CIF-class               Class to represent external Call InterFace
                        (CIF)
addFinalizer            Register a finalizer to garbage collect
                        allocated memory
addrOf                  Get the address of a native data instance
alloc                   Allocate memory
callCIF                 Dynamically invoke a compiled routine
free                    Explicitly release natively allocated memory
getNativeValue          Retrieve the value of a compiled object
getStructField          Access a native structure from R
makeClosure             Turn a function into a closure with some
                        non-local variables
prepCIF                 Create interface template for invoking compiled
                        routines with a given signature
setSlots                Run-time helper function to set slots of an
                        object by name
sizeof                  Compute the number of bytes the corresponding
                        FFI type occupies
structInfo              Get information about a C-level struct type
                        description
structType              Create a type description for a C-level
                        structure or array
voidType                Objects representing different native data
                        types
