1 files changed, 14 insertions, 1 deletions

diff --git a/msgpack.c b/msgpack.c
index b5ba7ae..bd4efdf 100644
--- a/msgpack.c
+++ b/msgpack.c
@@ -184,8 +184,21 @@ int msgpack_read_map     (msgpack_t *pack, size_t *length);
 int msgpack_read_array2  (const msgpack_t *pack, struct mp_array *m);
 int msgpack_read_map2    (const msgpack_t *pack, struct mp_map   *m);
 
+#define CHECK_WRITE_ARGS(type, pack, m)                                   \
+    do {                                                                  \
+        if(!(pack) || !(pack)->bin || (pack)->size == 0)                  \
+            return ERROR((type), MSGPACK_ERROR_INVALID_PACK);             \
+        if((pack)->bin[0] == 0xc)                                         \
+            return ERROR2((type), MSGPACK_ERROR_WRONG_TYPE, MSGPACK_NIL); \
+        if(!(m))                                                          \
+            return ERROR((type), MSGPACK_ERROR_INVALID_ARGUMENT);         \
+    } while(0)
+
+int msgpack_write_int     (msgpack_t *pack, const union mp_int   *m, int subtype)
+    ;// {
+    
+// }
 
-int msgpack_write_int     (msgpack_t *pack, const union mp_int   *m, int subtype);
 int msgpack_write_bool    (msgpack_t *pack, const       int      *m);
 int msgpack_write_float   (msgpack_t *pack, const union mp_float *m, int subtype);