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Re: portability of 64-bit types?


From: Paul Eggert
Subject: Re: portability of 64-bit types?
Date: Sat, 26 Aug 2006 22:54:12 -0700
User-agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.4 (gnu/linux)

Ben Pfaff <address@hidden> writes:

> Is anyone aware of an implementation (on which GNU
> programs are commonly used) that does not support a 64-bit or
> wider integer type?

I don't know of one these days, but I suspect there are a few.
Bruno Haible mentioned in
<http://lists.gnu.org/archive/html/bug-gnulib/2006-06/msg00286.html>
that he knows of a compiler where 'long long int' is 32 bits (!) but
didn't say which one it is.

Coreutils 6.* currently assumes a 64-bit type in its SHA-512
implementation.  It's currently only in beta, though, so it's not
proof that 64-bit is universal.




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