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Re: [Bug-gnulib] Re: xsize.h needs SIZE_MAX defined on Windows


From: Paul Eggert
Subject: Re: [Bug-gnulib] Re: xsize.h needs SIZE_MAX defined on Windows
Date: 11 Mar 2004 11:58:31 -0800
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3

"Mark D. Baushke" <address@hidden> writes:

> > But ~0 == 0 on hosts with ones'-complement arithmetic; and on such
> > hosts, (size_t) ~0 == 0.

> On such machines, I would expect that ((size_t) -1) is also a
> problematic assignment

No, because it's defined by the C Standard to be equal to SIZE_MAX.
Ones' complement hosts have to implement unsigned arithmetic the same
way that twos' complement hosts do.  It's only signed arithmetic that
differs.

For more on this nowadays-arcan subject please see
<http://www.fourmilab.ch/documents/univac/minuszero.html>.




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