[racket-dev] u8vector->cpointer documented but unimplemented

At Sun, 26 Sep 2010 10:18:13 -0700, John Clements wrote:
> The function u8vector->cpointer is documented, but doesn't exist; this is 
> presumably because the u8vector functions are actually byte-string functions, 
> but it's not clear to me whether the absence of u8vector->cpointer is an 
> oversight or whether it would violate abstractions in bad ways and hence 
> simply shouldn't exist.

I think it's just an oversight, and I'll fix it.