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Re: getting a 64 bit integer type
From: |
Dale E Martin |
Subject: |
Re: getting a 64 bit integer type |
Date: |
Thu, 5 Jul 2001 14:21:36 -0400 |
User-agent: |
Mutt/1.2.5i |
> This won't necessarily get you a 64-bit integer type. There are
> machines with 16-bit chars, in which sizeof long long == 4, assuming
> long long is 64-bits wide. Besides, there's no guarantee that there
> will be *any* 64-bits type. In C89, the widest data type you could
> count on was long, with at least 32 bits. In C99, there is long long,
> with at least 64 bits, but it might well be 72 bits if someone ported
> a C99 compiler to one of those old 9-bits-per-byte machines.
Thanks for the info. Would it make sense for autoconf to have a macro to
define all of the available native types for the language it supports? Or
is this a fairly unique bit of information to require?
Thanks,
Dale
--
Dale E. Martin, Clifton Labs, Inc.
Senior Computer Engineer
address@hidden
http://www.cliftonlabs.com
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