Null to nullptr to appease linter

Signed-off-by: Sara Damiano <sdamiano@stroudcenter.org>

Author: SRGDamia1

src/LoggerBase.cpp

@@ -1865,7 +1865,7 @@ void Logger::publishDataQueuedToRemotes(bool internetPresent) {
 #endif  // MS_LOGGERBASE_POSTS
 
     for (uint8_t i = 0; i < MAX_NUMBER_SENDERS; i++) {
-        if (dataPublishers[i] != NULL) {
+        if (dataPublishers[i] != nullptr) {
             _dataPubInstance = i;
             PRINTOUT(F("\npubDQTR Sending data to ["), i, F("]"),
                      dataPublishers[i]->getEndpoint());
@@ -2010,7 +2010,7 @@ void Logger::publishDataQueuedToRemotes(bool internetPresent) {
                             // Check for enough battery power
                             if (cnt_for_pwr_analysis++ >=
                                 _sendAtOneTimeMaxX_num) {
-                                if (NULL != _bat_handler_atl) {
+                                if (nullptr != _bat_handler_atl) {
                                     // Measure  battery
                                     _bat_handler_atl(LB_PWR_USEABLE_REQ);
                                     if (!_bat_handler_atl(

src/modems/DigiXBeeCellularTransparent.h

@@ -151,8 +151,8 @@ class DigiXBeeCellularTransparent : public DigiXBee {
     DigiXBeeCellularTransparent(Stream* modemStream, int8_t powerPin,
                                 int8_t statusPin, bool useCTSStatus,
                                 int8_t modemResetPin, int8_t modemSleepRqPin,
-                                const char* apn, const char* user = NULL,
-                                const char* pwd = NULL);
+                                const char* apn, const char* user = nullptr,
+                                const char* pwd = nullptr);
     /**
      * @brief Destroy the Digi XBee Cellular Transparent object - no action
      * needed

src/modems/DigiXBeeWifi.cpp

@@ -591,12 +591,12 @@ void DigiXBeeWifi::setWiFiId(const char* newSsid, bool copyId) {
             WiFiId2[newSsid_sz] = 0;  // Trim max size
             newSsid_sz          = WIFI_SSID_MAX_sz;
         }
-        if (NULL == _ssid_buf) {
+        if (nullptr == _ssid_buf) {
             _ssid_buf = new char[newSsid_sz + 2];  // Allow for trailing 0
         } else {
             PRINTOUT(F("\nLoggerModem::setWiFiId error - expected NULL ptr"));
         }
-        if (NULL == _ssid_buf) {
+        if (nullptr == _ssid_buf) {
             // Major problem
             PRINTOUT(F("\nLoggerModem::setWiFiId error -no buffer "),
                      _ssid_buf);
@@ -625,12 +625,12 @@ void DigiXBeeWifi::setWiFiPwd(const char* newPwd, bool copyId) {
             pwd2[newPwd_sz] = 0;  // Trim max size
             newPwd_sz       = WIFI_PWD_MAX_sz;
         }
-        if (NULL == _pwd_buf) {
+        if (nullptr == _pwd_buf) {
             _pwd_buf = new char[newPwd_sz + 2];  // Allow for trailing 0
         } else {
             PRINTOUT(F("\nLoggerModem::setWiFiPwd error - expected NULL ptr"));
         }
-        if (NULL == _pwd_buf) {
+        if (nullptr == _pwd_buf) {
             // Major problem
             PRINTOUT(F("\nLoggerModem::setWiFiPwd error -no buffer "),
                      _pwd_buf);

src/modems/DigiXBeeWifi.h

@@ -176,8 +176,8 @@ class DigiXBeeWifi : public DigiXBee {
     bool        _maintainAssociation;
 
     // Access Management
-    char* _ssid_buf = NULL;
-    char* _pwd_buf  = NULL;
+    char* _ssid_buf = nullptr;
+    char* _pwd_buf  = nullptr;
 
     uint16_t updateModemMetadata_cnt = 0;
     // This causes the Xbee to reset after this number of transmission attempts

src/publishers/EnviroDIYPublisher.cpp

@@ -32,7 +32,7 @@ const char* EnviroDIYPublisher::timestampTag       = "\",\"timestamp\":\"";
 // Constructors
 EnviroDIYPublisher::EnviroDIYPublisher() : dataPublisher() {
     // MS_DBG(F("dataPublisher object created"));
-    _registrationToken = NULL;
+    _registrationToken = nullptr;
     setDIYHost(enviroDIYHost);
     setTimerPostTimeout_mS(TIMER_EDP_POST_TIMEOUT_DEF_MSEC);
     setTimerPostPacing_mS(TIMER_EDP_POSTED_PACING_DEF_MSEC);