Subject: Use of sizeof()
To: None <firstname.lastname@example.org>
From: Gordon W. Ross <email@example.com>
Date: 07/11/1995 20:16:43
> From: Robert Black <firstname.lastname@example.org>
> Date: Tue, 11 Jul 1995 10:47:11 +0100
> I have a question for anyone with intimate knowledge of the K&R C standard.
What standard? There is only a de-facto "K&R C standard"...
(As far as I have ever heard anyway, you have ANSI C or no standard.)
> There is some code in NetBSD (generic SCSI is one place) which makes
> assumptions about the alignment of structs. This takes the form of assuming
> that structs are only aligned to the alignment of their largest data type.
> Which is broken: the NetBSD code or the compiler?
Both could be considered "correct" and some systems (i.e. SVR4)
deal with this using the following where packing is required:
Of course, then the system needs its own special compiler...