Make struct init symbols zero

source/glfw3/api.d

@@ -1586,7 +1586,7 @@ struct GLFWgamepadstate {
     /** The states of each [gamepad axis](@ref gamepad_axes), in the range -1.0
      *  to 1.0 inclusive.
      */
-    float[6] axes;
+    float[6] axes = 0.0;
 }
 
 

source/glfw3/internal.d

@@ -133,7 +133,7 @@ enum VkResult {
 struct VkAllocationCallbacks;
 
 struct VkExtensionProperties{
-    char[256] extensionName;
+    char[256] extensionName = '\0';
     uint specVersion;
 }
 
@@ -196,7 +196,7 @@ struct _GLFWerror
 {
     _GLFWerror* next;
     int code;
-    char[_GLFW_MESSAGE_SIZE] description;
+    char[_GLFW_MESSAGE_SIZE] description = '\0';
 }
 
 // Initialization configuration
@@ -356,7 +356,8 @@ struct _GLFWwindow
     char[GLFW_MOUSE_BUTTON_LAST + 1] mouseButtons = 0;
     char[GLFW_KEY_LAST + 1] keys = 0;
     // Virtual cursor position when cursor is disabled
-    double virtualCursorPosX;double virtualCursorPosY;
+    double virtualCursorPosX = 0.0;
+    double virtualCursorPosY = 0.0;
     GLFWbool rawMouseMotion;
 
     _GLFWcontext context;
@@ -475,6 +476,9 @@ struct _GLFWmutex
     mixin _GLFW_PLATFORM_MUTEX_STATE;
 }
 
+// Don't want to emit 137Kb init symbol
+static assert(__traits(isZeroInit, _GLFWlibrary), _GLFWlibrary.init);
+
 // Library global data
 //
 struct _GLFWlibrary

source/glfw3/win32_platform.d

@@ -220,7 +220,7 @@ extern(Windows) {
 alias VkFlags VkWin32SurfaceCreateFlagsKHR;
 
 struct VkWin32SurfaceCreateInfoKHR {
-    VkStructureType sType;
+    VkStructureType sType = void;
     const(void)* pNext;
     VkWin32SurfaceCreateFlagsKHR flags;
     HINSTANCE hinstance;

source/glfw3/x11_header.d

@@ -470,8 +470,8 @@ struct _XkbNewKeyboardNotify {
     int old_min_key_code;
     int old_max_key_code;
     uint changed;
-    char req_major;
-    char req_minor;
+    char req_major = 0;
+    char req_minor = 0;
 }
 alias _XkbNewKeyboardNotify XkbNewKeyboardNotifyEvent;
 struct _XkbMapNotifyEvent {
@@ -527,9 +527,9 @@ struct _XkbStateNotifyEvent {
     ubyte compat_lookup_mods;
     int ptr_buttons;
     KeyCode keycode;
-    char event_type;
-    char req_major;
-    char req_minor;
+    char event_type = 0;
+    char req_major = 0;
+    char req_minor = 0;
 }
 alias _XkbStateNotifyEvent XkbStateNotifyEvent;
 struct _XkbControlsNotify {
@@ -545,9 +545,9 @@ struct _XkbControlsNotify {
     uint enabled_ctrl_changes;
     int num_groups;
     KeyCode keycode;
-    char event_type;
-    char req_major;
-    char req_minor;
+    char event_type = 0;
+    char req_major = 0;
+    char req_minor = 0;
 }
 alias _XkbControlsNotify XkbControlsNotifyEvent;
 struct _XkbIndicatorNotify {
@@ -629,7 +629,7 @@ struct _XkbActionMessage {
     Bool key_event_follows;
     int group;
     uint mods;
-    char[XkbActionMessageLength + 1] message;
+    char[XkbActionMessageLength + 1] message = '\0';
 }
 alias _XkbActionMessage XkbActionMessageEvent;
 struct _XkbAccessXNotify {
@@ -979,7 +979,7 @@ struct XGCValues {
     int clip_y_origin;
     Pixmap clip_mask;
     int dash_offset;
-    char dashes;
+    char dashes = 0;
 }
 alias _XGC* GC;
 struct Visual {
@@ -1144,7 +1144,7 @@ struct XKeyboardState {
     uint bell_pitch, bell_duration;
     c_ulong led_mask;
     int global_auto_repeat;
-    char[32] auto_repeats;
+    char[32] auto_repeats = '\0';
 }
 struct XTimeCoord {
     Time time;
@@ -1204,7 +1204,7 @@ struct XMotionEvent {
     int x, y;
     int x_root, y_root;
     uint state;
-    char is_hint;
+    char is_hint = 0;
     Bool same_screen;
 }
 alias XMotionEvent XPointerMovedEvent;
@@ -1244,7 +1244,7 @@ struct XKeymapEvent {
     Bool send_event;
     Display* display;
     Window window;
-    char[32] key_vector;
+    char[32] key_vector = '\0';
 }
 struct XExposeEvent {
     int type;
@@ -1465,7 +1465,7 @@ struct XClientMessageEvent {
     Atom message_type;
     int format;
     union _data {
-        char[20] b;
+        char[20] b = '\0';
         short[10] s;
         c_long[5] l;
     }
@@ -4068,10 +4068,10 @@ struct XIDeviceEvent {
     Window root;
     Window event;
     Window child;
-    double root_x;
-    double root_y;
-    double event_x;
-    double event_y;
+    double root_x = 0.0;
+    double root_y = 0.0;
+    double event_x = 0.0;
+    double event_y = 0.0;
     int flags;
     XIButtonState buttons;
     XIValuatorState valuators;
@@ -4107,10 +4107,10 @@ struct XIEnterEvent {
     Window root;
     Window event;
     Window child;
-    double root_x;
-    double root_y;
-    double event_x;
-    double event_y;
+    double root_x = 0;
+    double root_y = 0;
+    double event_x = 0;
+    double event_y = 0;
     int mode;
     Bool focus;
     Bool same_screen;

source/glfw3/x11_platform.d

@@ -143,15 +143,15 @@ alias VkFlags VkXlibSurfaceCreateFlagsKHR;
 alias VkFlags VkXcbSurfaceCreateFlagsKHR;
 
 struct VkXlibSurfaceCreateInfoKHR {
-    VkStructureType sType;
+    VkStructureType sType = void;
     const(void)* pNext;
     VkXlibSurfaceCreateFlagsKHR flags;
     Display* dpy;
     Window window;
 }
 
 struct VkXcbSurfaceCreateInfoKHR {
-    VkStructureType sType;
+    VkStructureType sType = void;
     const(void)* pNext;
     VkXcbSurfaceCreateFlagsKHR flags;
     xcb_connection_t* connection;
@@ -205,13 +205,17 @@ struct _GLFWwindowX11 {
     GLFWbool transparent;
 
     // Cached position and size used to filter out duplicate events
-    int width;int height;
-    int xpos;int ypos;
+    int width;
+    int height;
+    int xpos;
+    int ypos;
 
     // The last received cursor position, regardless of source
-    int lastCursorPosX;int lastCursorPosY;
+    int lastCursorPosX;
+    int lastCursorPosY;
     // The last position the cursor was warped to by GLFW
-    int warpCursorPosX;int warpCursorPosY;
+    int warpCursorPosX;
+    int warpCursorPosY;
 
     // The time of the last KeyPress event
     Time lastKeyTime;
@@ -226,7 +230,8 @@ struct _GLFWlibraryX11 {
     Window root;
 
     // System content scale
-    float contentScaleX;float contentScaleY;
+    float contentScaleX = 0.0;
+    float contentScaleY = 0.0;
     // Helper window for IPC
     Window helperWindowHandle;
     // Invisible cursor for hidden cursor mode
@@ -242,13 +247,14 @@ struct _GLFWlibraryX11 {
     // Clipboard string (while the selection is owned)
     char* clipboardString;
     // Key name string
-    char[5][GLFW_KEY_LAST + 1] keynames;
+    char[5][GLFW_KEY_LAST + 1] keynames = '\0';
     // X11 keycode to GLFW key LUT
     int[256] keycodes;
     // GLFW key to X11 keycode LUT
     int[GLFW_KEY_LAST + 1] scancodes;
     // Where to place the cursor when re-enabled
-    double restoreCursorPosX;double restoreCursorPosY;
+    double restoreCursorPosX = 0.0;
+    double restoreCursorPosY = 0.0;
     // The window whose disabled cursor mode is active
     _GLFWwindow* disabledCursorWindow;