C++11 cleanup on constructors (#6000)

* C++11 cleanup on constructors dir script

40 files changed, 117 insertions, 180 deletions

diff --git a/src/script/cpp_api/s_async.cpp b/src/script/cpp_api/s_async.cpp
index 722359066..5cca5fc03 100644
--- a/src/script/cpp_api/s_async.cpp
+++ b/src/script/cpp_api/s_async.cpp
@@ -34,13 +34,6 @@ extern "C" {
 #include "common/c_internal.h"
 
 /******************************************************************************/
-AsyncEngine::AsyncEngine() :
-	initDone(false),
-	jobIdCounter(0)
-{
-}
-
-/******************************************************************************/
 AsyncEngine::~AsyncEngine()
 {
 
diff --git a/src/script/cpp_api/s_async.h b/src/script/cpp_api/s_async.h
index 45f935d0a..94b55db6e 100644
--- a/src/script/cpp_api/s_async.h
+++ b/src/script/cpp_api/s_async.h
@@ -39,24 +39,18 @@ class AsyncEngine;
 // Data required to queue a job
 struct LuaJobInfo
 {
-	LuaJobInfo() :
-		serializedFunction(""),
-		serializedParams(""),
-		serializedResult(""),
-		id(0),
-		valid(false)
-	{}
+	LuaJobInfo() {};
 
 	// Function to be called in async environment
-	std::string serializedFunction;
+	std::string serializedFunction = "";
 	// Parameter to be passed to function
-	std::string serializedParams;
+	std::string serializedParams = "";
 	// Result of function call
-	std::string serializedResult;
+	std::string serializedResult = "";
 	// JobID used to identify a job and match it to callback
-	unsigned int id;
+	unsigned int id = 0;
 
-	bool valid;
+	bool valid = false;
 };
 
 // Asynchronous working environment
@@ -68,7 +62,7 @@ public:
 	void *run();
 
 private:
-	AsyncEngine *jobDispatcher;
+	AsyncEngine *jobDispatcher = nullptr;
 };
 
 // Asynchornous thread and job management
@@ -76,7 +70,7 @@ class AsyncEngine {
 	friend class AsyncWorkerThread;
 	typedef void (*StateInitializer)(lua_State *L, int top);
 public:
-	AsyncEngine();
+	AsyncEngine() {};
 	~AsyncEngine();
 
 	/**
@@ -137,13 +131,13 @@ protected:
 
 private:
 	// Variable locking the engine against further modification
-	bool initDone;
+	bool initDone = false;
 
 	// Internal store for registred state initializers
 	std::vector<StateInitializer> stateInitializers;
 
 	// Internal counter to create job IDs
-	unsigned int jobIdCounter;
+	unsigned int jobIdCounter = 0;
 
 	// Mutex to protect job queue
 	std::mutex jobQueueMutex;
diff --git a/src/script/cpp_api/s_base.cpp b/src/script/cpp_api/s_base.cpp
index 4d7461c5b..aaf26a9c3 100644
--- a/src/script/cpp_api/s_base.cpp
+++ b/src/script/cpp_api/s_base.cpp
@@ -71,9 +71,7 @@ public:
 	ScriptApiBase
 */
 
-ScriptApiBase::ScriptApiBase() :
-	m_luastackmutex(),
-	m_gamedef(NULL)
+ScriptApiBase::ScriptApiBase()
 {
 #ifdef SCRIPTAPI_LOCK_DEBUG
 	m_lock_recursion_count = 0;
@@ -111,14 +109,6 @@ ScriptApiBase::ScriptApiBase() :
 
 	lua_pushstring(m_luastack, porting::getPlatformName());
 	lua_setglobal(m_luastack, "PLATFORM");
-
-	// m_secure gets set to true inside
-	// ScriptApiSecurity::initializeSecurity(), if neccessary.
-	// Default to false otherwise
-	m_secure = false;
-
-	m_environment = NULL;
-	m_guiengine = NULL;
 }
 
 ScriptApiBase::~ScriptApiBase()
diff --git a/src/script/cpp_api/s_base.h b/src/script/cpp_api/s_base.h
index ed056db31..38ee9901b 100644
--- a/src/script/cpp_api/s_base.h
+++ b/src/script/cpp_api/s_base.h
@@ -119,7 +119,7 @@ protected:
 
 	std::recursive_mutex m_luastackmutex;
 	std::string     m_last_run_mod;
-	bool            m_secure;
+	bool            m_secure = false;
 #ifdef SCRIPTAPI_LOCK_DEBUG
 	int             m_lock_recursion_count;
 	std::thread::id m_owning_thread;
@@ -128,11 +128,11 @@ protected:
 private:
 	static int luaPanic(lua_State *L);
 
-	lua_State*      m_luastack;
+	lua_State      *m_luastack = nullptr;
 
-	IGameDef*       m_gamedef;
-	Environment*    m_environment;
-	GUIEngine*      m_guiengine;
+	IGameDef       *m_gamedef = nullptr;
+	Environment    *m_environment = nullptr;
+	GUIEngine      *m_guiengine = nullptr;
 };
 
 #endif /* S_BASE_H_ */
diff --git a/src/script/lua_api/l_areastore.cpp b/src/script/lua_api/l_areastore.cpp
index b81985a7f..1e30e704e 100644
--- a/src/script/lua_api/l_areastore.cpp
+++ b/src/script/lua_api/l_areastore.cpp
@@ -300,20 +300,19 @@ int LuaAreaStore::l_from_file(lua_State *L)
 	return deserialization_helper(L, o->as, is);
 }
 
-LuaAreaStore::LuaAreaStore()
+LuaAreaStore::LuaAreaStore() : as(AreaStore::getOptimalImplementation())
 {
-	this->as = AreaStore::getOptimalImplementation();
 }
 
 LuaAreaStore::LuaAreaStore(const std::string &type)
 {
 #if USE_SPATIAL
 	if (type == "LibSpatial") {
-		this->as = new SpatialAreaStore();
+		as = new SpatialAreaStore();
 	} else
 #endif
 	{
-		this->as = new VectorAreaStore();
+		as = new VectorAreaStore();
 	}
 }
 
diff --git a/src/script/lua_api/l_areastore.h b/src/script/lua_api/l_areastore.h
index 8292e7712..9cb6249d0 100644
--- a/src/script/lua_api/l_areastore.h
+++ b/src/script/lua_api/l_areastore.h
@@ -49,7 +49,7 @@ private:
 	static int l_from_file(lua_State *L);
 
 public:
-	AreaStore *as;
+	AreaStore *as = nullptr;
 
 	LuaAreaStore();
 	LuaAreaStore(const std::string &type);
diff --git a/src/script/lua_api/l_camera.cpp b/src/script/lua_api/l_camera.cpp
index 862384198..ef842a222 100644
--- a/src/script/lua_api/l_camera.cpp
+++ b/src/script/lua_api/l_camera.cpp
@@ -4,9 +4,8 @@
 #include "content_cao.h"
 #include "camera.h"
 
-LuaCamera::LuaCamera(Camera *m)
+LuaCamera::LuaCamera(Camera *m) : m_camera(m)
 {
-	m_camera = m;
 }
 
 void LuaCamera::create(lua_State *L, Camera *m)
diff --git a/src/script/lua_api/l_camera.h b/src/script/lua_api/l_camera.h
index 04921ad03..c4a0f877c 100644
--- a/src/script/lua_api/l_camera.h
+++ b/src/script/lua_api/l_camera.h
@@ -26,7 +26,7 @@ private:
 	static int l_get_look_horizontal(lua_State *L);
 	static int l_get_aspect_ratio(lua_State *L);
 
-	Camera *m_camera;
+	Camera *m_camera = nullptr;
 
 public:
 	LuaCamera(Camera *m);
diff --git a/src/script/lua_api/l_itemstackmeta.h b/src/script/lua_api/l_itemstackmeta.h
index 4ef64a91e..6e841d2dc 100644
--- a/src/script/lua_api/l_itemstackmeta.h
+++ b/src/script/lua_api/l_itemstackmeta.h
@@ -28,7 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 class ItemStackMetaRef : public MetaDataRef
 {
 private:
-	ItemStack *istack;
+	ItemStack *istack = nullptr;
 
 	static const char className[];
 	static const luaL_Reg methods[];
diff --git a/src/script/lua_api/l_localplayer.cpp b/src/script/lua_api/l_localplayer.cpp
index 7ec4eaa62..7f932cbca 100644
--- a/src/script/lua_api/l_localplayer.cpp
+++ b/src/script/lua_api/l_localplayer.cpp
@@ -21,9 +21,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "l_internal.h"
 #include "script/common/c_converter.h"
 
-LuaLocalPlayer::LuaLocalPlayer(LocalPlayer *m)
+LuaLocalPlayer::LuaLocalPlayer(LocalPlayer *m) : m_localplayer(m)
 {
-	m_localplayer = m;
 }
 
 void LuaLocalPlayer::create(lua_State *L, LocalPlayer *m)
diff --git a/src/script/lua_api/l_localplayer.h b/src/script/lua_api/l_localplayer.h
index e56ec808f..e618e6be5 100644
--- a/src/script/lua_api/l_localplayer.h
+++ b/src/script/lua_api/l_localplayer.h
@@ -67,7 +67,7 @@ private:
 
 	static int l_get_movement(lua_State *L);
 
-	LocalPlayer *m_localplayer;
+	LocalPlayer *m_localplayer = nullptr;
 
 public:
 	LuaLocalPlayer(LocalPlayer *m);
diff --git a/src/script/lua_api/l_minimap.cpp b/src/script/lua_api/l_minimap.cpp
index afb3766fb..be981c884 100644
--- a/src/script/lua_api/l_minimap.cpp
+++ b/src/script/lua_api/l_minimap.cpp
@@ -24,9 +24,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "minimap.h"
 #include "settings.h"
 
-LuaMinimap::LuaMinimap(Minimap *m)
+LuaMinimap::LuaMinimap(Minimap *m) : m_minimap(m)
 {
-	m_minimap = m;
 }
 
 void LuaMinimap::create(lua_State *L, Minimap *m)
diff --git a/src/script/lua_api/l_minimap.h b/src/script/lua_api/l_minimap.h
index ba702b0b1..d4fbf6330 100644
--- a/src/script/lua_api/l_minimap.h
+++ b/src/script/lua_api/l_minimap.h
@@ -48,7 +48,7 @@ private:
 	static int l_set_shape(lua_State *L);
 	static int l_get_shape(lua_State *L);
 
-	Minimap *m_minimap;
+	Minimap *m_minimap = nullptr;
 
 public:
 	LuaMinimap(Minimap *m);
diff --git a/src/script/lua_api/l_nodemeta.cpp b/src/script/lua_api/l_nodemeta.cpp
index 5dfa6d52e..aa8d1c453 100644
--- a/src/script/lua_api/l_nodemeta.cpp
+++ b/src/script/lua_api/l_nodemeta.cpp
@@ -171,14 +171,12 @@ bool NodeMetaRef::handleFromTable(lua_State *L, int table, Metadata *_meta)
 
 NodeMetaRef::NodeMetaRef(v3s16 p, ServerEnvironment *env):
 	m_p(p),
-	m_env(env),
-	m_is_local(false)
+	m_env(env)
 {
 }
 
 NodeMetaRef::NodeMetaRef(Metadata *meta):
-	m_meta(meta),
-	m_is_local(true)
+	m_meta(meta)
 {
 }
 
diff --git a/src/script/lua_api/l_nodemeta.h b/src/script/lua_api/l_nodemeta.h
index dd4260ff9..72d26ef36 100644
--- a/src/script/lua_api/l_nodemeta.h
+++ b/src/script/lua_api/l_nodemeta.h
@@ -34,9 +34,9 @@ class NodeMetadata;
 class NodeMetaRef : public MetaDataRef {
 private:
 	v3s16 m_p;
-	ServerEnvironment *m_env;
-	Metadata *m_meta;
-	bool m_is_local;
+	ServerEnvironment *m_env = nullptr;
+	Metadata *m_meta = nullptr;
+	bool m_is_local = false;
 
 	static const char className[];
 	static const luaL_Reg methodsServer[];
diff --git a/src/script/lua_api/l_nodetimer.h b/src/script/lua_api/l_nodetimer.h
index ae362d8b3..df77ed98f 100644
--- a/src/script/lua_api/l_nodetimer.h
+++ b/src/script/lua_api/l_nodetimer.h
@@ -29,7 +29,7 @@ class NodeTimerRef : public ModApiBase
 {
 private:
 	v3s16 m_p;
-	ServerEnvironment *m_env;
+	ServerEnvironment *m_env = nullptr;
 
 	static const char className[];
 	static const luaL_Reg methods[];
diff --git a/src/script/lua_api/l_object.h b/src/script/lua_api/l_object.h
index 9801ce02b..77874f00c 100644
--- a/src/script/lua_api/l_object.h
+++ b/src/script/lua_api/l_object.h
@@ -33,16 +33,29 @@ class RemotePlayer;
 */
 
 class ObjectRef : public ModApiBase {
-private:
-	ServerActiveObject *m_object;
-
-	static const char className[];
-	static const luaL_Reg methods[];
 public:
+	ObjectRef(ServerActiveObject *object);
+
+	~ObjectRef();
+
+	// Creates an ObjectRef and leaves it on top of stack
+	// Not callable from Lua; all references are created on the C side.
+	static void create(lua_State *L, ServerActiveObject *object);
+
+	static void set_null(lua_State *L);
+
+	static void Register(lua_State *L);
+
 	static ObjectRef *checkobject(lua_State *L, int narg);
 
 	static ServerActiveObject* getobject(ObjectRef *ref);
 private:
+	ServerActiveObject *m_object = nullptr;
+
+	static const char className[];
+	static const luaL_Reg methods[];
+
+
 	static LuaEntitySAO* getluaobject(ObjectRef *ref);
 
 	static PlayerSAO* getplayersao(ObjectRef *ref);
@@ -319,18 +332,6 @@ private:
 	// get_nametag_attributes(self)
 	static int l_get_nametag_attributes(lua_State *L);
 
-public:
-	ObjectRef(ServerActiveObject *object);
-
-	~ObjectRef();
-
-	// Creates an ObjectRef and leaves it on top of stack
-	// Not callable from Lua; all references are created on the C side.
-	static void create(lua_State *L, ServerActiveObject *object);
-
-	static void set_null(lua_State *L);
-
-	static void Register(lua_State *L);
 };
 
 #endif /* L_OBJECT_H_ */
diff --git a/src/script/lua_api/l_settings.cpp b/src/script/lua_api/l_settings.cpp
index 70807f3d2..3dc5c9574 100644
--- a/src/script/lua_api/l_settings.cpp
+++ b/src/script/lua_api/l_settings.cpp
@@ -32,9 +32,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 LuaSettings::LuaSettings(Settings *settings, const std::string &filename) :
 	m_settings(settings),
-	m_filename(filename),
-	m_is_own_settings(false),
-	m_write_allowed(true)
+	m_filename(filename)
 {
 }
 
diff --git a/src/script/lua_api/l_settings.h b/src/script/lua_api/l_settings.h
index 54b003ab3..a664b4494 100644
--- a/src/script/lua_api/l_settings.h
+++ b/src/script/lua_api/l_settings.h
@@ -57,10 +57,10 @@ private:
 	// to_table(self) -> {[key1]=value1,...}
 	static int l_to_table(lua_State *L);
 
-	Settings *m_settings;
+	Settings *m_settings = nullptr;
 	std::string m_filename;
-	bool m_is_own_settings;
-	bool m_write_allowed;
+	bool m_is_own_settings = false;
+	bool m_write_allowed = true;
 
 public:
 	LuaSettings(Settings *settings, const std::string &filename);
diff --git a/src/script/lua_api/l_storage.h b/src/script/lua_api/l_storage.h
index ec6f8d941..eaf7ec9f6 100644
--- a/src/script/lua_api/l_storage.h
+++ b/src/script/lua_api/l_storage.h
@@ -38,7 +38,7 @@ public:
 class StorageRef : public MetaDataRef
 {
 private:
-	ModMetadata *m_object;
+	ModMetadata *m_object = nullptr;
 
 	static const char className[];
 	static const luaL_Reg methods[];
diff --git a/src/script/lua_api/l_vmanip.cpp b/src/script/lua_api/l_vmanip.cpp
index 254a7e5a6..ed5042bcf 100644
--- a/src/script/lua_api/l_vmanip.cpp
+++ b/src/script/lua_api/l_vmanip.cpp
@@ -365,22 +365,17 @@ int LuaVoxelManip::l_get_emerged_area(lua_State *L)
 	return 2;
 }
 
-LuaVoxelManip::LuaVoxelManip(MMVManip *mmvm, bool is_mg_vm)
+LuaVoxelManip::LuaVoxelManip(MMVManip *mmvm, bool is_mg_vm) : vm(mmvm), is_mapgen_vm(is_mg_vm)
 {
-	this->vm           = mmvm;
-	this->is_mapgen_vm = is_mg_vm;
 }
 
-LuaVoxelManip::LuaVoxelManip(Map *map)
+LuaVoxelManip::LuaVoxelManip(Map *map) : vm(new MMVManip(map))
 {
-	this->vm = new MMVManip(map);
-	this->is_mapgen_vm = false;
 }
 
 LuaVoxelManip::LuaVoxelManip(Map *map, v3s16 p1, v3s16 p2)
 {
-	this->vm = new MMVManip(map);
-	this->is_mapgen_vm = false;
+	vm = new MMVManip(map);
 
 	v3s16 bp1 = getNodeBlockPos(p1);
 	v3s16 bp2 = getNodeBlockPos(p2);
diff --git a/src/script/lua_api/l_vmanip.h b/src/script/lua_api/l_vmanip.h
index b6a69f36a..e706f3727 100644
--- a/src/script/lua_api/l_vmanip.h
+++ b/src/script/lua_api/l_vmanip.h
@@ -35,7 +35,7 @@ class LuaVoxelManip : public ModApiBase
 {
 private:
 	std::map<v3s16, MapBlock *> modified_blocks;
-	bool is_mapgen_vm;
+	bool is_mapgen_vm = false;
 
 	static const char className[];
 	static const luaL_Reg methods[];
@@ -65,7 +65,7 @@ private:
 	static int l_get_emerged_area(lua_State *L);
 
 public:
-	MMVManip *vm;
+	MMVManip *vm = nullptr;
 
 	LuaVoxelManip(MMVManip *mmvm, bool is_mapgen_vm);
 	LuaVoxelManip(Map *map, v3s16 p1, v3s16 p2);
diff --git a/src/threading/thread.cpp b/src/threading/thread.cpp
index cc4d65656..8f54fb762 100644
--- a/src/threading/thread.cpp
+++ b/src/threading/thread.cpp
@@ -60,8 +60,6 @@ DEALINGS IN THE SOFTWARE.
 
 Thread::Thread(const std::string &name) :
 	m_name(name),
-	m_retval(NULL),
-	m_joinable(false),
 	m_request_stop(false),
 	m_running(false)
 {
@@ -130,7 +128,7 @@ bool Thread::wait()
 	m_thread_obj->join();
 
 	delete m_thread_obj;
-	m_thread_obj = NULL;
+	m_thread_obj = nullptr;
 
 	assert(m_running == false);
 	m_joinable = false;
@@ -162,7 +160,7 @@ bool Thread::kill()
 	wait();
 #endif
 
-	m_retval       = NULL;
+	m_retval       = nullptr;
 	m_joinable     = false;
 	m_request_stop = false;
 
diff --git a/src/threading/thread.h b/src/threading/thread.h
index 284c8e46c..dab5d0ec7 100644
--- a/src/threading/thread.h
+++ b/src/threading/thread.h
@@ -145,8 +145,8 @@ private:
 
 	static void threadProc(Thread *thr);
 
-	void *m_retval;
-	bool m_joinable;
+	void *m_retval = nullptr;
+	bool m_joinable = false;
 	std::atomic<bool> m_request_stop;
 	std::atomic<bool> m_running;
 	std::mutex m_mutex;
diff --git a/src/unittest/test.cpp b/src/unittest/test.cpp
index 570807ba7..911b647f7 100644
--- a/src/unittest/test.cpp
+++ b/src/unittest/test.cpp
@@ -70,16 +70,16 @@ public:
 	virtual void unregisterModStorage(const std::string &name) {}
 
 private:
-	IItemDefManager *m_itemdef;
-	INodeDefManager *m_nodedef;
-	ICraftDefManager *m_craftdef;
-	ITextureSource *m_texturesrc;
-	IShaderSource *m_shadersrc;
-	ISoundManager *m_soundmgr;
-	MtEventManager *m_eventmgr;
-	scene::ISceneManager *m_scenemgr;
-	IRollbackManager *m_rollbackmgr;
-	EmergeManager *m_emergemgr;
+	IItemDefManager *m_itemdef = nullptr;
+	INodeDefManager *m_nodedef = nullptr;
+	ICraftDefManager *m_craftdef = nullptr;
+	ITextureSource *m_texturesrc = nullptr;
+	IShaderSource *m_shadersrc = nullptr;
+	ISoundManager *m_soundmgr = nullptr;
+	MtEventManager *m_eventmgr = nullptr;
+	scene::ISceneManager *m_scenemgr = nullptr;
+	IRollbackManager *m_rollbackmgr = nullptr;
+	EmergeManager *m_emergemgr = nullptr;
 };
 
 
diff --git a/src/unittest/test_connection.cpp b/src/unittest/test_connection.cpp
index d63322d69..3ea3d7444 100644
--- a/src/unittest/test_connection.cpp
+++ b/src/unittest/test_connection.cpp
@@ -53,12 +53,7 @@ void TestConnection::runTests(IGameDef *gamedef)
 
 struct Handler : public con::PeerHandler
 {
-	Handler(const char *a_name)
-	{
-		count = 0;
-		last_id = 0;
-		name = a_name;
-	}
+	Handler(const char *a_name) : name(a_name) {}
 
 	void peerAdded(con::Peer *peer)
 	{
@@ -76,8 +71,8 @@ struct Handler : public con::PeerHandler
 		count--;
 	}
 
-	s32 count;
-	u16 last_id;
+	s32 count = 0;
+	u16 last_id = 0;
 	const char *name;
 };
 
diff --git a/src/util/areastore.cpp b/src/util/areastore.cpp
index cef67da2c..c660502f6 100644
--- a/src/util/areastore.cpp
+++ b/src/util/areastore.cpp
@@ -58,7 +58,7 @@ const Area *AreaStore::getArea(u32 id) const
 {
 	AreaMap::const_iterator it = areas_map.find(id);
 	if (it == areas_map.end())
-		return NULL;
+		return nullptr;
 	return &it->second;
 }
 
@@ -239,7 +239,7 @@ bool SpatialAreaStore::insertArea(Area *a)
 	if (!areas_map.insert(std::make_pair(a->id, *a)).second)
 		// ID is not unique
 		return false;
-	m_tree->insertData(0, NULL, get_spatial_region(a->minedge, a->maxedge), a->id);
+	m_tree->insertData(0, nullptr, get_spatial_region(a->minedge, a->maxedge), a->id);
 	invalidateCache();
 	return true;
 }
diff --git a/src/util/areastore.h b/src/util/areastore.h
index bebecfd78..8c22c3ad7 100644
--- a/src/util/areastore.h
+++ b/src/util/areastore.h
@@ -38,14 +38,14 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 
 struct Area {
-	Area() : id(U32_MAX) {}
+	Area() {}
 	Area(const v3s16 &mine, const v3s16 &maxe) :
-		id(U32_MAX), minedge(mine), maxedge(maxe)
+		minedge(mine), maxedge(maxe)
 	{
 		sortBoxVerticies(minedge, maxedge);
 	}
 
-	u32 id;
+	u32 id = U32_MAX;
 	v3s16 minedge, maxedge;
 	std::string data;
 };
@@ -54,10 +54,7 @@ struct Area {
 class AreaStore {
 public:
 	AreaStore() :
-		m_cache_enabled(true),
-		m_cacheblock_radius(64),
-		m_res_cache(1000, &cacheMiss, this),
-		m_next_id(0)
+		m_res_cache(1000, &cacheMiss, this)
 	{}
 
 	virtual ~AreaStore() {}
@@ -123,13 +120,13 @@ private:
 	/// Called by the cache when a value isn't found in the cache.
 	static void cacheMiss(void *data, const v3s16 &mpos, std::vector<Area *> *dest);
 
-	bool m_cache_enabled;
+	bool m_cache_enabled = true;
 	/// Range, in nodes, of the getAreasForPos cache.
 	/// If you modify this, call invalidateCache()
-	u8 m_cacheblock_radius;
+	u8 m_cacheblock_radius = 64;
 	LRUCache<v3s16, std::vector<Area *> > m_res_cache;
 
-	u32 m_next_id;
+	u32 m_next_id = 0;
 };
 
 
@@ -165,8 +162,8 @@ protected:
 	virtual void getAreasForPosImpl(std::vector<Area *> *result, v3s16 pos);
 
 private:
-	SpatialIndex::ISpatialIndex *m_tree;
-	SpatialIndex::IStorageManager *m_storagemanager;
+	SpatialIndex::ISpatialIndex *m_tree = nullptr;
+	SpatialIndex::IStorageManager *m_storagemanager = nullptr;
 
 	class VectorResultVisitor : public SpatialIndex::IVisitor {
 	public:
@@ -194,8 +191,8 @@ private:
 		}
 
 	private:
-		SpatialAreaStore *m_store;
-		std::vector<Area *> *m_result;
+		SpatialAreaStore *m_store = nullptr;
+		std::vector<Area *> *m_result = nullptr;
 	};
 };
 
diff --git a/src/util/auth.cpp b/src/util/auth.cpp
index 912987259..c329e36e6 100644
--- a/src/util/auth.cpp
+++ b/src/util/auth.cpp
@@ -71,7 +71,7 @@ std::string generate_srp_verifier(const std::string &name,
 	// get modified if &salt_ptr isn't NULL.
 	char *salt_ptr = (char *)salt.c_str();
 
-	char *bytes_v = NULL;
+	char *bytes_v = nullptr;
 	size_t verifier_len = 0;
 	gen_srp_v(name, password, &salt_ptr, &salt_len, &bytes_v, &verifier_len);
 	std::string verifier = std::string(bytes_v, verifier_len);
@@ -84,9 +84,9 @@ void generate_srp_verifier_and_salt(const std::string &name,
 	const std::string &password, std::string *verifier,
 	std::string *salt)
 {
-	char *bytes_v = NULL;
+	char *bytes_v = nullptr;
 	size_t verifier_len;
-	char *salt_ptr = NULL;
+	char *salt_ptr = nullptr;
 	size_t salt_len;
 	gen_srp_v(name, password, &salt_ptr, &salt_len, &bytes_v, &verifier_len);
 	*verifier = std::string(bytes_v, verifier_len);
diff --git a/src/util/enriched_string.cpp b/src/util/enriched_string.cpp
index a7fc3a828..05d7b8c25 100644
--- a/src/util/enriched_string.cpp
+++ b/src/util/enriched_string.cpp
@@ -30,8 +30,7 @@ EnrichedString::EnrichedString()
 EnrichedString::EnrichedString(const std::wstring &string,
 		const std::vector<SColor> &colors):
 	m_string(string),
-	m_colors(colors),
-	m_has_background(false)
+	m_colors(colors)
 {}
 
 EnrichedString::EnrichedString(const std::wstring &s, const SColor &color)
diff --git a/src/util/enriched_string.h b/src/util/enriched_string.h
index 1aca8948a..a3b8feb2a 100644
--- a/src/util/enriched_string.h
+++ b/src/util/enriched_string.h
@@ -84,7 +84,7 @@ public:
 private:
 	std::wstring m_string;
 	std::vector<irr::video::SColor> m_colors;
-	bool m_has_background;
+	bool m_has_background = false;
 	irr::video::SColor m_background;
 };
 
diff --git a/src/util/numeric.h b/src/util/numeric.h
index 3b1b85f64..5143c92e6 100644
--- a/src/util/numeric.h
+++ b/src/util/numeric.h
@@ -282,7 +282,7 @@ inline aabb3f getNodeBox(v3s16 p, float d)
 class IntervalLimiter
 {
 public:
-	IntervalLimiter() : m_accumulator(0) {}
+	IntervalLimiter() {}
 	/*
 		dtime: time from last call to this method
 		wanted_interval: interval wanted
@@ -300,7 +300,7 @@ public:
 	}
 
 private:
-	float m_accumulator;
+	float m_accumulator = 0.0f;
 };
 
 
diff --git a/src/util/pointedthing.cpp b/src/util/pointedthing.cpp
index ed3d4bb67..f1f1d3f20 100644
--- a/src/util/pointedthing.cpp
+++ b/src/util/pointedthing.cpp
@@ -23,16 +23,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "../exceptions.h"
 #include <sstream>
 
-PointedThing::PointedThing():
-	type(POINTEDTHING_NOTHING),
-	node_undersurface(0,0,0),
-	node_abovesurface(0,0,0),
-	node_real_undersurface(0,0,0),
-	intersection_point(0,0,0),
-	intersection_normal(0,0,0),
-	object_id(-1)
-{}
-
 std::string PointedThing::dump() const
 {
 	std::ostringstream os(std::ios::binary);
diff --git a/src/util/pointedthing.h b/src/util/pointedthing.h
index f695a4ebd..92c33968f 100644
--- a/src/util/pointedthing.h
+++ b/src/util/pointedthing.h
@@ -36,7 +36,7 @@ enum PointedThingType
 struct PointedThing
 {
 	//! The type of the pointed object.
-	PointedThingType type;
+	PointedThingType type = POINTEDTHING_NOTHING;
 	/*!
 	 * Only valid if type is POINTEDTHING_NODE.
 	 * The coordinates of the node which owns the
@@ -74,9 +74,9 @@ struct PointedThing
 	 * Only valid if type is POINTEDTHING_OBJECT.
 	 * The ID of the object the ray hit.
 	 */
-	s16 object_id;
+	s16 object_id = -1;
 
-	PointedThing();
+	PointedThing() {};
 	std::string dump() const;
 	void serialize(std::ostream &os) const;
 	void deSerialize(std::istream &is);
diff --git a/src/util/serialize.cpp b/src/util/serialize.cpp
index 61d369bc4..75843cb1b 100644
--- a/src/util/serialize.cpp
+++ b/src/util/serialize.cpp
@@ -422,7 +422,7 @@ bool deSerializeStringToStruct(std::string valstr,
 
 	char *fmtpos, *fmt = &format[0];
 	while ((f = strtok_r(fmt, ",", &fmtpos)) && s) {
-		fmt = NULL;
+		fmt = nullptr;
 
 		bool is_unsigned = false;
 		int width = 0;
@@ -510,7 +510,7 @@ bool deSerializeStringToStruct(std::string valstr,
 				bufpos += sizeof(std::string *);
 				strs_alloced.push_back(str);
 
-				s = *snext ? snext + 1 : NULL;
+				s = *snext ? snext + 1 : nullptr;
 				break;
 			case 'v':
 				while (*s == ' ' || *s == '\t')
@@ -582,7 +582,7 @@ bool serializeStructToString(std::string *out,
 	char *bufpos = (char *) value;
 	char *fmtpos, *fmt = &format[0];
 	while ((f = strtok_r(fmt, ",", &fmtpos))) {
-		fmt = NULL;
+		fmt = nullptr;
 		bool is_unsigned = false;
 		int width = 0;
 		char valtype = *f;
diff --git a/src/util/serialize.h b/src/util/serialize.h
index e22434191..f43480557 100644
--- a/src/util/serialize.h
+++ b/src/util/serialize.h
@@ -454,8 +454,7 @@ class BufReader {
 public:
 	BufReader(const u8 *data_, size_t size_) :
 		data(data_),
-		size(size_),
-		pos(0)
+		size(size_)
 	{
 	}
 
@@ -515,7 +514,7 @@ public:
 
 	const u8 *data;
 	size_t size;
-	size_t pos;
+	size_t pos = 0;
 };
 
 #undef MAKE_BUFREADER_GET_FXN
diff --git a/src/util/sha1.cpp b/src/util/sha1.cpp
index 6ed7385d5..c04b6c0c0 100644
--- a/src/util/sha1.cpp
+++ b/src/util/sha1.cpp
@@ -66,15 +66,6 @@ SHA1::SHA1()
 {
 	// make sure that the data type is the right size
 	assert( sizeof( Uint32 ) * 5 == 20 );
-	
-	// initialize
-	H0 = 0x67452301;
-	H1 = 0xefcdab89;
-	H2 = 0x98badcfe;
-	H3 = 0x10325476;
-	H4 = 0xc3d2e1f0;
-	unprocessedBytes = 0;
-	size = 0;
 }
 
 // Destructor ********************************************************
diff --git a/src/util/sha1.h b/src/util/sha1.h
index 0ac08c67b..a55f94f44 100644
--- a/src/util/sha1.h
+++ b/src/util/sha1.h
@@ -31,10 +31,14 @@ class SHA1
 {
 private:
 	// fields
-	Uint32 H0, H1, H2, H3, H4;
+	Uint32 H0 = 0x67452301;
+	Uint32 H1 = 0xefcdab89;
+	Uint32 H2 = 0x98badcfe;
+	Uint32 H3 = 0x10325476;
+	Uint32 H4 = 0xc3d2e1f0;
 	unsigned char bytes[64];
-	int unprocessedBytes;
-	Uint32 size;
+	int unprocessedBytes = 0;
+	Uint32 size = 0;
 	void process();
 
 public:
diff --git a/src/util/timetaker.cpp b/src/util/timetaker.cpp
index ac686c3a3..6079e5cca 100644
--- a/src/util/timetaker.cpp
+++ b/src/util/timetaker.cpp
@@ -27,7 +27,6 @@ TimeTaker::TimeTaker(const std::string &name, u64 *result, TimePrecision prec)
 {
 	m_name = name;
 	m_result = result;
-	m_running = true;
 	m_precision = prec;
 	m_time1 = porting::getTime(prec);
 }
@@ -36,7 +35,7 @@ u64 TimeTaker::stop(bool quiet)
 {
 	if (m_running) {
 		u64 dtime = porting::getTime(m_precision) - m_time1;
-		if (m_result != NULL) {
+		if (m_result != nullptr) {
 			(*m_result) += dtime;
 		} else {
 			if (!quiet) {
diff --git a/src/util/timetaker.h b/src/util/timetaker.h
index c10f4f535..34564ee4b 100644
--- a/src/util/timetaker.h
+++ b/src/util/timetaker.h
@@ -30,7 +30,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 class TimeTaker
 {
 public:
-	TimeTaker(const std::string &name, u64 *result=NULL,
+	TimeTaker(const std::string &name, u64 *result=nullptr,
 		TimePrecision prec=PRECISION_MILLI);
 
 	~TimeTaker()
@@ -45,9 +45,9 @@ public:
 private:
 	std::string m_name;
 	u64 m_time1;
-	bool m_running;
+	bool m_running = true;
 	TimePrecision m_precision;
-	u64 *m_result;
+	u64 *m_result = nullptr;
 };
 
 #endif