[UFFI-Users] Re: using uffi.

[Immanuel Litzroth]

Immanuel Litzroth <immanuell at enfocus.be> writes:

> I have been using uffi to write a ffi to portmidi library in
> sbcl/cmucl andI have some questions.
>
> 1) what is the way to get the address of a stack-allocated foreign
>    variable. I have used pointer-address but sbcl gives a type error
>    on that. 
>    (pointer-address obj) ->   `(system:sap-int (alien:alien-sap ,obj))
>    when i use (alien:alien-sap ,obj) the type error disappears. 

I have just answered my first question. If you do a 
(with-foreign-object (a type) 
a is bound to a pointer to type during the body. I didn't think the
documentation was clear on this point. 
Immanuel