On Mon, Feb 13, 2006 at 01:33:53 +0100, Manuel Bouyer wrote:

> but I know the iovec pointer passed to xs_talkv is read-only. But I
> don't know how to express this in this function.

Use __UNCONST and add a comment why it is safe.


> If I change struct iovec iovec to const, then the compiler complains
> that I'm writing to a read-only member.

Making struct iovec const doesn't make the target type of the iov_base
pointer const, so compiler is right in this case.  You promise to not
modify the structure and you do.

SY, Uwe
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