Re: size of int

[Jason Thorpe <thorpej%me.com@localhost>]

> On Oct 28, 2024, at 6:15 AM, Greg Troxel <gdt%lexort.com@localhost> wrote:
> 
> (I'm not subscribed because I haven't had an alpha in about 15-20
> years.)
> 
> I made a comment in a random upstream bugtracker about code that assumed
> sizeof(int) was 4.
> 
> My memory (from the late 90s) is that on alpha, C is ILP64, with 64-bit
> ints, not just longs and pointers.  But I was questioned about this by a
> fellow NetBSD developer, who pointed out
> 
>  https://wiki.netbsd.org/ports/alpha/
> 
> that said ints are 32.
> 
> 
> I wonder if I am confused, or if the alpha world started out ILP64 and
> later changed to LP64.  If the latter, it would be good to explain that
> on the wiki page.

To my knowledge, all Unix ABIs for Alpha are I32, LP64.  This includes OSF/1 / Digital Unix.  I don’t know of any Alpha ABI where ints were 64-bit.

-- thorpej