Set CI build warning level to -Wall -Wextra -Wpedantic -Werror and fix all warnings

src/ArduinoCloudProperty.cpp

@@ -26,7 +26,7 @@ static unsigned long getTimestamp() {
   #ifdef ARDUINO_ARCH_SAMD
   return rtc.getEpoch();
   #else
-#warning "No RTC available on this architecture - ArduinoIoTCloud will not keep track of local change timestamps ."
+#pragma message "No RTC available on this architecture - ArduinoIoTCloud will not keep track of local change timestamps ."
   return 0;
   #endif
 }
@@ -35,19 +35,19 @@ static unsigned long getTimestamp() {
    CTOR/DTOR
  ******************************************************************************/
 ArduinoCloudProperty::ArduinoCloudProperty()
-  : _name(""),
-    _permission(Permission::Read),
-    _update_callback_func(nullptr),
-    _sync_callback_func(nullptr),
-    _has_been_updated_once(false),
-    _has_been_modified_in_callback(false),
-    _min_delta_property(0.0f),
-    _min_time_between_updates_millis(0),
-    _last_updated_millis(0),
-    _update_interval_millis(0),
-    _last_local_change_timestamp(0),
-    _last_cloud_change_timestamp(0),
-    _map_data_list(nullptr) {
+  :   _name(""),
+      _min_delta_property(0.0f),
+      _min_time_between_updates_millis(0),
+      _permission(Permission::Read),
+      _update_callback_func(nullptr),
+      _sync_callback_func(nullptr),
+      _has_been_updated_once(false),
+      _has_been_modified_in_callback(false),
+      _last_updated_millis(0),
+      _update_interval_millis(0),
+      _last_local_change_timestamp(0),
+      _last_cloud_change_timestamp(0),
+      _map_data_list(nullptr) {
 }
 
 /******************************************************************************

src/ArduinoCloudProperty.h

@@ -178,9 +178,9 @@ class ArduinoCloudProperty {
     };
   protected:
     /* Variables used for UpdatePolicy::OnChange */
+    String             _name;
     float              _min_delta_property;
     unsigned long      _min_time_between_updates_millis;
-    String             _name;
 
   private:
     Permission         _permission;

src/ArduinoCloudThing.cpp

@@ -47,8 +47,8 @@ ArduinoCloudThing::ArduinoCloudThing() :
   _numPrimitivesProperties(0),
   _isSyncMessage(false),
   _currentPropertyName(""),
-  _currentPropertyTime(0),
-  _currentPropertyBaseTime(0)
+  _currentPropertyBaseTime(0),
+  _currentPropertyTime(0)
 {}
 
 /******************************************************************************
@@ -515,5 +515,5 @@ void onForceCloudSync(ArduinoCloudProperty & property) {
   property.execCallbackOnChange();
 }
 
-void onForceDeviceSync(ArduinoCloudProperty & property) {
+void onForceDeviceSync(ArduinoCloudProperty & /* property */) {
 }

src/ArduinoCloudThing.h

@@ -36,8 +36,8 @@
    CONSTANTS
  ******************************************************************************/
 
-static bool ON  = true;
-static bool OFF = false;
+static bool const ON  = true;
+static bool const OFF = false;
 
 static long const ON_CHANGE = -1;
 static long const SECONDS   = 1;

src/lib/tinycbor/src/cborencoder.c

@@ -39,6 +39,9 @@
 #include <stdlib.h>
 #include <string.h>
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
 /**
  * \defgroup CborEncoding Encoding to CBOR
  * \brief Group of functions used to encode data to CBOR.
@@ -642,4 +645,6 @@ CborError cbor_encoder_close_container(CborEncoder *encoder, const CborEncoder *
  * \sa cbor_encoder_init(), cbor_encoder_get_buffer_size(), CborEncoding
  */
 
+#pragma GCC diagnostic pop
+
 /** @} */

src/lib/tinycbor/src/cborencoder_close_container_checked.c

@@ -30,6 +30,9 @@
 
 #include "cbor.h"
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
 /**
  * \addtogroup CborEncoding
  * @{
@@ -54,4 +57,6 @@ CborError cbor_encoder_close_container_checked(CborEncoder *encoder, const CborE
     return cbor_encoder_close_container(encoder, containerEncoder);
 }
 
+#pragma GCC diagnostic pop
+
 /** @} */

src/lib/tinycbor/src/cborerrorstrings.c

@@ -28,6 +28,9 @@
 #  define _(msg)    msg
 #endif
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
 /**
  * \enum CborError
  * \ingroup CborGlobals
@@ -180,3 +183,5 @@ const char *cbor_error_string(CborError error)
     }
     return cbor_error_string(CborUnknownError);
 }
+
+#pragma GCC diagnostic pop

src/lib/tinycbor/src/cborparser.c

@@ -38,6 +38,9 @@
 
 #include <string.h>
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
 /**
  * \defgroup CborParsing Parsing CBOR streams
  * \brief Group of functions used to parse CBOR streams.
@@ -1427,4 +1430,6 @@ CborError cbor_value_get_half_float(const CborValue *value, void *result)
     return CborNoError;
 }
 
+#pragma GCC diagnostic pop
+
 /** @} */

src/lib/tinycbor/src/cborparser_dup_string.c

@@ -36,6 +36,9 @@
 #include "compilersupport_p.h"
 #include <stdlib.h>
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
 /**
  * \fn CborError cbor_value_dup_text_string(const CborValue *value, char **buffer, size_t *buflen, CborValue *next)
  *
@@ -117,3 +120,5 @@ CborError _cbor_value_dup_string(const CborValue *value, void **buffer, size_t *
     }
     return CborNoError;
 }
+
+#pragma GCC diagnostic pop

src/lib/tinycbor/src/cborpretty.c

@@ -36,6 +36,9 @@
 #include <inttypes.h>
 #include <string.h>
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
 /**
  * \defgroup CborPretty Converting CBOR to text
  * \brief Group of functions used to convert CBOR to text form.
@@ -575,4 +578,6 @@ CborError cbor_value_to_pretty_stream(CborStreamFunction streamFunction, void *t
     return value_to_pretty(streamFunction, token, value, flags, CBOR_PARSER_MAX_RECURSIONS);
 }
 
+#pragma GCC diagnostic pop
+
 /** @} */

src/lib/tinycbor/src/cborpretty_stdio.c

@@ -26,6 +26,9 @@
 #include <stdarg.h>
 #include <stdio.h>
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
 static CborError cbor_fprintf(void *out, const char *fmt, ...)
 {
     int n;
@@ -85,3 +88,4 @@ CborError cbor_value_to_pretty_advance_flags(FILE *out, CborValue *value, int fl
     return cbor_value_to_pretty_stream(cbor_fprintf, out, value, flags);
 }
 
+#pragma GCC diagnostic pop

src/lib/tinycbor/src/cbortojson.c

@@ -40,6 +40,9 @@
 #include <stdlib.h>
 #include <string.h>
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
 /**
  * \defgroup CborToJson Converting CBOR to JSON
  * \brief Group of functions used to convert CBOR to JSON.
@@ -696,4 +699,6 @@ CborError cbor_value_to_json_advance(FILE *out, CborValue *value, int flags)
     return value_to_json(out, value, flags, cbor_value_get_type(value), &status);
 }
 
+#pragma GCC diagnostic pop
+
 /** @} */

src/lib/tinycbor/src/cborvalidation.c

@@ -45,6 +45,9 @@
 #  define CBOR_PARSER_MAX_RECURSIONS 1024
 #endif
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
 /**
  * \addtogroup CborParsing
  * @{
@@ -661,6 +664,8 @@ CborError cbor_value_validate(const CborValue *it, uint32_t flags)
     return CborNoError;
 }
 
+#pragma GCC diagnostic pop
+
 /**
  * @}
  */

src/lib/tinycbor/src/open_memstream.c

@@ -39,6 +39,9 @@ typedef size_t LenType;
 
 #include "compilersupport_p.h"
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
 struct Buffer
 {
     char **ptr;
@@ -57,8 +60,8 @@ static RetType write_to_buffer(void *cookie, const char *data, LenType len)
         return -1;
 
     if (newsize > b->alloc) {
-        // make room
-        size_t newalloc = newsize + newsize / 2 + 1;    // give 50% more room
+        /* make room */
+        size_t newalloc = newsize + newsize / 2 + 1;    /* give 50% more room */
         ptr = realloc(ptr, newalloc);
         if (ptr == NULL)
             return -1;
@@ -104,3 +107,4 @@ FILE *open_memstream(char **bufptr, size_t *lenptr)
 #endif
 }
 
+#pragma GCC diagnostic pop

src/types/CloudColor.h

@@ -52,19 +52,15 @@ class Color {
     }
 
     bool setColorRGB(uint8_t R, uint8_t G, uint8_t B) {
-      if (R < 0 || R > 255 || G < 0 || G > 255 || B < 0 || B > 255) {
-        return false;
-      }
       float temp[3];
       float max, min, delta;
-      uint8_t imax, imin;
+      uint8_t imax;
       temp[0] = (float)R / 255;
       temp[1] = (float)G / 255;
       temp[2] = (float)B / 255;
       max = temp[0];
       imax = 0;
       min = temp[0];
-      imin = 0;
 
       for (uint8_t j = 0; j < 3; j++) {
 
@@ -74,7 +70,6 @@ class Color {
         }
         if (temp[j] <= min) {
           min = temp[j];
-          imin = j;
         }
       }
 

src/types/CloudFloat.h

@@ -88,12 +88,10 @@ class CloudFloat : public ArduinoCloudProperty {
       return operator=(_value - 1.0f);
     }
     CloudFloat operator++(int) {
-      float f = _value;
       operator=(_value + 1.0f);
       return CloudFloat(_value);
     }
     CloudFloat operator--(int) {
-      float f = _value;
       operator=(_value - 1.0f);
       return CloudFloat(_value);
     }

src/types/CloudInt.h

@@ -89,12 +89,10 @@ class CloudInt : public ArduinoCloudProperty {
       return operator=(--_value);
     }
     CloudInt operator++(int) {
-      int temp = _value;
       operator=(_value + 1);
       return CloudInt(_value);
     }
     CloudInt operator--(int) {
-      int temp = _value;
       operator=(_value - 1);
       return CloudInt(_value);
     }

test/CMakeLists.txt

@@ -51,6 +51,7 @@ set(TEST_SRCS
 ##########################################################################
 
 add_definitions(-DHOST_BUILD)
+add_compile_options(-Wall -Wextra -Wpedantic -Werror)
 
 set(CMAKE_C_FLAGS   ${CMAKE_C_FLAGS}   "--coverage")
 set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "--coverage")

test/src/test_CloudColor.cpp

@@ -32,7 +32,6 @@ SCENARIO("Arduino Cloud Properties ", "[ArduinoCloudThing::CloudColor]") {
   WHEN("Set and Get different RGB colors") {
     GIVEN("CloudProtocol::V2") {
 
-      bool verify;
       uint8_t r, g, b;
 
       CloudColor color_test = CloudColor(0.0, 0.0, 0.0);