Use C99 instead of hard-coded indices

src/wl_window.c

@@ -1125,16 +1125,17 @@ static void handleEvents(double* timeout)
 #endif
 
     GLFWbool event = GLFW_FALSE;
-    struct pollfd fds[4] =
+    enum { DISPLAY_FD, KEYREPEAT_FD, CURSOR_FD, LIBDECOR_FD };
+    struct pollfd fds[] =
     {
-        { wl_display_get_fd(_glfw.wl.display), POLLIN },
-        { _glfw.wl.keyRepeatTimerfd, POLLIN },
-        { _glfw.wl.cursorTimerfd, POLLIN },
-        { -1, POLLIN }
+        [DISPLAY_FD] = { wl_display_get_fd(_glfw.wl.display), POLLIN },
+        [KEYREPEAT_FD] = { _glfw.wl.keyRepeatTimerfd, POLLIN },
+        [CURSOR_FD] = { _glfw.wl.cursorTimerfd, POLLIN },
+        [LIBDECOR_FD] = { -1, POLLIN }
     };
 
     if (_glfw.wl.libdecor.context)
-        fds[3].fd = libdecor_get_fd(_glfw.wl.libdecor.context);
+        fds[LIBDECOR_FD].fd = libdecor_get_fd(_glfw.wl.libdecor.context);
 
     while (!event)
     {
@@ -1166,7 +1167,7 @@ static void handleEvents(double* timeout)
             return;
         }
 
-        if (fds[0].revents & POLLIN)
+        if (fds[DISPLAY_FD].revents & POLLIN)
         {
             wl_display_read_events(_glfw.wl.display);
             if (wl_display_dispatch_pending(_glfw.wl.display) > 0)
@@ -1175,7 +1176,7 @@ static void handleEvents(double* timeout)
         else
             wl_display_cancel_read(_glfw.wl.display);
 
-        if (fds[1].revents & POLLIN)
+        if (fds[KEYREPEAT_FD].revents & POLLIN)
         {
             uint64_t repeats;
 
@@ -1195,7 +1196,7 @@ static void handleEvents(double* timeout)
             }
         }
 
-        if (fds[2].revents & POLLIN)
+        if (fds[CURSOR_FD].revents & POLLIN)
         {
             uint64_t repeats;
 
@@ -1203,7 +1204,7 @@ static void handleEvents(double* timeout)
                 incrementCursorImage(_glfw.wl.pointerFocus);
         }
 
-        if (fds[3].revents & POLLIN)
+        if (fds[LIBDECOR_FD].revents & POLLIN)
         {
             if (libdecor_dispatch(_glfw.wl.libdecor.context, 0) > 0)
                 event = GLFW_TRUE;

src/x11_window.c

@@ -79,24 +79,25 @@ static GLFWbool waitForX11Event(double* timeout)
 //
 static GLFWbool waitForAnyEvent(double* timeout)
 {
-    nfds_t count = 2;
-    struct pollfd fds[3] =
+    enum { XLIB_FD, PIPE_FD, INOTIFY_FD };
+    struct pollfd fds[] =
     {
-        { ConnectionNumber(_glfw.x11.display), POLLIN },
-        { _glfw.x11.emptyEventPipe[0], POLLIN }
+        [XLIB_FD] = { ConnectionNumber(_glfw.x11.display), POLLIN },
+        [PIPE_FD] = { _glfw.x11.emptyEventPipe[0], POLLIN },
+        [INOTIFY_FD] = { -1, POLLIN }
     };
 
 #if defined(GLFW_BUILD_LINUX_JOYSTICK)
     if (_glfw.joysticksInitialized)
-        fds[count++] = (struct pollfd) { _glfw.linjs.inotify, POLLIN };
+        fds[INOTIFY_FD].fd = _glfw.linjs.inotify;
 #endif
 
     while (!XPending(_glfw.x11.display))
     {
-        if (!_glfwPollPOSIX(fds, count, timeout))
+        if (!_glfwPollPOSIX(fds, sizeof(fds) / sizeof(fds[0]), timeout))
             return GLFW_FALSE;
 
-        for (int i = 1; i < count; i++)
+        for (int i = 1; i < sizeof(fds) / sizeof(fds[0]); i++)
         {
             if (fds[i].revents & POLLIN)
                 return GLFW_TRUE;