use NULLs rather than empty strings

256dpi · 256dpi · commit 15225bb5a708 · 2016-04-01T17:17:55.000+02:00
diff --git a/src/MQTTClient.cpp b/src/MQTTClient.cpp
@@ -43,7 +43,7 @@ void MQTTClient::setWill(const char * topic, const char * payload) {
 }
 
 boolean MQTTClient::connect(const char * clientId) {
-  return this->connect(clientId, "", "");
+  return this->connect(clientId, NULL, NULL);
 }
 
 boolean MQTTClient::connect(const char * clientId, const char * username, const char * password) {

Original file line number	Diff line number	Diff line change
`@@ -43,7 +43,7 @@ void MQTTClient::setWill(const char * topic, const char * payload) {`
`43`	`43`	`}`
`44`	`44`
`45`	`45`	`boolean MQTTClient::connect(const char * clientId) {`
`46`		`- return this->connect(clientId, "", "");`
	`46`	`+ return this->connect(clientId, NULL, NULL);`
`47`	`47`	`}`
`48`	`48`
`49`	`49`	`boolean MQTTClient::connect(const char * clientId, const char * username, const char * password) {`