mongodb - Counting Documents in Mongo Cursor with C & BSON. -

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i'm working on project , need count amount of documents (mongodb) in cursor bson , c.

here code: 

        bson_buffer_init(query_buf);         bson_append_string(query_buf, "url", bson_iterator_string(it));          bson_from_buffer(query, query_buf);         similar = mongo_find(conn, "testing.test", query, null, 0, 0, 0);         while(mongo_cursor_next(similar))         {             bson_iterator it2[1];              if(bson_find(it2, &similar->current, "url"))             {                 printf("%s\n", bson_iterator_string(it2));             }          }

how alter in order count documents in each cursor (the above in loop, url different each pass)?

have tried mongo_count method?

according source, it's right here: https://github.com/mongodb/mongo-c-driver/blob/master/src/mongo.c#l385

note c drivers still considered alpha quality. if find bugs, please let mongodb team know: http://jira.mongodb.org/


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