ffi: add offset argument to ffi buffer functions.

* ffi.c (ffi_put_into, ffi_in, ffi_get, ffi_out): New offset
parameter.
(ffi_init): Re-register ffi-put-into, ffi-in, ffi-get and
ffi-out with new optional parameter.

* ffi.c (ffi_put_into, ffi_in, ffi_get, ffi_out): Declarations
updated.

* txr.1: Documented new argument on ffi-put-into, ffi-in
and ffi-get. The documentation for ffi-out doesn't exist!

1 files changed, 4 insertions, 4 deletions

diff --git a/ffi.h b/ffi.h
index 33ee549a..9d244885 100644
--- a/ffi.h
+++ b/ffi.h
@@ -85,11 +85,11 @@ val ffi_offsetof(val type, val memb);
 val ffi_arraysize(val type);
 val ffi_elemsize(val type);
 val ffi_elemtype(val type);
-val ffi_put_into(val dstbuf, val obj, val type);
+val ffi_put_into(val dstbuf, val obj, val type, val offset);
 val ffi_put(val obj, val type);
-val ffi_in(val srcbuf, val obj, val type, val copy_p);
-val ffi_get(val srcbuf, val type);
-val ffi_out(val dstbuf, val obj, val type, val copy_p);
+val ffi_in(val srcbuf, val obj, val type, val copy_p, val offset);
+val ffi_get(val srcbuf, val type, val offset);
+val ffi_out(val dstbuf, val obj, val type, val copy_p, val offset);
 val make_carray(val type, mem_t *data, cnum nelem, val ref, cnum offs);
 val carrayp(val obj);
 val carray_set_length(val carray, val nelem);