fix some minor compiler warnings

src/hwmon.cpp

@@ -64,11 +64,11 @@ vector<string> HwmonInterface<HwmonT>::find_files(const string &path, const vect
 }
 
 template<>
-string HwmonInterface<SensorDriver>::filename(int index)
+string HwmonInterface<SensorDriver>::filename(unsigned int index)
 { return "temp" + std::to_string(index) + "_input"; }
 
 template<>
-string HwmonInterface<FanDriver>::filename(int index)
+string HwmonInterface<FanDriver>::filename(unsigned int index)
 { return "pwm" + std::to_string(index); }
 
 

src/hwmon.h

@@ -42,7 +42,7 @@ class HwmonInterface {
 
 private:
 	static vector<string> find_files(const string &path, const vector<unsigned int> &indices);
-	static string filename(int index);
+	static string filename(unsigned int index);
 
 	static vector<string> find_hwmons_by_model(const string &path, const string &model, unsigned char depth);
 	static vector<string> find_hwmons_by_name(const string &path, const string &name, unsigned char depth);

src/libsensors.h

@@ -65,7 +65,7 @@ class LibsensorsInterface
 	};
 
 	LibsensorsInterface();
-	friend InitGuard;
+	friend class InitGuard;
 
 
 	static void initialize_lm_sensors();

src/sensors.h

@@ -184,7 +184,7 @@ class LMSensorsDriver : public SensorDriver {
 		opt<vector<int>> correction = nullopt,
 		opt<unsigned int> max_errors = nullopt
 	);
-	virtual ~LMSensorsDriver();
+	virtual ~LMSensorsDriver() override;
 
 	const string &chip_name() const;
 	const vector<string> &feature_names() const;

src/thinkfan.cpp

@@ -54,7 +54,7 @@ seconds sleeptime(5);
 seconds tmp_sleeptime = sleeptime;
 float bias_level(0);
 float depulse = 0;
-TemperatureState temp_state(0);
+static TemperatureState temp_state(0);
 std::atomic<unsigned char> tolerate_errors(0);
 
 std::condition_variable sleep_cond;

src/wtf_ptr.h

@@ -17,7 +17,7 @@ class wtf_ptr : public shared_ptr<unique_ptr<T>>, public std::enable_shared_from
 	using shared_ptr<unique_ptr<T>>::shared_ptr;
 
 	template<typename T1>
-	wtf_ptr<T>(wtf_ptr<T1> &&ptr)
+	wtf_ptr(wtf_ptr<T1> &&ptr)
 		: shared_ptr<unique_ptr<T>>(new unique_ptr<T>(ptr.release()))
 	{}