Fix uninitialized members

24 files changed, 144 insertions, 154 deletions

diff --git a/.clang-tidy b/.clang-tidy
index c9a4cb1b..e535a880 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -34,7 +34,6 @@ Checks: >
   -cppcoreguidelines-pro-bounds-pointer-arithmetic,
   -cppcoreguidelines-pro-type-const-cast,
   -cppcoreguidelines-pro-type-cstyle-cast,
-  -cppcoreguidelines-pro-type-member-init,
   -cppcoreguidelines-pro-type-reinterpret-cast,
   -cppcoreguidelines-pro-type-static-cast-downcast,
   -cppcoreguidelines-pro-type-union-access,
@@ -48,7 +47,6 @@ Checks: >
   -google-runtime-int,
   -google-runtime-references,
   -hicpp-explicit-conversions,
-  -hicpp-member-init,
   -hicpp-multiway-paths-covered,
   -hicpp-no-array-decay,
   -hicpp-no-malloc,
diff --git a/ingen/Atom.hpp b/ingen/Atom.hpp
index c4020b91..e92ab194 100644
--- a/ingen/Atom.hpp
+++ b/ingen/Atom.hpp
@@ -43,17 +43,18 @@ namespace ingen {
 */
 class INGEN_API Atom {
 public:
-	Atom() noexcept  { _atom.size = 0; _atom.type = 0; _body.ptr = nullptr; }
+	Atom() noexcept : _atom{0, 0}, _body{} {}
+
 	~Atom() { dealloc(); }
 
 	/** Construct a raw atom.
 	 *
 	 * Typically this is not used directly, use Forge methods to make atoms.
 	 */
-	Atom(uint32_t size, LV2_URID type, const void* body) {
-		_atom.size = size;
-		_atom.type = type;
-		_body.ptr  = nullptr;
+	Atom(uint32_t size, LV2_URID type, const void* body)
+	    : _atom{size, type}
+		, _body{}
+	{
 		if (is_reference()) {
 			_body.ptr = static_cast<LV2_Atom*>(malloc(sizeof(LV2_Atom) + size));
 			memcpy(_body.ptr, &_atom, sizeof(LV2_Atom));
@@ -64,7 +65,8 @@ public:
 	}
 
 	Atom(const Atom& copy)
-		: _atom(copy._atom)
+		: _atom{copy._atom}
+		, _body{}
 	{
 		if (is_reference()) {
 			_body.ptr =
diff --git a/ingen/AtomForge.hpp b/ingen/AtomForge.hpp
index 10517894..b1cec69d 100644
--- a/ingen/AtomForge.hpp
+++ b/ingen/AtomForge.hpp
@@ -36,7 +36,8 @@ class AtomForge : public LV2_Atom_Forge
 {
 public:
 	explicit AtomForge(LV2_URID_Map& map)
-	    : _size{0}
+		: LV2_Atom_Forge{}
+		, _size{0}
 	    , _capacity{8 * sizeof(LV2_Atom)}
 	    , _sratom{sratom_new(&map)}
 	    , _buf{static_cast<LV2_Atom*>(calloc(8, sizeof(LV2_Atom)))}
diff --git a/ingen/Clock.hpp b/ingen/Clock.hpp
index 5debb5e4..27d8443d 100644
--- a/ingen/Clock.hpp
+++ b/ingen/Clock.hpp
@@ -46,7 +46,7 @@ private:
 #else
 
 	inline uint64_t now_microseconds() const {
-		struct timespec time;
+		struct timespec time{};
 		clock_gettime(_clock, &time);
 		return static_cast<uint64_t>(time.tv_sec) * 1e6 +
 		       static_cast<uint64_t>(time.tv_nsec) / 1e3;
diff --git a/ingen/URIMap.hpp b/ingen/URIMap.hpp
index db10241f..5b211612 100644
--- a/ingen/URIMap.hpp
+++ b/ingen/URIMap.hpp
@@ -49,10 +49,7 @@ public:
 
 	class Feature : public LV2Features::Feature {
 	public:
-		Feature(const char* URI, void* data) {
-			_feature.URI  = URI;
-			_feature.data = data;
-		}
+		Feature(const char* URI, void* data) : _feature{URI, data} {}
 
 		const char* uri() const override { return _feature.URI; }
 
diff --git a/ingen/filesystem.hpp b/ingen/filesystem.hpp
index 3b2bc302..44b9148e 100644
--- a/ingen/filesystem.hpp
+++ b/ingen/filesystem.hpp
@@ -49,7 +49,7 @@ inline bool exists(const FilePath& path)
 
 inline bool is_directory(const FilePath& path)
 {
-	struct stat info;
+	struct stat info{};
 	stat(path.c_str(), &info);
 	return S_ISDIR(info.st_mode);
 }
diff --git a/src/gui/App.cpp b/src/gui/App.cpp
index dc8f605a..e62a35e2 100644
--- a/src/gui/App.cpp
+++ b/src/gui/App.cpp
@@ -73,19 +73,18 @@ class Port;
 Gtk::Main* App::_main = nullptr;
 
 App::App(ingen::World& world)
-	: _style(new Style(*this))
-	, _about_dialog(nullptr)
-	, _window_factory(new WindowFactory(*this))
-	, _world(world)
-	, _sample_rate(48000)
-	, _block_length(1024)
-	, _n_threads(1)
-	, _mean_run_load(0.0f)
-	, _min_run_load(0.0f)
-	, _max_run_load(0.0f)
-	, _enable_signal(true)
-	, _requested_plugins(false)
-	, _is_plugin(false)
+    : _style(new Style(*this))
+    , _window_factory(new WindowFactory(*this))
+    , _world(world)
+    , _sample_rate(48000)
+    , _block_length(1024)
+    , _n_threads(1)
+    , _mean_run_load(0.0f)
+    , _min_run_load(0.0f)
+    , _max_run_load(0.0f)
+    , _enable_signal(true)
+    , _requested_plugins(false)
+    , _is_plugin(false)
 {
 	_world.conf().load_default("ingen", "gui.ttl");
 
diff --git a/src/gui/App.hpp b/src/gui/App.hpp
index 3149f169..74e880d2 100644
--- a/src/gui/App.hpp
+++ b/src/gui/App.hpp
@@ -166,11 +166,11 @@ protected:
 
 	Style* _style;
 
-	ConnectWindow*    _connect_window;
-	MessagesWindow*   _messages_window;
-	GraphTreeWindow*  _graph_tree_window;
-	Gtk::AboutDialog* _about_dialog;
-	WindowFactory*    _window_factory;
+	ConnectWindow*    _connect_window = nullptr;
+	MessagesWindow*   _messages_window = nullptr;
+	GraphTreeWindow*  _graph_tree_window = nullptr;
+	Gtk::AboutDialog* _about_dialog = nullptr;
+	WindowFactory*    _window_factory = nullptr;
 
 	ingen::World& _world;
 
diff --git a/src/gui/ConnectWindow.cpp b/src/gui/ConnectWindow.cpp
index fc9e7cab..65cb1c7d 100644
--- a/src/gui/ConnectWindow.cpp
+++ b/src/gui/ConnectWindow.cpp
@@ -463,7 +463,7 @@ ConnectWindow::gtk_callback()
 	}
 
 	// Timing stuff for repeated attach attempts
-	timeval now;
+	timeval now = {};
 	gettimeofday(&now, nullptr);
 	static const timeval start    = now;
 	static timeval       last     = now;
diff --git a/src/gui/GraphBox.hpp b/src/gui/GraphBox.hpp
index e1f602b7..3a1049cd 100644
--- a/src/gui/GraphBox.hpp
+++ b/src/gui/GraphBox.hpp
@@ -153,50 +153,50 @@ private:
 	sigc::connection removed_port_connection;
 	sigc::connection edit_mode_connection;
 
-	Gtk::MenuItem*      _menu_import;
-	Gtk::MenuItem*      _menu_save;
-	Gtk::MenuItem*      _menu_save_as;
-	Gtk::MenuItem*      _menu_export_image;
-	Gtk::MenuItem*      _menu_redo;
-	Gtk::MenuItem*      _menu_undo;
-	Gtk::MenuItem*      _menu_cut;
-	Gtk::MenuItem*      _menu_copy;
-	Gtk::MenuItem*      _menu_paste;
-	Gtk::MenuItem*      _menu_delete;
-	Gtk::MenuItem*      _menu_select_all;
-	Gtk::MenuItem*      _menu_close;
-	Gtk::MenuItem*      _menu_quit;
-	Gtk::CheckMenuItem* _menu_animate_signals;
-	Gtk::CheckMenuItem* _menu_sprung_layout;
-	Gtk::CheckMenuItem* _menu_human_names;
-	Gtk::CheckMenuItem* _menu_show_port_names;
-	Gtk::CheckMenuItem* _menu_show_doc_pane;
-	Gtk::CheckMenuItem* _menu_show_status_bar;
-	Gtk::MenuItem*      _menu_zoom_in;
-	Gtk::MenuItem*      _menu_zoom_out;
-	Gtk::MenuItem*      _menu_zoom_normal;
-	Gtk::MenuItem*      _menu_zoom_full;
-	Gtk::MenuItem*      _menu_increase_font_size;
-	Gtk::MenuItem*      _menu_decrease_font_size;
-	Gtk::MenuItem*      _menu_normal_font_size;
-	Gtk::MenuItem*      _menu_parent;
-	Gtk::MenuItem*      _menu_refresh;
-	Gtk::MenuItem*      _menu_fullscreen;
-	Gtk::MenuItem*      _menu_arrange;
-	Gtk::MenuItem*      _menu_view_engine_window;
-	Gtk::MenuItem*      _menu_view_control_window;
-	Gtk::MenuItem*      _menu_view_graph_properties;
-	Gtk::MenuItem*      _menu_view_messages_window;
-	Gtk::MenuItem*      _menu_view_graph_tree_window;
-	Gtk::MenuItem*      _menu_help_about;
-
-	Gtk::Alignment*     _alignment;
-	BreadCrumbs*        _breadcrumbs;
-	Gtk::Statusbar*     _status_bar;
-	Gtk::Label*         _status_label;
-
-	Gtk::HPaned*         _doc_paned;
-	Gtk::ScrolledWindow* _doc_scrolledwindow;
+	Gtk::MenuItem*      _menu_import                 = nullptr;
+	Gtk::MenuItem*      _menu_save                   = nullptr;
+	Gtk::MenuItem*      _menu_save_as                = nullptr;
+	Gtk::MenuItem*      _menu_export_image           = nullptr;
+	Gtk::MenuItem*      _menu_redo                   = nullptr;
+	Gtk::MenuItem*      _menu_undo                   = nullptr;
+	Gtk::MenuItem*      _menu_cut                    = nullptr;
+	Gtk::MenuItem*      _menu_copy                   = nullptr;
+	Gtk::MenuItem*      _menu_paste                  = nullptr;
+	Gtk::MenuItem*      _menu_delete                 = nullptr;
+	Gtk::MenuItem*      _menu_select_all             = nullptr;
+	Gtk::MenuItem*      _menu_close                  = nullptr;
+	Gtk::MenuItem*      _menu_quit                   = nullptr;
+	Gtk::CheckMenuItem* _menu_animate_signals        = nullptr;
+	Gtk::CheckMenuItem* _menu_sprung_layout          = nullptr;
+	Gtk::CheckMenuItem* _menu_human_names            = nullptr;
+	Gtk::CheckMenuItem* _menu_show_port_names        = nullptr;
+	Gtk::CheckMenuItem* _menu_show_doc_pane          = nullptr;
+	Gtk::CheckMenuItem* _menu_show_status_bar        = nullptr;
+	Gtk::MenuItem*      _menu_zoom_in                = nullptr;
+	Gtk::MenuItem*      _menu_zoom_out               = nullptr;
+	Gtk::MenuItem*      _menu_zoom_normal            = nullptr;
+	Gtk::MenuItem*      _menu_zoom_full              = nullptr;
+	Gtk::MenuItem*      _menu_increase_font_size     = nullptr;
+	Gtk::MenuItem*      _menu_decrease_font_size     = nullptr;
+	Gtk::MenuItem*      _menu_normal_font_size       = nullptr;
+	Gtk::MenuItem*      _menu_parent                 = nullptr;
+	Gtk::MenuItem*      _menu_refresh                = nullptr;
+	Gtk::MenuItem*      _menu_fullscreen             = nullptr;
+	Gtk::MenuItem*      _menu_arrange                = nullptr;
+	Gtk::MenuItem*      _menu_view_engine_window     = nullptr;
+	Gtk::MenuItem*      _menu_view_control_window    = nullptr;
+	Gtk::MenuItem*      _menu_view_graph_properties  = nullptr;
+	Gtk::MenuItem*      _menu_view_messages_window   = nullptr;
+	Gtk::MenuItem*      _menu_view_graph_tree_window = nullptr;
+	Gtk::MenuItem*      _menu_help_about             = nullptr;
+
+	Gtk::Alignment* _alignment    = nullptr;
+	BreadCrumbs*    _breadcrumbs  = nullptr;
+	Gtk::Statusbar* _status_bar   = nullptr;
+	Gtk::Label*     _status_label = nullptr;
+
+	Gtk::HPaned*         _doc_paned          = nullptr;
+	Gtk::ScrolledWindow* _doc_scrolledwindow = nullptr;
 
 	sigc::connection _entered_connection;
 	sigc::connection _left_connection;
diff --git a/src/gui/GraphCanvas.cpp b/src/gui/GraphCanvas.cpp
index 969c3849..18fd1a39 100644
--- a/src/gui/GraphCanvas.cpp
+++ b/src/gui/GraphCanvas.cpp
@@ -84,12 +84,6 @@ GraphCanvas::GraphCanvas(App&                   app,
 	, _menu_x(0)
 	, _menu_y(0)
 	, _paste_count(0)
-	, _menu(nullptr)
-	, _internal_menu(nullptr)
-	, _plugin_menu(nullptr)
-	, _human_names(true)
-	, _show_port_names(true)
-	, _menu_dirty(false)
 {
 	Glib::RefPtr<Gtk::Builder> xml = WidgetFactory::create("canvas_menu");
 	xml->get_widget("canvas_menu", _menu);
diff --git a/src/gui/GraphCanvas.hpp b/src/gui/GraphCanvas.hpp
index 5b379ec7..ed43b970 100644
--- a/src/gui/GraphCanvas.hpp
+++ b/src/gui/GraphCanvas.hpp
@@ -130,26 +130,26 @@ private:
 	// Track pasted objects so they can be selected when they arrive
 	std::set<Raul::Path> _pastees;
 
-	Gtk::Menu*          _menu;
-	Gtk::Menu*          _internal_menu;
-	PluginMenu*         _plugin_menu;
-	Gtk::MenuItem*      _menu_add_audio_input;
-	Gtk::MenuItem*      _menu_add_audio_output;
-	Gtk::MenuItem*      _menu_add_control_input;
-	Gtk::MenuItem*      _menu_add_control_output;
-	Gtk::MenuItem*      _menu_add_cv_input;
-	Gtk::MenuItem*      _menu_add_cv_output;
-	Gtk::MenuItem*      _menu_add_event_input;
-	Gtk::MenuItem*      _menu_add_event_output;
-	Gtk::MenuItem*      _menu_load_plugin;
-	Gtk::MenuItem*      _menu_load_graph;
-	Gtk::MenuItem*      _menu_new_graph;
-	Gtk::MenuItem*      _menu_properties;
-	Gtk::CheckMenuItem* _menu_edit;
-
-	bool _human_names;
-	bool _show_port_names;
-	bool _menu_dirty;
+	Gtk::Menu*          _menu                    = nullptr;
+	Gtk::Menu*          _internal_menu           = nullptr;
+	PluginMenu*         _plugin_menu             = nullptr;
+	Gtk::MenuItem*      _menu_add_audio_input    = nullptr;
+	Gtk::MenuItem*      _menu_add_audio_output   = nullptr;
+	Gtk::MenuItem*      _menu_add_control_input  = nullptr;
+	Gtk::MenuItem*      _menu_add_control_output = nullptr;
+	Gtk::MenuItem*      _menu_add_cv_input       = nullptr;
+	Gtk::MenuItem*      _menu_add_cv_output      = nullptr;
+	Gtk::MenuItem*      _menu_add_event_input    = nullptr;
+	Gtk::MenuItem*      _menu_add_event_output   = nullptr;
+	Gtk::MenuItem*      _menu_load_plugin        = nullptr;
+	Gtk::MenuItem*      _menu_load_graph         = nullptr;
+	Gtk::MenuItem*      _menu_new_graph          = nullptr;
+	Gtk::MenuItem*      _menu_properties         = nullptr;
+	Gtk::CheckMenuItem* _menu_edit               = nullptr;
+
+	bool _human_names = true;
+	bool _show_port_names = true;
+	bool _menu_dirty = false;
 };
 
 } // namespace gui
diff --git a/src/gui/GraphTreeWindow.cpp b/src/gui/GraphTreeWindow.cpp
index f3d77c76..2179c964 100644
--- a/src/gui/GraphTreeWindow.cpp
+++ b/src/gui/GraphTreeWindow.cpp
@@ -33,6 +33,7 @@ namespace gui {
 GraphTreeWindow::GraphTreeWindow(BaseObjectType*                   cobject,
                                  const Glib::RefPtr<Gtk::Builder>& xml)
 	: Window(cobject)
+	, _graphs_treeview(nullptr)
 	, _app(nullptr)
 	, _enable_signal(true)
 {
diff --git a/src/gui/GraphView.cpp b/src/gui/GraphView.cpp
index e25fa1ba..a4bc1400 100644
--- a/src/gui/GraphView.cpp
+++ b/src/gui/GraphView.cpp
@@ -37,9 +37,6 @@ namespace gui {
 GraphView::GraphView(BaseObjectType*                   cobject,
                      const Glib::RefPtr<Gtk::Builder>& xml)
 	: Gtk::Box(cobject)
-	, _app(nullptr)
-	, _breadcrumb_container(nullptr)
-	, _enable_signal(true)
 {
 	property_visible() = false;
 
diff --git a/src/gui/GraphView.hpp b/src/gui/GraphView.hpp
index 457a5f76..d10700eb 100644
--- a/src/gui/GraphView.hpp
+++ b/src/gui/GraphView.hpp
@@ -81,18 +81,18 @@ private:
 
 	void property_changed(const URI& predicate, const Atom& value);
 
-	App* _app;
+	App* _app = nullptr;
 
 	SPtr<const client::GraphModel> _graph;
 	SPtr<GraphCanvas>              _canvas;
 
-	Gtk::ScrolledWindow*   _canvas_scrolledwindow;
-	Gtk::Toolbar*          _toolbar;
-	Gtk::ToggleToolButton* _process_but;
-	Gtk::SpinButton*       _poly_spin;
-	Gtk::ToolItem*         _breadcrumb_container;
+	Gtk::ScrolledWindow*   _canvas_scrolledwindow = nullptr;
+	Gtk::Toolbar*          _toolbar = nullptr;
+	Gtk::ToggleToolButton* _process_but = nullptr;
+	Gtk::SpinButton*       _poly_spin = nullptr;
+	Gtk::ToolItem*         _breadcrumb_container = nullptr;
 
-	bool _enable_signal;
+	bool _enable_signal = true;
 };
 
 } // namespace gui
diff --git a/src/gui/LoadGraphWindow.cpp b/src/gui/LoadGraphWindow.cpp
index cb1d4de9..d1b2cfd9 100644
--- a/src/gui/LoadGraphWindow.cpp
+++ b/src/gui/LoadGraphWindow.cpp
@@ -45,8 +45,6 @@ namespace gui {
 LoadGraphWindow::LoadGraphWindow(BaseObjectType*                   cobject,
                                  const Glib::RefPtr<Gtk::Builder>& xml)
 	: Gtk::FileChooserDialog(cobject)
-	, _app(nullptr)
-	, _merge_ports(false)
 {
 	xml->get_widget("load_graph_symbol_label", _symbol_label);
 	xml->get_widget("load_graph_symbol_entry", _symbol_entry);
diff --git a/src/gui/LoadGraphWindow.hpp b/src/gui/LoadGraphWindow.hpp
index a2217d83..03b96f72 100644
--- a/src/gui/LoadGraphWindow.hpp
+++ b/src/gui/LoadGraphWindow.hpp
@@ -70,25 +70,25 @@ private:
 	Raul::Symbol symbol_from_filename(const Glib::ustring& filename);
 	Raul::Symbol avoid_symbol_clash(const Raul::Symbol& symbol);
 
-	App* _app;
+	App* _app = nullptr;
 
 	Properties _initial_data;
 
 	SPtr<const client::GraphModel> _graph;
 
-	Gtk::Label*       _symbol_label;
-	Gtk::Entry*       _symbol_entry;
-	Gtk::Label*       _ports_label;
-	Gtk::RadioButton* _merge_ports_radio;
-	Gtk::RadioButton* _insert_ports_radio;
-	Gtk::RadioButton* _poly_voices_radio;
-	Gtk::RadioButton* _poly_from_file_radio;
-	Gtk::SpinButton*  _poly_spinbutton;
-	Gtk::Button*      _ok_button;
-	Gtk::Button*      _cancel_button;
-
-	bool _import;
-	bool _merge_ports;
+	Gtk::Label*       _symbol_label = nullptr;
+	Gtk::Entry*       _symbol_entry = nullptr;
+	Gtk::Label*       _ports_label = nullptr;
+	Gtk::RadioButton* _merge_ports_radio = nullptr;
+	Gtk::RadioButton* _insert_ports_radio = nullptr;
+	Gtk::RadioButton* _poly_voices_radio = nullptr;
+	Gtk::RadioButton* _poly_from_file_radio = nullptr;
+	Gtk::SpinButton*  _poly_spinbutton = nullptr;
+	Gtk::Button*      _ok_button = nullptr;
+	Gtk::Button*      _cancel_button = nullptr;
+
+	bool _import = false;
+	bool _merge_ports = false;
 };
 
 } // namespace gui
diff --git a/src/gui/LoadPluginWindow.cpp b/src/gui/LoadPluginWindow.cpp
index acc34842..737db840 100644
--- a/src/gui/LoadPluginWindow.cpp
+++ b/src/gui/LoadPluginWindow.cpp
@@ -41,9 +41,6 @@ namespace gui {
 LoadPluginWindow::LoadPluginWindow(BaseObjectType*                   cobject,
                                    const Glib::RefPtr<Gtk::Builder>& xml)
 	: Window(cobject)
-	, _name_offset(0)
-	, _has_shown(false)
-	, _refresh_list(true)
 {
 	xml->get_widget("load_plugin_plugins_treeview", _plugins_treeview);
 	xml->get_widget("load_plugin_polyphonic_checkbutton", _polyphonic_checkbutton);
diff --git a/src/gui/LoadPluginWindow.hpp b/src/gui/LoadPluginWindow.hpp
index 78c52eba..afbe110a 100644
--- a/src/gui/LoadPluginWindow.hpp
+++ b/src/gui/LoadPluginWindow.hpp
@@ -143,17 +143,17 @@ private:
 
 	Glib::RefPtr<Gtk::TreeSelection> _selection;
 
-	int _name_offset; // see comments for generate_plugin_name
-
-	bool              _has_shown;
-	bool              _refresh_list;
-	Gtk::TreeView*    _plugins_treeview;
-	Gtk::CheckButton* _polyphonic_checkbutton;
-	Gtk::Entry*       _name_entry;
-	Gtk::Button*      _close_button;
-	Gtk::Button*      _add_button;
-	Gtk::ComboBox*    _filter_combo;
-	Gtk::Entry*       _search_entry;
+	int _name_offset = 0; // see comments for generate_plugin_name
+
+	bool              _has_shown              = false;
+	bool              _refresh_list           = true;
+	Gtk::TreeView*    _plugins_treeview       = nullptr;
+	Gtk::CheckButton* _polyphonic_checkbutton = nullptr;
+	Gtk::Entry*       _name_entry             = nullptr;
+	Gtk::Button*      _close_button           = nullptr;
+	Gtk::Button*      _add_button             = nullptr;
+	Gtk::ComboBox*    _filter_combo           = nullptr;
+	Gtk::Entry*       _search_entry           = nullptr;
 };
 
 } // namespace gui
diff --git a/src/server/FrameTimer.hpp b/src/server/FrameTimer.hpp
index 344ed201..d4ab91f1 100644
--- a/src/server/FrameTimer.hpp
+++ b/src/server/FrameTimer.hpp
@@ -97,13 +97,13 @@ private:
 	const double b;
 	const double c;
 
-	uint64_t nper;
-	double   e2;
-	double   t0;
-	double   t1;
-	uint64_t n0;
-	uint64_t n1;
-	bool     initialized;
+	uint64_t nper        = 0u;
+	double   e2          = 0.0;
+	double   t0          = 0.0;
+	double   t1          = 0.0;
+	uint64_t n0          = 0u;
+	uint64_t n1          = 0u;
+	bool     initialized = false;
 };
 
 } // namespace server
diff --git a/src/server/JackDriver.cpp b/src/server/JackDriver.cpp
index d57b208a..852e23ae 100644
--- a/src/server/JackDriver.cpp
+++ b/src/server/JackDriver.cpp
@@ -61,6 +61,7 @@ namespace server {
 
 JackDriver::JackDriver(Engine& engine)
 	: _engine(engine)
+	, _forge()
 	, _sem(0)
 	, _flag(false)
 	, _client(nullptr)
@@ -68,6 +69,8 @@ JackDriver::JackDriver(Engine& engine)
 	, _seq_size(0)
 	, _sample_rate(0)
 	, _is_activated(false)
+	, _position()
+	, _transport_state()
 	, _old_bpm(120.0f)
 	, _old_frame(0)
 	, _old_rolling(false)
diff --git a/src/server/LV2Options.hpp b/src/server/LV2Options.hpp
index 38082b8d..33f5781b 100644
--- a/src/server/LV2Options.hpp
+++ b/src/server/LV2Options.hpp
@@ -60,9 +60,9 @@ public:
 
 private:
 	const URIs& _uris;
-	int32_t     _sample_rate;
-	int32_t     _block_length;
-	int32_t     _seq_size;
+	int32_t     _sample_rate  = 0;
+	int32_t     _block_length = 0;
+	int32_t     _seq_size     = 0;
 };
 
 } // namespace server
diff --git a/src/server/PortAudioDriver.cpp b/src/server/PortAudioDriver.cpp
index 8d4a4c63..91ed73f7 100644
--- a/src/server/PortAudioDriver.cpp
+++ b/src/server/PortAudioDriver.cpp
@@ -45,6 +45,8 @@ pa_error(const char* msg, PaError err)
 
 PortAudioDriver::PortAudioDriver(Engine& engine)
 	: _engine(engine)
+	, _inputParameters()
+	, _outputParameters()
 	, _sem(0)
 	, _stream(nullptr)
 	, _seq_size(4096)
diff --git a/src/server/ingen_lv2.cpp b/src/server/ingen_lv2.cpp
index 2bf44762..03bebe80 100644
--- a/src/server/ingen_lv2.cpp
+++ b/src/server/ingen_lv2.cpp
@@ -822,6 +822,7 @@ ingen_extension_data(const char* uri)
 
 LV2Graph::LV2Graph(Parser::ResourceRecord record)
 	: Parser::ResourceRecord(std::move(record))
+	, descriptor()
 {
 	descriptor.URI            = uri.c_str();
 	descriptor.instantiate    = ingen_instantiate;