#define UNUSED(x) (void)(x)
#endif
+/* Compile-time assertion, used for checking compatible compilation options. */
+#ifndef STATIC_ASSERT
+#define STATIC_ASSERT(COND,MSG) typedef char static_assertion_##MSG[(COND)?1:-1];
+#endif
+
+/* Number of required fields to keep track of
+ * (change here or on compiler command line). */
+#ifndef PB_MAX_REQUIRED_FIELDS
+#define PB_MAX_REQUIRED_FIELDS 64
+#endif
+
+#if PB_MAX_REQUIRED_FIELDS < 64
+#error You should not lower PB_MAX_REQUIRED_FIELDS from the default value (64).
+#endif
+
/* List of possible field types. These are used in the autogenerated code.
* Least-significant 4 bits tell the scalar type
* Most-significant 4 bits specify repeated/required/packed etc.
/* This structure is used in auto-generated constants
* to specify struct fields.
- * You can change field sizes here if you need structures
+ * You can change field sizes if you need structures
* larger than 256 bytes or field tags larger than 256.
* The compiler should complain if your .proto has such
- * structures ("initializer too large for type").
+ * structures. Fix that by defining PB_FIELD_16BIT or
+ * PB_FIELD_32BIT.
*/
typedef struct _pb_field_t pb_field_t;
struct _pb_field_t {
+
+#if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)
uint8_t tag;
pb_type_t type;
uint8_t data_offset; /* Offset of field data, relative to previous field. */
int8_t size_offset; /* Offset of array size or has-boolean, relative to data */
uint8_t data_size; /* Data size in bytes for a single item */
uint8_t array_size; /* Maximum number of entries in array */
+#elif defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)
+ uint16_t tag;
+ pb_type_t type;
+ uint8_t data_offset;
+ int8_t size_offset;
+ uint16_t data_size;
+ uint16_t array_size;
+#else
+ uint32_t tag;
+ pb_type_t type;
+ uint8_t data_offset;
+ int8_t size_offset;
+ uint32_t data_size;
+ uint32_t array_size;
+#endif
/* Field definitions for submessage
* OR default value for all other non-array, non-callback types
#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) - pb_membersize(st, m2))
-#define PB_LAST_FIELD {0,0,0,0}
+#define PB_LAST_FIELD {0,(pb_type_t) 0,0,0}
+/* These macros are used for giving out error messages.
+ * They are mostly a debugging aid; the main error information
+ * is the true/false return value from functions.
+ * Some code space can be saved by disabling the error
+ * messages if not used.
+ */
+#ifdef PB_NO_ERRMSG
+#define PB_RETURN_ERROR(stream,msg) return false
+#define PB_GET_ERROR(stream) "(errmsg disabled)"
+#else
+#define PB_RETURN_ERROR(stream,msg) \
+ do {\
+ if ((stream)->errmsg == NULL) \
+ (stream)->errmsg = (msg); \
+ return false; \
+ } while(0)
+#define PB_GET_ERROR(stream) ((stream)->errmsg ? (stream)->errmsg : "(none)")
+#endif
#endif