Document the .options file usage.

[apps/agl-service-can-low-level.git] / pb.h

diff --git a/pb.h b/pb.h
index bf6b35e..c996bf9 100644 (file)
--- a/pb.h
+++ b/pb.h
@@ -6,7 +6,7 @@
  * see pb_encode.h or pb_decode.h
  */
 
-#define NANOPB_VERSION nanopb-0.2.1-dev
+#define NANOPB_VERSION nanopb-0.2.2-dev
 
 #ifdef PB_SYSTEM_HEADER
 #include PB_SYSTEM_HEADER
@@ -30,7 +30,7 @@
 #   define PB_PACKED_STRUCT_START _Pragma("pack(push, 1)")
 #   define PB_PACKED_STRUCT_END _Pragma("pack(pop)")
 #   define pb_packed
-#elif defined(_MSC_VER)
+#elif defined(_MSC_VER) && (_MSC_VER >= 1500)
     /* For Microsoft Visual C++ */
 #   define PB_PACKED_STRUCT_START __pragma(pack(push, 1))
 #   define PB_PACKED_STRUCT_END __pragma(pack(pop))
@@ -203,10 +203,19 @@ typedef struct _pb_istream_t pb_istream_t;
 typedef struct _pb_ostream_t pb_ostream_t;
 typedef struct _pb_callback_t pb_callback_t;
 struct _pb_callback_t {
+#ifdef PB_OLD_CALLBACK_STYLE
+    /* Deprecated since nanopb-0.2.1 */
     union {
         bool (*decode)(pb_istream_t *stream, const pb_field_t *field, void *arg);
         bool (*encode)(pb_ostream_t *stream, const pb_field_t *field, const void *arg);
     } funcs;
+#else
+    /* New function signature, which allows modifying arg contents in callback. */
+    union {
+        bool (*decode)(pb_istream_t *stream, const pb_field_t *field, void **arg);
+        bool (*encode)(pb_ostream_t *stream, const pb_field_t *field, void * const *arg);
+    } funcs;
+#endif    
     
     /* Free arg for use by callback */
     void *arg;
@@ -224,7 +233,7 @@ typedef enum {
 #define pb_membersize(st, m) (sizeof ((st*)0)->m)
 #define pb_arraysize(st, m) (pb_membersize(st, m) / pb_membersize(st, m[0]))
 #define pb_delta(st, m1, m2) ((int)offsetof(st, m1) - (int)offsetof(st, m2))
-#define pb_delta_end(st, m1, m2) (offsetof(st, m1) == offsetof(st, m2) \
+#define pb_delta_end(st, m1, m2) (int)(offsetof(st, m1) == offsetof(st, m2) \
                                   ? offsetof(st, m1) \
                                   : offsetof(st, m1) - offsetof(st, m2) - pb_membersize(st, m2))
 #define PB_LAST_FIELD {0,(pb_type_t) 0,0,0,0,0,0}