Fix Warnings (#1744)

* Remove -w (Suppress all warnings, including those which GNU CPP issues by default.) and add back in -Wall (Turn on all optional warnings which are desirable for normal code.) from build_flags

* Fixes warning: suggest parentheses around '+' in operand of '&' [-Wparentheses]

* Fixes warning: "CONFIG_LITTLEFS_FOR_IDF_3_2" redefined

* Fixes warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'uint64_t {aka long long unsigned int}' [-Wformat=]

* Fixes warning: enumeration value 'onoff' not handled in switch [-Wswitch]

* Fixes warning: "ntohl" redefined, warning: "ntohs" redefined, warning: "htonl" redefined, warning: "htons" redefined
- Original fix: 858f8f4ee9

* Fixes warning: unused variable 'mainSeg' [-Wunused-variable]

* Fixes warning: unused variable 'start' [-Wunused-variable]

* (untested!) Fixes warning: operation on '...' may be undefined [-Wsequence-point]

* Fixes warning: unused variable

* Fixes warning: unused variable and warning: narrowing conversion

* Fixes warning: unused variable

* Fixes warning: unused variable

* (untested!) Fixes warning: statement has no effect [-Wunused-value]

* Fixes warning: control reaches end of non-void function

* Fixes warning: unused variable

* Fixes warning: left operand of comma operator has no effect

* Fixes warning: no return statement in function returning non-void

* (untested!) Fixes warning: ISO C++ forbids converting a string constant to 'char*' and fixes warning: unused variable 'nPins'

* Fixes warning: deleting array 'dmxData'

* Fixes warning: unused variable

* Remove all warning suppression buildflags

Co-authored-by: Louis Beaudoin <louis@embedded-creations.com>
Co-authored-by: Aircoookie <dev.aircoookie@gmail.com>

platformio.ini

@@ -95,16 +95,6 @@ debug_flags = -D DEBUG=1 -D WLED_DEBUG -DDEBUG_ESP_WIFI -DDEBUG_ESP_HTTP_CLIENT
 #  This reduces the OTA size with ~45KB, so it's especially useful on low memory boards (512k/1m).
 # ------------------------------------------------------------------------------
 build_flags =
-  -Wno-switch
-  -Wno-deprecated-declarations
-  -Wno-write-strings
-  -Wno-unused-variable
-  -Wno-unused-value
-  -Wno-sign-compare
-  -Wno-unused-but-set-variable
-  -Wno-return-type
-  -Wno-sequence-point
-  -Wno-narrowing
   -DMQTT_MAX_PACKET_SIZE=1024
   -DSECURE_CLIENT=SECURE_CLIENT_BEARSSL
   -DBEARSSL_SSL_BASIC
@@ -121,9 +111,6 @@ build_flags =
   ; -D USERMOD_SENSORSTOMQTT
 
 build_unflags =
-  -Wall
-  -Wreorder
-  -Wdeprecated-declarations
 
 # enables all features for travis CI
 build_flags_all_features =
@@ -159,7 +146,7 @@ build_flags =
   -DMIMETYPE_MINIMAL
 
 [esp32]
-build_flags = -w -g
+build_flags = -g
   -DARDUINO_ARCH_ESP32
   -DCONFIG_LITTLEFS_FOR_IDF_3_2
 

wled00/FX.cpp

@@ -1568,9 +1568,9 @@ uint16_t WS2812FX::mode_oscillate(void)
 
   if (SEGENV.call == 0)
   {
-    oscillators[0] = {SEGLEN/4,   SEGLEN/8,  1, 1};
-    oscillators[1] = {SEGLEN/4*3, SEGLEN/8,  1, 2};
-    oscillators[2] = {SEGLEN/4*2, SEGLEN/8, -1, 1};
+    oscillators[0] = {(int16_t)(SEGLEN/4),   (int8_t)(SEGLEN/8),  1, 1};
+    oscillators[1] = {(int16_t)(SEGLEN/4*3), (int8_t)(SEGLEN/8),  1, 2};
+    oscillators[2] = {(int16_t)(SEGLEN/4*2), (int8_t)(SEGLEN/8), -1, 1};
   }
 
   uint32_t cycleTime = 20 + (2 * (uint32_t)(255 - SEGMENT.speed));
@@ -1919,7 +1919,6 @@ uint16_t WS2812FX::mode_noise16_2()
   for (uint16_t i = 0; i < SEGLEN; i++) {
 
     uint16_t shift_x = SEGENV.step >> 6;                         // x as a function of time
-    uint16_t shift_y = SEGENV.step/42;
 
     uint32_t real_x = (i + shift_x) * scale;                  // calculate the coordinates within the noise field
 
@@ -3198,8 +3197,8 @@ uint16_t WS2812FX::mode_plasma(void) {
   uint8_t thatPhase = beatsin8(7,-64,64);
 
   for (int i = 0; i < SEGLEN; i++) {   // For each of the LED's in the strand, set color &  brightness based on a wave as follows:
-    uint8_t colorIndex = cubicwave8((i*(1+ 3*(SEGMENT.speed >> 5)))+(thisPhase) & 0xFF)/2   // factor=23 // Create a wave and add a phase change and add another wave with its own phase change.
-                             + cos8((i*(1+ 2*(SEGMENT.speed >> 5)))+(thatPhase) & 0xFF)/2;  // factor=15 // Hey, you can even change the frequencies if you wish.
+    uint8_t colorIndex = cubicwave8(((i*(1+ 3*(SEGMENT.speed >> 5)))+(thisPhase)) & 0xFF)/2   // factor=23 // Create a wave and add a phase change and add another wave with its own phase change.
+                             + cos8(((i*(1+ 2*(SEGMENT.speed >> 5)))+(thatPhase)) & 0xFF)/2;  // factor=15 // Hey, you can even change the frequencies if you wish.
     uint8_t thisBright = qsub8(colorIndex, beatsin8(6,0, (255 - SEGMENT.intensity)|0x01 ));
     CRGB color = ColorFromPalette(currentPalette, colorIndex, thisBright, LINEARBLEND);
     setPixelColor(i, color.red, color.green, color.blue);

wled00/FX_fcn.cpp

@@ -380,7 +380,6 @@ uint8_t WS2812FX::getPaletteCount()
 
 
 bool WS2812FX::setEffectConfig(uint8_t m, uint8_t s, uint8_t in, uint8_t p) {
-  uint8_t mainSeg = getMainSegmentId();
   Segment& seg = _segments[getMainSegmentId()];
   uint8_t modePrev = seg.mode, speedPrev = seg.speed, intensityPrev = seg.intensity, palettePrev = seg.palette;
 

wled00/cfg.cpp

@@ -446,7 +446,6 @@ void serializeConfig() {
 
   JsonArray hw_led_ins = hw_led.createNestedArray("ins");
 
-  uint16_t start = 0;
   for (uint8_t s = 0; s < busses.getNumBusses(); s++) {
     Bus *bus = busses.getBus(s);
     if (!bus || bus->getLength()==0) break;

wled00/e131.cpp

@@ -35,7 +35,8 @@ void handleDDPPacket(e131_packet_t* p) {
   realtimeLock(realtimeTimeoutMs, REALTIME_MODE_DDP);
   
   for (uint16_t i = start; i < stop; i++) {
-    setRealtimePixel(i, data[c++], data[c++], data[c++], 0);
+    setRealtimePixel(i, data[c], data[c+1], data[c+2], 0);
+    c+=3;
   }
 
   bool push = p->flags & DDP_PUSH_FLAG;
@@ -187,11 +188,13 @@ void handleE131Packet(e131_packet_t* p, IPAddress clientIP, byte protocol){
         uint16_t ledsTotal = previousLeds + (dmxChannels - dmxOffset +1) / dmxChannelsPerLed;
         if (!is4Chan) {
           for (uint16_t i = previousLeds; i < ledsTotal; i++) {
-            setRealtimePixel(i, e131_data[dmxOffset++], e131_data[dmxOffset++], e131_data[dmxOffset++], 0);
+            setRealtimePixel(i, e131_data[dmxOffset], e131_data[dmxOffset+1], e131_data[dmxOffset+2], 0);
+            dmxOffset+=3;
           }
         } else {
           for (uint16_t i = previousLeds; i < ledsTotal; i++) {
-            setRealtimePixel(i, e131_data[dmxOffset++], e131_data[dmxOffset++], e131_data[dmxOffset++], e131_data[dmxOffset++]);
+            setRealtimePixel(i, e131_data[dmxOffset], e131_data[dmxOffset+1], e131_data[dmxOffset+2], e131_data[dmxOffset+3]);
+            dmxOffset+=4;
           }
         }
         break;

wled00/file.cpp

@@ -34,7 +34,6 @@ File f;
 //wrapper to find out how long closing takes
 void closeFile() {
   DEBUGFS_PRINT(F("Close -> "));
-  uint32_t s = millis();
   f.close();
   DEBUGFS_PRINTF("took %d ms\n", millis() - s);
   doCloseFile = false;
@@ -53,7 +52,6 @@ bool bufferedFind(const char *target, bool fromStart = true) {
   size_t targetLen = strlen(target);
 
   size_t index = 0;
-  byte c;
   uint16_t bufsize = 0, count = 0;
   byte buf[FS_BUFSIZE];
   if (fromStart) f.seek(0);

wled00/json.cpp

@@ -134,7 +134,6 @@ void deserializeSegment(JsonObject elem, byte it)
           if (sz == 0 && sz > 4) break;
 
           int rgbw[] = {0,0,0,0};
-          byte cp = copyArray(icol, rgbw);
 
           if (set < 2) stop = start + 1;
           for (uint16_t i = start; i < stop; i++) {

wled00/lx_parser.cpp

@@ -23,7 +23,6 @@ bool parseLx(int lxValue, byte rgbw[4])
     ok = true;
     float tmpBri = floor((lxValue - 200000000) / 10000); ;
     uint16_t ct = (lxValue - 200000000) - (((uint8_t)tmpBri) * 10000);
-    float temp = 0;
 
     tmpBri *= 2.55;
     constrain(tmpBri, 0, 255);

wled00/src/dependencies/async-mqtt-client/AsyncMqttClient.cpp

@@ -37,10 +37,10 @@ AsyncMqttClient::AsyncMqttClient()
   _client.onPoll([](void* obj, AsyncClient* c) { (static_cast<AsyncMqttClient*>(obj))->_onPoll(c); }, this);
 
 #ifdef ESP32
-  sprintf(_generatedClientId, "esp32%06x", ESP.getEfuseMac());
+  sprintf(_generatedClientId, "esp32%06x", (uint32_t)ESP.getEfuseMac());
   _xSemaphore = xSemaphoreCreateMutex();
 #elif defined(ESP8266)
-  sprintf(_generatedClientId, "esp8266%06x", ESP.getChipId());
+  sprintf(_generatedClientId, "esp8266%06x", (uint32_t)ESP.getChipId());
 #endif
   _clientId = _generatedClientId;
 

wled00/src/dependencies/blynk/Blynk/BlynkProtocolDefs.h

@@ -93,7 +93,9 @@ struct BlynkHeader
 }
 BLYNK_ATTR_PACKED;
 
-#if !defined(htons) && (defined(ARDUINO) || defined(ESP8266) || defined(PARTICLE) || defined(__MBED__))
+#if defined(ESP32)
+    #include <lwip/ip_addr.h>
+#elif !defined(htons) && (defined(ARDUINO) || defined(ESP8266) || defined(PARTICLE) || defined(__MBED__))
     #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
         #define htons(x) ( ((x)<<8) | (((x)>>8)&0xFF) )
         #define htonl(x) ( ((x)<<24 & 0xFF000000UL) | \

wled00/src/dependencies/dmx/ESPDMX.cpp

@@ -77,10 +77,9 @@ void DMXESPSerial::write(int Channel, uint8_t value) {
 }
 
 void DMXESPSerial::end() {
-  delete dmxData;
   chanSize = 0;
   Serial1.end();
-  dmxStarted == false;
+  dmxStarted = false;
 }
 
 void DMXESPSerial::update() {

wled00/src/dependencies/espalexa/Espalexa.h

@@ -101,8 +101,8 @@ private:
       case EspalexaDeviceType::whitespectrum: return PSTR("Color temperature light");
       case EspalexaDeviceType::color:         return PSTR("Color light");
       case EspalexaDeviceType::extendedcolor: return PSTR("Extended color light");
+      default: return "";
     }
-    return "";
   }
   
   const char* modelidString(EspalexaDeviceType t)
@@ -113,8 +113,8 @@ private:
       case EspalexaDeviceType::whitespectrum: return "LWT010";
       case EspalexaDeviceType::color:         return "LST001";
       case EspalexaDeviceType::extendedcolor: return "LCT015";
+      default: return "";
     }
-    return "";
   }
   
   void encodeLightId(uint8_t idx, char* out)

wled00/src/dependencies/espalexa/EspalexaDevice.cpp

@@ -112,7 +112,6 @@ uint32_t EspalexaDevice::getRGB()
 {
   if (_rgb != 0) return _rgb; //color has not changed
   byte rgb[4]{0, 0, 0, 0}; 
-  float r, g, b, w;
   
   if (_mode == EspalexaColorMode::none) return 0;
 

wled00/um_manager.cpp

@@ -32,6 +32,7 @@ bool UsermodManager::add(Usermod* um)
   if (numMods >= WLED_MAX_USERMODS || um == nullptr) return false;
   ums[numMods] = um;
   numMods++;
+  return true;
 }
 
 byte UsermodManager::getModCount() {return numMods;}

wled00/wled.cpp

@@ -136,8 +136,6 @@ void prepareHostname(char* hostname)
 //handle Ethernet connection event
 void WiFiEvent(WiFiEvent_t event)
 {
-  char hostname[25] = "wled-";
-
   switch (event) {
 #if defined(ARDUINO_ARCH_ESP32) && defined(WLED_USE_ETHERNET)
     case SYSTEM_EVENT_ETH_START:
@@ -290,7 +288,6 @@ void WLED::setup()
   DEBUG_PRINT("esp8266 ");
   DEBUG_PRINTLN(ESP.getCoreVersion());
 #endif
-  int heapPreAlloc = ESP.getFreeHeap();
   DEBUG_PRINT("heap ");
   DEBUG_PRINTLN(ESP.getFreeHeap());
   registerUsermods();

wled00/wled.h

@@ -65,7 +65,9 @@
   #include <ESPmDNS.h>
   #include <AsyncTCP.h>
   //#include "SPIFFS.h"
-  #define CONFIG_LITTLEFS_FOR_IDF_3_2
+  #ifndef CONFIG_LITTLEFS_FOR_IDF_3_2
+    #define CONFIG_LITTLEFS_FOR_IDF_3_2
+  #endif
   #include <LITTLEFS.h>
 #endif
 
@@ -310,7 +312,7 @@ WLED_GLOBAL bool huePollingEnabled _INIT(false);           // poll hue bridge fo
 WLED_GLOBAL uint16_t huePollIntervalMs _INIT(2500);        // low values (< 1sec) may cause lag but offer quicker response
 WLED_GLOBAL char hueApiKey[47] _INIT("api");               // key token will be obtained from bridge
 WLED_GLOBAL byte huePollLightId _INIT(1);                  // ID of hue lamp to sync to. Find the ID in the hue app ("about" section)
-WLED_GLOBAL IPAddress hueIP _INIT((0, 0, 0, 0));           // IP address of the bridge
+WLED_GLOBAL IPAddress hueIP _INIT_N((( 0, 0, 0, 0))); // IP address of the bridge
 WLED_GLOBAL bool hueApplyOnOff _INIT(true);
 WLED_GLOBAL bool hueApplyBri _INIT(true);
 WLED_GLOBAL bool hueApplyColor _INIT(true);
@@ -473,7 +475,7 @@ WLED_GLOBAL int16_t currentPlaylist _INIT(0);
 // realtime
 WLED_GLOBAL byte realtimeMode _INIT(REALTIME_MODE_INACTIVE);
 WLED_GLOBAL byte realtimeOverride _INIT(REALTIME_OVERRIDE_NONE);
-WLED_GLOBAL IPAddress realtimeIP _INIT((0, 0, 0, 0));
+WLED_GLOBAL IPAddress realtimeIP _INIT_N(((0, 0, 0, 0)));;
 WLED_GLOBAL unsigned long realtimeTimeout _INIT(0);
 WLED_GLOBAL uint8_t tpmPacketCount _INIT(0);
 WLED_GLOBAL uint16_t tpmPayloadFrameSize _INIT(0);

wled00/wled_server.cpp

@@ -245,7 +245,7 @@ bool handleIfNoneMatchCacheHeader(AsyncWebServerRequest* request)
   return false;
 }
 
-bool setStaticContentCacheHeaders(AsyncWebServerResponse *response)
+void setStaticContentCacheHeaders(AsyncWebServerResponse *response)
 {
   response->addHeader(F("Cache-Control"),"max-age=2592000");
   response->addHeader(F("ETag"), String(VERSION));

wled00/xml.cpp

@@ -313,7 +313,7 @@ void getSettingsJS(byte subPage, char* dest)
     sappend('v',SET_F("LA"),strip.milliampsPerLed);
     if (strip.currentMilliamps)
     {
-      sappends('m',SET_F("(\"pow\")[0]"),"");
+      sappends('m',SET_F("(\"pow\")[0]"),(char*)"");
       olen -= 2; //delete ";
       oappendi(strip.currentMilliamps);
       oappend(SET_F("mA\";"));