>>>>> "blake" == blake <[EMAIL PROTECTED]> writes:
blake> I have been working with cmucl 18e and the Intel IPP performance
blake> libraries and would like to be able to write an interface from lisp to
blake> call their functions as simply as possible. Intel however has a variety
blake> of functions which require structures to be passed by value, e.g. a
blake> region of interest structure, size.width, size.height for an image copy
blake> function. The way I have done it in the past is to write a small C
blake> wrapper function around the intel function which either translates the
blake> pointer from lisp and then calls the function in C, or which creates the
blake> structure itself and passes it.
blake> In looking at the CMUCL ffi manual, it explicitly says that structures
blake> can't be passed by value. Is there some other way to call the Intel
blake> functions which require such structues by value? For example, is this
The obvious way would be to write a wrapper that takes a pointer to
the structure. The wrapper copies the structure to a local structure
and then calls the Intel function with local structure.
Ray
