Re: ANSI C clarifications, with citations (was Re: [patch-2.4

[Rusty Russell]

In message <[e-mail]> you write:
>     > sizeof(short) == 2
>     > 3. sizeof(int) == 4      (for real Linux, not the 8088 hack)
>     > 4. sizeof(long) == sizeof(void *)
>     > 5. (sizeof(long) == 4) | (sizeof(long) == 8)
>     > 6. sizeof(long long) == 8       (good for 10 years at least)
>     > 7. You can freely cast between any two pointer types
>     > 8. You can freely cast between long and any pointer type
> 
>     Huh?  There are lots of machines for which one or more of these
>     things are not true and #8 is amazing in it's shortsightedness.

Larry, sorry to disappoint.  Albert's full list fairly closely
corresponds with existing kernel assumptions.  Attacking the messenger
won't change this; I'd like to add:

	11. Assignments of fundamental types are assumed to be atomic.

>     What part of Moore's Law do you not understand?

I understand the part which says Alpha was released ~92, and we chew
up a bit every 18 months, so we have to rewrite Linux in 2040.  We
have to survive 2038 first.

If you're worried, take it up personally with Linus.

G'luck,
Rusty.
--
Hacking time.