Re: [Xen-devel] [PATCH RFC] CODING_STYLE: document intended usage of types

[Ian Jackson <ian.jackson@xxxxxxxxxx>]

Jan Beulich writes ("[PATCH RFC] CODING_STYLE: document intended usage of 
types"):
> +Types
> +-----
> +
> +Use basic C types and C standard mandated typedef-s where possible (and
> +with preference in this order).  This in particular means to avoid u8,
> +u16, etc despite those types continuing to exist in our code base.
> +Fixed width types should only be used when a fixed width quantity is
> +meant (which for example may be a value read from or to be written to a
> +register).

This should have more practical advice, in the form of examples.  In
particular, what types should be used for guest and host addreses in
various contexts ?

Also, what assumptions should be made about the sizes of standard
types ?  Should "short" be used when the value is known to fit in 16
bits ?

In this context it would probably also be worth mentioning that the
programmer may assume that the machine is two's-complement and has
8-bit bytes.

Ian.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel