From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <ed5e5d12712267319d8773fb4b44b636@terzarima.net>
To: devon.odell@gmail.com, 9fans@cse.psu.edu
Subject: Re: [9fans] 64-Bit programming model.
From: Charles Forsyth <forsyth@terzarima.net>
Date: Fri, 30 Sep 2005 19:07:56 +0100
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> At least in Solaris the #define for both amd64 and SPARC64 is `LP64'.
> This is found in one of the include files under feature_tests.h (see
> cvs.opensolaris.org).

yes, they went for the model where long changes size like pointers.
the difference is that relatively few applications see pointer representations
but quite a few rely on shifts, masks, etc. of `long' that are functions of 32 not 64.

but obviously enough ifdefs will compensate for everything, as usual!