More fixing of warnings after noticing clang was skipping some tests.

examples/temp_sensor/src/TemperatureFilter.c

@@ -43,7 +43,7 @@ void TemperatureFilter_ProcessInput(float temperature)
     else
     {
       /* Otherwise apply our low-pass filter to smooth the values */
-      temperatureInCelcius = (temperatureInCelcius * 0.75f) + (temperature * 0.25);
+      temperatureInCelcius = (temperatureInCelcius * 0.75f) + (temperature * 0.25f);
     }
   }
 }

examples/temp_sensor/src/TimerInterruptConfigurator.c

@@ -43,7 +43,16 @@ void Timer_EnableInterrupt(void)
 
 static inline void SetInterruptHandler(void)
 {
+  /* Assigning a function pointer to a void* interrupt vector register is
+   * intentional embedded hardware code; suppress the pedantic warning. */
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+#endif
   AT91C_BASE_AIC->AIC_SVR[AT91C_ID_TC0] = Timer_InterruptHandler;
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
 }
 
 static inline void ConfigureInterruptSourceModeRegister(void)

examples/temp_sensor/src/UsartModel.c

@@ -14,7 +14,7 @@
 #include <math.h>
 
 char formattedTemperature[32];
-char* wakeup = "It's Awesome Time!\n";
+char wakeup[] = "It's Awesome Time!\n";
 
 uint8 UsartModel_GetBaudRateRegisterSetting(void)
 {

examples/temp_sensor/src/UsartPutChar.c

@@ -18,6 +18,6 @@ void Usart_PutChar(char data)
 #ifdef SIMULATE
   printf("%c", data);
 #else
-  AT91C_BASE_US0->US_THR = data;
+  AT91C_BASE_US0->US_THR = (uint8)data;
 #endif
 }

examples/temp_sensor/test/TestUsartConductor.c

@@ -22,9 +22,10 @@ void tearDown(void)
 
 void testShouldInitializeHardwareWhenInitCalled(void)
 {
+  char wakeup[] = "Hey there!";
   UsartModel_GetBaudRateRegisterSetting_ExpectAndReturn(4);
-  UsartModel_GetWakeupMessage_ExpectAndReturn("Hey there!");
-  UsartHardware_TransmitString_Expect("Hey there!");
+  UsartModel_GetWakeupMessage_ExpectAndReturn(wakeup);
+  UsartHardware_TransmitString_Expect(wakeup);
   UsartHardware_Init_Expect(4);
 
   UsartConductor_Init();
@@ -39,9 +40,10 @@ void testRunShouldNotDoAnythingIfSchedulerSaysItIsNotTimeYet(void)
 
 void testRunShouldGetCurrentTemperatureAndTransmitIfSchedulerSaysItIsTime(void)
 {
+  char temperature[] = "hey there";
   TaskScheduler_DoUsart_ExpectAndReturn(TRUE);
-  UsartModel_GetFormattedTemperature_ExpectAndReturn("hey there");
-  UsartHardware_TransmitString_Expect("hey there");
+  UsartModel_GetFormattedTemperature_ExpectAndReturn(temperature);
+  UsartHardware_TransmitString_Expect(temperature);
 
   UsartConductor_Run();
 }

examples/temp_sensor/test/TestUsartHardware.c

@@ -40,5 +40,6 @@ void testTransmitStringShouldSendDesiredStringOutUsingUsart(void)
   Usart_PutChar_Expect('l');
   Usart_PutChar_Expect('o');
   
-  UsartHardware_TransmitString("hello");
+  char msg[] = "hello";
+  UsartHardware_TransmitString(msg);
 }