ffi: implement in-semantics for carray, cptr.

* ffi.c (ff_cptr_in, ffi_carray_in): New static functions.
(ffi_type_compile): Wire in new functions for dynamically
compiled cptr and carray types.
(ffi_init_types): Also, wire in ffi_cptr_in function for
the non-parametrized cptr type.
(carray_set_ptr): New function.

* ffi.h (carray_set_ptr): Declared.

* txr.1: Documented.

1 files changed, 1 insertions, 0 deletions

diff --git a/ffi.h b/ffi.h
index d788d9e8..37a42d65 100644
--- a/ffi.h
+++ b/ffi.h
@@ -104,6 +104,7 @@ val carray_type(val carray);
 val length_carray(val carray);
 val copy_carray(val carray);
 mem_t *carray_ptr(val carray, val type, val self);
+void carray_set_ptr(val carray, val type, mem_t *ptr, val self);
 val carray_vec(val vec, val type, val null_term_p);
 val carray_list(val list, val type, val null_term_p);
 val carray_blank(val nelem, val type);