#include <stdbool.h>
#include "pb.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+
/* Lightweight output stream.
* You can provide callback for writing or use pb_ostream_from_buffer.
*
*/
struct _pb_ostream_t
{
+#ifdef PB_BUFFER_ONLY
+ /* Callback pointer is not used in buffer-only configuration.
+ * Having an int pointer here allows binary compatibility but
+ * gives an error if someone tries to assign callback function.
+ * Also, NULL pointer marks a 'sizing stream' that does not
+ * write anything.
+ */
+ int *callback;
+#else
bool (*callback)(pb_ostream_t *stream, const uint8_t *buf, size_t count);
+#endif
void *state; /* Free field for use by callback implementation */
size_t max_size; /* Limit number of output bytes written (or use SIZE_MAX). */
size_t bytes_written;
* instead, it has the same functionality with a less confusing interface. */
bool pb_enc_submessage(pb_ostream_t *stream, const pb_field_t *field, const void *src);
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
#endif