ffi: overhaul ffi-call API and document it.

* ffi.c (ffi_call_wrap): Take struct args * parameters
rather than a list. Check that number of arguments
matches required number from call desc. No need
to build argument array any more; we just refer to
the one in args. Also, the first two parameters
are reversed for consistency with other functions.
(ffi_init): Update registration of ffi-call to
reflect type change.

* ffi.h (ffi_call_wrap): Declaration updated.

* txr.1: Documented ffi-call.

1 files changed, 1 insertions, 1 deletions

diff --git a/ffi.h b/ffi.h
index 5545126e..3f415082 100644
--- a/ffi.h
+++ b/ffi.h
@@ -55,7 +55,7 @@ val ffi_type_compile(val syntax);
 val ffi_make_call_desc(val ntotal, val nfixed, val rettype, val argtypes);
 val ffi_make_closure(val fun, val call_desc, val safe_p_in, val abort_ret_in);
 mem_t *ffi_closure_get_fptr(val closure);
-val ffi_call_wrap(val ffi_call_desc, val fptr, val args);
+val ffi_call_wrap(val fptr, val ffi_call_desc, struct args *args);
 val ffi_typedef(val name, val type);
 val ffi_size(val type);
 val ffi_put_into(val dstbuf, val obj, val type);