MQTT C Client Libraries Internals: Data Fields - Variables

| MQTT C Client Libraries Internals

### - r -

- rc : Ack , Connack
- reasonCode : MQTTAsync_disconnectOptions , MQTTAsync_failureData5 , MQTTAsync_successData5
- reasonCodeCount : MQTTAsync_successData5
- reasonCodes : MQTTAsync_successData5 , Unsuback
- reliable : MQTTClient_connectOptions
- reserved : Connack
- retain : Header
- retainAsPublished : MQTTSubscribe_options
- retained : MQTTAsync_message , MQTTAsync_willOptions , MQTTClient_message , MQTTClient_willOptions
- retainHandling : MQTTSubscribe_options
- retryInterval : Clients , MQTTAsync_connectOptions , MQTTClient_connectOptions
- returned : MQTTClient_connectOptions
- root : Tree