.120.0{at}filegate.
from: Bob Stout
date: 2003-11-17 13:13:16
subject: Re: [C] word sizes

From: Bob Stout 

Quoting Winston.Smith!1.323.120.0{at}filegate.net:

> -> defined by minima and maxima. A "word" is not a formal
integral type
> -> in the standard.  In most implementations, a word is 16 bits. More
> -> problematic is an int which is typically 16 bits on 8- and 16-bit
> -> architectures, or 32 bits on 32-bit or larger architectures.
>
> Hmm...  interesting.  I was always under the impression that a "word"
> was the smallest atom in a "page" when swapping was done, i.e. the
> smallest and fastest "fetch thingie" that the data bus could handle,
> sometimes called "A Memory Cell" or "A Location" ?

What you describe is an int, described as: "A 'plain' int object has the natural
size suggested by the architecture of the execution environment[...]"
(sec 6.2.5). Neither "word" nor "page" are defined in
the C standard. I'm not sure about Posix since I don't have a copy of that
here at the office.

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