bson_iter_document()
Synopsis
#define BSON_ITER_HOLDS_DOCUMENT(iter) \
   (bson_iter_type ((iter)) == BSON_TYPE_DOCUMENT)
void
bson_iter_document (const bson_iter_t *iter,
                    uint32_t          *document_len,
                    const uint8_t    **document);Parameters
iter  | 
A bson_iter_t.  | 
document_len  | 
A location for the length of the document in bytes.  | 
document  | 
A location for the document buffer.  | 
Description
The bson_iter_document() function shall retrieve the raw buffer of a sub-document from iter. iter MUST be on an element that is of type BSON_TYPE_DOCUMENT. This can be verified with bson_iter_type() or the BSON_ITER_HOLDS_DOCUMENT() macro.