diff --git a/script/generate_dispatch.py b/script/generate_dispatch.py
index aece4da..c959639 100644
--- a/script/generate_dispatch.py
+++ b/script/generate_dispatch.py
@@ -213,6 +213,31 @@ for command_name, command in commands.items():
         macro = '$body'
     commands[command_name]['macro_template'] = Template(macro)
 
+for command_name, command in commands.items():
+    pfn_decl_macro = ''
+    requirements_collection = commands[command_name]['requirements']
+    collection_count = len(requirements_collection)
+    if collection_count > 0:
+        pfn_decl_macro = '#if '
+        while collection_count > 0:
+            for requirements in requirements_collection:
+                requirements_count = len(requirements)
+                pfn_decl_macro += '('
+                for requirement in requirements:
+                    pfn_decl_macro += f'defined({requirement})'
+                    requirements_count -= 1
+                    if requirements_count > 0:
+                        pfn_decl_macro += ' && '
+                pfn_decl_macro += ')'
+                if collection_count > 0:
+                    collection_count -= 1
+                    if collection_count > 0:
+                        pfn_decl_macro += ' || '
+        pfn_decl_macro += f'\n$body#else\n    void * fp_{command_name}{{}};\n#endif\n'
+    else:
+        pfn_decl_macro = '$body'
+    commands[command_name]['pfn_decl_macro_template'] = Template(pfn_decl_macro)
+
 # License
 dispatch_license = '''/*
  * Copyright © 2021 Cody Goodson (contact@vibimanx.com)
@@ -339,8 +364,9 @@ def create_dispatch_table(dispatch_type):
         pfn_load_body = pfn_load_template.substitute(fp_name = fp_name, pfn_name = pfn_name, command_name = command_name)
 
         macro_template = params['macro_template']
+        pfn_decl_macro_template = params['pfn_decl_macro_template']
         proxy_section += macro_template.substitute(body=proxy_body)
-        fp_decl_section += macro_template.substitute(body=fp_decl_body)
+        fp_decl_section += pfn_decl_macro_template.substitute(body=fp_decl_body)
         pfn_load_section += macro_template.substitute(body=pfn_load_body)
 
     out += pfn_load_section
diff --git a/src/VkBootstrapDispatch.h b/src/VkBootstrapDispatch.h
index ad70350..77e5fb6 100644
--- a/src/VkBootstrapDispatch.h
+++ b/src/VkBootstrapDispatch.h
@@ -755,252 +755,418 @@ struct InstanceDispatchTable {
     PFN_vkGetPhysicalDeviceSparseImageFormatProperties fp_vkGetPhysicalDeviceSparseImageFormatProperties = nullptr;
 #if (defined(VK_KHR_android_surface))
     PFN_vkCreateAndroidSurfaceKHR fp_vkCreateAndroidSurfaceKHR = nullptr;
+#else
+    void * fp_vkCreateAndroidSurfaceKHR{};
 #endif
 #if (defined(VK_KHR_display))
     PFN_vkGetPhysicalDeviceDisplayPropertiesKHR fp_vkGetPhysicalDeviceDisplayPropertiesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceDisplayPropertiesKHR{};
 #endif
 #if (defined(VK_KHR_display))
     PFN_vkGetPhysicalDeviceDisplayPlanePropertiesKHR fp_vkGetPhysicalDeviceDisplayPlanePropertiesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceDisplayPlanePropertiesKHR{};
 #endif
 #if (defined(VK_KHR_display))
     PFN_vkGetDisplayPlaneSupportedDisplaysKHR fp_vkGetDisplayPlaneSupportedDisplaysKHR = nullptr;
+#else
+    void * fp_vkGetDisplayPlaneSupportedDisplaysKHR{};
 #endif
 #if (defined(VK_KHR_display))
     PFN_vkGetDisplayModePropertiesKHR fp_vkGetDisplayModePropertiesKHR = nullptr;
+#else
+    void * fp_vkGetDisplayModePropertiesKHR{};
 #endif
 #if (defined(VK_KHR_display))
     PFN_vkCreateDisplayModeKHR fp_vkCreateDisplayModeKHR = nullptr;
+#else
+    void * fp_vkCreateDisplayModeKHR{};
 #endif
 #if (defined(VK_KHR_display))
     PFN_vkGetDisplayPlaneCapabilitiesKHR fp_vkGetDisplayPlaneCapabilitiesKHR = nullptr;
+#else
+    void * fp_vkGetDisplayPlaneCapabilitiesKHR{};
 #endif
 #if (defined(VK_KHR_display))
     PFN_vkCreateDisplayPlaneSurfaceKHR fp_vkCreateDisplayPlaneSurfaceKHR = nullptr;
+#else
+    void * fp_vkCreateDisplayPlaneSurfaceKHR{};
 #endif
 #if (defined(VK_KHR_surface))
     PFN_vkDestroySurfaceKHR fp_vkDestroySurfaceKHR = nullptr;
+#else
+    void * fp_vkDestroySurfaceKHR{};
 #endif
 #if (defined(VK_KHR_surface))
     PFN_vkGetPhysicalDeviceSurfaceSupportKHR fp_vkGetPhysicalDeviceSurfaceSupportKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSurfaceSupportKHR{};
 #endif
 #if (defined(VK_KHR_surface))
     PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR fp_vkGetPhysicalDeviceSurfaceCapabilitiesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSurfaceCapabilitiesKHR{};
 #endif
 #if (defined(VK_KHR_surface))
     PFN_vkGetPhysicalDeviceSurfaceFormatsKHR fp_vkGetPhysicalDeviceSurfaceFormatsKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSurfaceFormatsKHR{};
 #endif
 #if (defined(VK_KHR_surface))
     PFN_vkGetPhysicalDeviceSurfacePresentModesKHR fp_vkGetPhysicalDeviceSurfacePresentModesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSurfacePresentModesKHR{};
 #endif
 #if (defined(VK_NN_vi_surface))
     PFN_vkCreateViSurfaceNN fp_vkCreateViSurfaceNN = nullptr;
+#else
+    void * fp_vkCreateViSurfaceNN{};
 #endif
 #if (defined(VK_KHR_wayland_surface))
     PFN_vkCreateWaylandSurfaceKHR fp_vkCreateWaylandSurfaceKHR = nullptr;
+#else
+    void * fp_vkCreateWaylandSurfaceKHR{};
 #endif
 #if (defined(VK_KHR_wayland_surface))
     PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR fp_vkGetPhysicalDeviceWaylandPresentationSupportKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceWaylandPresentationSupportKHR{};
 #endif
 #if (defined(VK_KHR_win32_surface))
     PFN_vkCreateWin32SurfaceKHR fp_vkCreateWin32SurfaceKHR = nullptr;
+#else
+    void * fp_vkCreateWin32SurfaceKHR{};
 #endif
 #if (defined(VK_KHR_win32_surface))
     PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR fp_vkGetPhysicalDeviceWin32PresentationSupportKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceWin32PresentationSupportKHR{};
 #endif
 #if (defined(VK_KHR_xlib_surface))
     PFN_vkCreateXlibSurfaceKHR fp_vkCreateXlibSurfaceKHR = nullptr;
+#else
+    void * fp_vkCreateXlibSurfaceKHR{};
 #endif
 #if (defined(VK_KHR_xlib_surface))
     PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR fp_vkGetPhysicalDeviceXlibPresentationSupportKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceXlibPresentationSupportKHR{};
 #endif
 #if (defined(VK_KHR_xcb_surface))
     PFN_vkCreateXcbSurfaceKHR fp_vkCreateXcbSurfaceKHR = nullptr;
+#else
+    void * fp_vkCreateXcbSurfaceKHR{};
 #endif
 #if (defined(VK_KHR_xcb_surface))
     PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR fp_vkGetPhysicalDeviceXcbPresentationSupportKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceXcbPresentationSupportKHR{};
 #endif
 #if (defined(VK_EXT_directfb_surface))
     PFN_vkCreateDirectFBSurfaceEXT fp_vkCreateDirectFBSurfaceEXT = nullptr;
+#else
+    void * fp_vkCreateDirectFBSurfaceEXT{};
 #endif
 #if (defined(VK_EXT_directfb_surface))
     PFN_vkGetPhysicalDeviceDirectFBPresentationSupportEXT fp_vkGetPhysicalDeviceDirectFBPresentationSupportEXT = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceDirectFBPresentationSupportEXT{};
 #endif
 #if (defined(VK_FUCHSIA_imagepipe_surface))
     PFN_vkCreateImagePipeSurfaceFUCHSIA fp_vkCreateImagePipeSurfaceFUCHSIA = nullptr;
+#else
+    void * fp_vkCreateImagePipeSurfaceFUCHSIA{};
 #endif
 #if (defined(VK_GGP_stream_descriptor_surface))
     PFN_vkCreateStreamDescriptorSurfaceGGP fp_vkCreateStreamDescriptorSurfaceGGP = nullptr;
+#else
+    void * fp_vkCreateStreamDescriptorSurfaceGGP{};
 #endif
 #if (defined(VK_QNX_screen_surface))
     PFN_vkCreateScreenSurfaceQNX fp_vkCreateScreenSurfaceQNX = nullptr;
+#else
+    void * fp_vkCreateScreenSurfaceQNX{};
 #endif
 #if (defined(VK_QNX_screen_surface))
     PFN_vkGetPhysicalDeviceScreenPresentationSupportQNX fp_vkGetPhysicalDeviceScreenPresentationSupportQNX = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceScreenPresentationSupportQNX{};
 #endif
 #if (defined(VK_EXT_debug_report))
     PFN_vkCreateDebugReportCallbackEXT fp_vkCreateDebugReportCallbackEXT = nullptr;
+#else
+    void * fp_vkCreateDebugReportCallbackEXT{};
 #endif
 #if (defined(VK_EXT_debug_report))
     PFN_vkDestroyDebugReportCallbackEXT fp_vkDestroyDebugReportCallbackEXT = nullptr;
+#else
+    void * fp_vkDestroyDebugReportCallbackEXT{};
 #endif
 #if (defined(VK_EXT_debug_report))
     PFN_vkDebugReportMessageEXT fp_vkDebugReportMessageEXT = nullptr;
+#else
+    void * fp_vkDebugReportMessageEXT{};
 #endif
 #if (defined(VK_NV_external_memory_capabilities))
     PFN_vkGetPhysicalDeviceExternalImageFormatPropertiesNV fp_vkGetPhysicalDeviceExternalImageFormatPropertiesNV = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceExternalImageFormatPropertiesNV{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetPhysicalDeviceFeatures2 fp_vkGetPhysicalDeviceFeatures2 = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceFeatures2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetPhysicalDeviceProperties2 fp_vkGetPhysicalDeviceProperties2 = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceProperties2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetPhysicalDeviceFormatProperties2 fp_vkGetPhysicalDeviceFormatProperties2 = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceFormatProperties2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetPhysicalDeviceImageFormatProperties2 fp_vkGetPhysicalDeviceImageFormatProperties2 = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceImageFormatProperties2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetPhysicalDeviceQueueFamilyProperties2 fp_vkGetPhysicalDeviceQueueFamilyProperties2 = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceQueueFamilyProperties2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetPhysicalDeviceMemoryProperties2 fp_vkGetPhysicalDeviceMemoryProperties2 = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceMemoryProperties2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetPhysicalDeviceSparseImageFormatProperties2 fp_vkGetPhysicalDeviceSparseImageFormatProperties2 = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSparseImageFormatProperties2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetPhysicalDeviceExternalBufferProperties fp_vkGetPhysicalDeviceExternalBufferProperties = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceExternalBufferProperties{};
 #endif
 #if (defined(VK_NV_external_memory_sci_buf))
     PFN_vkGetPhysicalDeviceExternalMemorySciBufPropertiesNV fp_vkGetPhysicalDeviceExternalMemorySciBufPropertiesNV = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceExternalMemorySciBufPropertiesNV{};
 #endif
 #if (defined(VK_NV_external_memory_sci_buf))
     PFN_vkGetPhysicalDeviceSciBufAttributesNV fp_vkGetPhysicalDeviceSciBufAttributesNV = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSciBufAttributesNV{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetPhysicalDeviceExternalSemaphoreProperties fp_vkGetPhysicalDeviceExternalSemaphoreProperties = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceExternalSemaphoreProperties{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetPhysicalDeviceExternalFenceProperties fp_vkGetPhysicalDeviceExternalFenceProperties = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceExternalFenceProperties{};
 #endif
 #if (defined(VK_NV_external_sci_sync)) || (defined(VK_NV_external_sci_sync2))
     PFN_vkGetPhysicalDeviceSciSyncAttributesNV fp_vkGetPhysicalDeviceSciSyncAttributesNV = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSciSyncAttributesNV{};
 #endif
 #if (defined(VK_EXT_direct_mode_display))
     PFN_vkReleaseDisplayEXT fp_vkReleaseDisplayEXT = nullptr;
+#else
+    void * fp_vkReleaseDisplayEXT{};
 #endif
 #if (defined(VK_EXT_acquire_xlib_display))
     PFN_vkAcquireXlibDisplayEXT fp_vkAcquireXlibDisplayEXT = nullptr;
+#else
+    void * fp_vkAcquireXlibDisplayEXT{};
 #endif
 #if (defined(VK_EXT_acquire_xlib_display))
     PFN_vkGetRandROutputDisplayEXT fp_vkGetRandROutputDisplayEXT = nullptr;
+#else
+    void * fp_vkGetRandROutputDisplayEXT{};
 #endif
 #if (defined(VK_NV_acquire_winrt_display))
     PFN_vkAcquireWinrtDisplayNV fp_vkAcquireWinrtDisplayNV = nullptr;
+#else
+    void * fp_vkAcquireWinrtDisplayNV{};
 #endif
 #if (defined(VK_NV_acquire_winrt_display))
     PFN_vkGetWinrtDisplayNV fp_vkGetWinrtDisplayNV = nullptr;
+#else
+    void * fp_vkGetWinrtDisplayNV{};
 #endif
 #if (defined(VK_EXT_display_surface_counter))
     PFN_vkGetPhysicalDeviceSurfaceCapabilities2EXT fp_vkGetPhysicalDeviceSurfaceCapabilities2EXT = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSurfaceCapabilities2EXT{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkEnumeratePhysicalDeviceGroups fp_vkEnumeratePhysicalDeviceGroups = nullptr;
+#else
+    void * fp_vkEnumeratePhysicalDeviceGroups{};
 #endif
 #if (defined(VK_KHR_swapchain)) || (defined(VK_KHR_device_group))
     PFN_vkGetPhysicalDevicePresentRectanglesKHR fp_vkGetPhysicalDevicePresentRectanglesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDevicePresentRectanglesKHR{};
 #endif
 #if (defined(VK_MVK_ios_surface))
     PFN_vkCreateIOSSurfaceMVK fp_vkCreateIOSSurfaceMVK = nullptr;
+#else
+    void * fp_vkCreateIOSSurfaceMVK{};
 #endif
 #if (defined(VK_MVK_macos_surface))
     PFN_vkCreateMacOSSurfaceMVK fp_vkCreateMacOSSurfaceMVK = nullptr;
+#else
+    void * fp_vkCreateMacOSSurfaceMVK{};
 #endif
 #if (defined(VK_EXT_metal_surface))
     PFN_vkCreateMetalSurfaceEXT fp_vkCreateMetalSurfaceEXT = nullptr;
+#else
+    void * fp_vkCreateMetalSurfaceEXT{};
 #endif
 #if (defined(VK_EXT_sample_locations))
     PFN_vkGetPhysicalDeviceMultisamplePropertiesEXT fp_vkGetPhysicalDeviceMultisamplePropertiesEXT = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceMultisamplePropertiesEXT{};
 #endif
 #if (defined(VK_KHR_get_surface_capabilities2))
     PFN_vkGetPhysicalDeviceSurfaceCapabilities2KHR fp_vkGetPhysicalDeviceSurfaceCapabilities2KHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSurfaceCapabilities2KHR{};
 #endif
 #if (defined(VK_KHR_get_surface_capabilities2))
     PFN_vkGetPhysicalDeviceSurfaceFormats2KHR fp_vkGetPhysicalDeviceSurfaceFormats2KHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSurfaceFormats2KHR{};
 #endif
 #if (defined(VK_KHR_get_display_properties2))
     PFN_vkGetPhysicalDeviceDisplayProperties2KHR fp_vkGetPhysicalDeviceDisplayProperties2KHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceDisplayProperties2KHR{};
 #endif
 #if (defined(VK_KHR_get_display_properties2))
     PFN_vkGetPhysicalDeviceDisplayPlaneProperties2KHR fp_vkGetPhysicalDeviceDisplayPlaneProperties2KHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceDisplayPlaneProperties2KHR{};
 #endif
 #if (defined(VK_KHR_get_display_properties2))
     PFN_vkGetDisplayModeProperties2KHR fp_vkGetDisplayModeProperties2KHR = nullptr;
+#else
+    void * fp_vkGetDisplayModeProperties2KHR{};
 #endif
 #if (defined(VK_KHR_get_display_properties2))
     PFN_vkGetDisplayPlaneCapabilities2KHR fp_vkGetDisplayPlaneCapabilities2KHR = nullptr;
+#else
+    void * fp_vkGetDisplayPlaneCapabilities2KHR{};
 #endif
 #if (defined(VK_EXT_calibrated_timestamps))
     PFN_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT fp_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceCalibrateableTimeDomainsEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkCreateDebugUtilsMessengerEXT fp_vkCreateDebugUtilsMessengerEXT = nullptr;
+#else
+    void * fp_vkCreateDebugUtilsMessengerEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkDestroyDebugUtilsMessengerEXT fp_vkDestroyDebugUtilsMessengerEXT = nullptr;
+#else
+    void * fp_vkDestroyDebugUtilsMessengerEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkSubmitDebugUtilsMessageEXT fp_vkSubmitDebugUtilsMessageEXT = nullptr;
+#else
+    void * fp_vkSubmitDebugUtilsMessageEXT{};
 #endif
 #if (defined(VK_NV_cooperative_matrix))
     PFN_vkGetPhysicalDeviceCooperativeMatrixPropertiesNV fp_vkGetPhysicalDeviceCooperativeMatrixPropertiesNV = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceCooperativeMatrixPropertiesNV{};
 #endif
 #if (defined(VK_EXT_full_screen_exclusive))
     PFN_vkGetPhysicalDeviceSurfacePresentModes2EXT fp_vkGetPhysicalDeviceSurfacePresentModes2EXT = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSurfacePresentModes2EXT{};
 #endif
 #if (defined(VK_KHR_performance_query))
     PFN_vkEnumeratePhysicalDeviceQueueFamilyPerformanceQueryCountersKHR fp_vkEnumeratePhysicalDeviceQueueFamilyPerformanceQueryCountersKHR = nullptr;
+#else
+    void * fp_vkEnumeratePhysicalDeviceQueueFamilyPerformanceQueryCountersKHR{};
 #endif
 #if (defined(VK_KHR_performance_query))
     PFN_vkGetPhysicalDeviceQueueFamilyPerformanceQueryPassesKHR fp_vkGetPhysicalDeviceQueueFamilyPerformanceQueryPassesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceQueueFamilyPerformanceQueryPassesKHR{};
 #endif
 #if (defined(VK_EXT_headless_surface))
     PFN_vkCreateHeadlessSurfaceEXT fp_vkCreateHeadlessSurfaceEXT = nullptr;
+#else
+    void * fp_vkCreateHeadlessSurfaceEXT{};
 #endif
 #if (defined(VK_NV_coverage_reduction_mode))
     PFN_vkGetPhysicalDeviceSupportedFramebufferMixedSamplesCombinationsNV fp_vkGetPhysicalDeviceSupportedFramebufferMixedSamplesCombinationsNV = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceSupportedFramebufferMixedSamplesCombinationsNV{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkGetPhysicalDeviceToolProperties fp_vkGetPhysicalDeviceToolProperties = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceToolProperties{};
 #endif
 #if (defined(VK_KHR_object_refresh))
     PFN_vkGetPhysicalDeviceRefreshableObjectTypesKHR fp_vkGetPhysicalDeviceRefreshableObjectTypesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceRefreshableObjectTypesKHR{};
 #endif
 #if (defined(VK_KHR_fragment_shading_rate))
     PFN_vkGetPhysicalDeviceFragmentShadingRatesKHR fp_vkGetPhysicalDeviceFragmentShadingRatesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceFragmentShadingRatesKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkGetPhysicalDeviceVideoCapabilitiesKHR fp_vkGetPhysicalDeviceVideoCapabilitiesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceVideoCapabilitiesKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkGetPhysicalDeviceVideoFormatPropertiesKHR fp_vkGetPhysicalDeviceVideoFormatPropertiesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceVideoFormatPropertiesKHR{};
 #endif
 #if (defined(VK_KHR_video_encode_queue))
     PFN_vkGetPhysicalDeviceVideoEncodeQualityLevelPropertiesKHR fp_vkGetPhysicalDeviceVideoEncodeQualityLevelPropertiesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceVideoEncodeQualityLevelPropertiesKHR{};
 #endif
 #if (defined(VK_EXT_acquire_drm_display))
     PFN_vkAcquireDrmDisplayEXT fp_vkAcquireDrmDisplayEXT = nullptr;
+#else
+    void * fp_vkAcquireDrmDisplayEXT{};
 #endif
 #if (defined(VK_EXT_acquire_drm_display))
     PFN_vkGetDrmDisplayEXT fp_vkGetDrmDisplayEXT = nullptr;
+#else
+    void * fp_vkGetDrmDisplayEXT{};
 #endif
 #if (defined(VK_NV_optical_flow))
     PFN_vkGetPhysicalDeviceOpticalFlowImageFormatsNV fp_vkGetPhysicalDeviceOpticalFlowImageFormatsNV = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceOpticalFlowImageFormatsNV{};
 #endif
 #if (defined(VK_KHR_cooperative_matrix))
     PFN_vkGetPhysicalDeviceCooperativeMatrixPropertiesKHR fp_vkGetPhysicalDeviceCooperativeMatrixPropertiesKHR = nullptr;
+#else
+    void * fp_vkGetPhysicalDeviceCooperativeMatrixPropertiesKHR{};
 #endif
     bool is_populated() const { return populated; }
     VkInstance instance = VK_NULL_HANDLE;
@@ -4514,6 +4680,8 @@ struct DispatchTable {
     PFN_vkGetQueryPoolResults fp_vkGetQueryPoolResults = nullptr;
 #if (defined(VK_VERSION_1_2))
     PFN_vkResetQueryPool fp_vkResetQueryPool = nullptr;
+#else
+    void * fp_vkResetQueryPool{};
 #endif
     PFN_vkCreateBuffer fp_vkCreateBuffer = nullptr;
     PFN_vkDestroyBuffer fp_vkDestroyBuffer = nullptr;
@@ -4534,6 +4702,8 @@ struct DispatchTable {
     PFN_vkCreateComputePipelines fp_vkCreateComputePipelines = nullptr;
 #if (defined(VK_HUAWEI_subpass_shading))
     PFN_vkGetDeviceSubpassShadingMaxWorkgroupSizeHUAWEI fp_vkGetDeviceSubpassShadingMaxWorkgroupSizeHUAWEI = nullptr;
+#else
+    void * fp_vkGetDeviceSubpassShadingMaxWorkgroupSizeHUAWEI{};
 #endif
     PFN_vkDestroyPipeline fp_vkDestroyPipeline = nullptr;
     PFN_vkCreatePipelineLayout fp_vkCreatePipelineLayout = nullptr;
@@ -4555,6 +4725,8 @@ struct DispatchTable {
     PFN_vkGetRenderAreaGranularity fp_vkGetRenderAreaGranularity = nullptr;
 #if (defined(VK_KHR_maintenance5))
     PFN_vkGetRenderingAreaGranularityKHR fp_vkGetRenderingAreaGranularityKHR = nullptr;
+#else
+    void * fp_vkGetRenderingAreaGranularityKHR{};
 #endif
     PFN_vkCreateCommandPool fp_vkCreateCommandPool = nullptr;
     PFN_vkDestroyCommandPool fp_vkDestroyCommandPool = nullptr;
@@ -4567,6 +4739,8 @@ struct DispatchTable {
     PFN_vkCmdBindPipeline fp_vkCmdBindPipeline = nullptr;
 #if (defined(VK_EXT_attachment_feedback_loop_dynamic_state))
     PFN_vkCmdSetAttachmentFeedbackLoopEnableEXT fp_vkCmdSetAttachmentFeedbackLoopEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetAttachmentFeedbackLoopEnableEXT{};
 #endif
     PFN_vkCmdSetViewport fp_vkCmdSetViewport = nullptr;
     PFN_vkCmdSetScissor fp_vkCmdSetScissor = nullptr;
@@ -4584,9 +4758,13 @@ struct DispatchTable {
     PFN_vkCmdDrawIndexed fp_vkCmdDrawIndexed = nullptr;
 #if (defined(VK_EXT_multi_draw))
     PFN_vkCmdDrawMultiEXT fp_vkCmdDrawMultiEXT = nullptr;
+#else
+    void * fp_vkCmdDrawMultiEXT{};
 #endif
 #if (defined(VK_EXT_multi_draw))
     PFN_vkCmdDrawMultiIndexedEXT fp_vkCmdDrawMultiIndexedEXT = nullptr;
+#else
+    void * fp_vkCmdDrawMultiIndexedEXT{};
 #endif
     PFN_vkCmdDrawIndirect fp_vkCmdDrawIndirect = nullptr;
     PFN_vkCmdDrawIndexedIndirect fp_vkCmdDrawIndexedIndirect = nullptr;
@@ -4594,15 +4772,23 @@ struct DispatchTable {
     PFN_vkCmdDispatchIndirect fp_vkCmdDispatchIndirect = nullptr;
 #if (defined(VK_HUAWEI_subpass_shading))
     PFN_vkCmdSubpassShadingHUAWEI fp_vkCmdSubpassShadingHUAWEI = nullptr;
+#else
+    void * fp_vkCmdSubpassShadingHUAWEI{};
 #endif
 #if (defined(VK_HUAWEI_cluster_culling_shader))
     PFN_vkCmdDrawClusterHUAWEI fp_vkCmdDrawClusterHUAWEI = nullptr;
+#else
+    void * fp_vkCmdDrawClusterHUAWEI{};
 #endif
 #if (defined(VK_HUAWEI_cluster_culling_shader))
     PFN_vkCmdDrawClusterIndirectHUAWEI fp_vkCmdDrawClusterIndirectHUAWEI = nullptr;
+#else
+    void * fp_vkCmdDrawClusterIndirectHUAWEI{};
 #endif
 #if (defined(VK_NV_device_generated_commands_compute))
     PFN_vkCmdUpdatePipelineIndirectBufferNV fp_vkCmdUpdatePipelineIndirectBufferNV = nullptr;
+#else
+    void * fp_vkCmdUpdatePipelineIndirectBufferNV{};
 #endif
     PFN_vkCmdCopyBuffer fp_vkCmdCopyBuffer = nullptr;
     PFN_vkCmdCopyImage fp_vkCmdCopyImage = nullptr;
@@ -4611,9 +4797,13 @@ struct DispatchTable {
     PFN_vkCmdCopyImageToBuffer fp_vkCmdCopyImageToBuffer = nullptr;
 #if (defined(VK_NV_copy_memory_indirect))
     PFN_vkCmdCopyMemoryIndirectNV fp_vkCmdCopyMemoryIndirectNV = nullptr;
+#else
+    void * fp_vkCmdCopyMemoryIndirectNV{};
 #endif
 #if (defined(VK_NV_copy_memory_indirect))
     PFN_vkCmdCopyMemoryToImageIndirectNV fp_vkCmdCopyMemoryToImageIndirectNV = nullptr;
+#else
+    void * fp_vkCmdCopyMemoryToImageIndirectNV{};
 #endif
     PFN_vkCmdUpdateBuffer fp_vkCmdUpdateBuffer = nullptr;
     PFN_vkCmdFillBuffer fp_vkCmdFillBuffer = nullptr;
@@ -4629,9 +4819,13 @@ struct DispatchTable {
     PFN_vkCmdEndQuery fp_vkCmdEndQuery = nullptr;
 #if (defined(VK_EXT_conditional_rendering))
     PFN_vkCmdBeginConditionalRenderingEXT fp_vkCmdBeginConditionalRenderingEXT = nullptr;
+#else
+    void * fp_vkCmdBeginConditionalRenderingEXT{};
 #endif
 #if (defined(VK_EXT_conditional_rendering))
     PFN_vkCmdEndConditionalRenderingEXT fp_vkCmdEndConditionalRenderingEXT = nullptr;
+#else
+    void * fp_vkCmdEndConditionalRenderingEXT{};
 #endif
     PFN_vkCmdResetQueryPool fp_vkCmdResetQueryPool = nullptr;
     PFN_vkCmdWriteTimestamp fp_vkCmdWriteTimestamp = nullptr;
@@ -4643,1083 +4837,1803 @@ struct DispatchTable {
     PFN_vkCmdExecuteCommands fp_vkCmdExecuteCommands = nullptr;
 #if (defined(VK_KHR_display_swapchain))
     PFN_vkCreateSharedSwapchainsKHR fp_vkCreateSharedSwapchainsKHR = nullptr;
+#else
+    void * fp_vkCreateSharedSwapchainsKHR{};
 #endif
 #if (defined(VK_KHR_swapchain))
     PFN_vkCreateSwapchainKHR fp_vkCreateSwapchainKHR = nullptr;
+#else
+    void * fp_vkCreateSwapchainKHR{};
 #endif
 #if (defined(VK_KHR_swapchain))
     PFN_vkDestroySwapchainKHR fp_vkDestroySwapchainKHR = nullptr;
+#else
+    void * fp_vkDestroySwapchainKHR{};
 #endif
 #if (defined(VK_KHR_swapchain))
     PFN_vkGetSwapchainImagesKHR fp_vkGetSwapchainImagesKHR = nullptr;
+#else
+    void * fp_vkGetSwapchainImagesKHR{};
 #endif
 #if (defined(VK_KHR_swapchain))
     PFN_vkAcquireNextImageKHR fp_vkAcquireNextImageKHR = nullptr;
+#else
+    void * fp_vkAcquireNextImageKHR{};
 #endif
 #if (defined(VK_KHR_swapchain))
     PFN_vkQueuePresentKHR fp_vkQueuePresentKHR = nullptr;
+#else
+    void * fp_vkQueuePresentKHR{};
 #endif
 #if (defined(VK_EXT_debug_marker))
     PFN_vkDebugMarkerSetObjectNameEXT fp_vkDebugMarkerSetObjectNameEXT = nullptr;
+#else
+    void * fp_vkDebugMarkerSetObjectNameEXT{};
 #endif
 #if (defined(VK_EXT_debug_marker))
     PFN_vkDebugMarkerSetObjectTagEXT fp_vkDebugMarkerSetObjectTagEXT = nullptr;
+#else
+    void * fp_vkDebugMarkerSetObjectTagEXT{};
 #endif
 #if (defined(VK_EXT_debug_marker))
     PFN_vkCmdDebugMarkerBeginEXT fp_vkCmdDebugMarkerBeginEXT = nullptr;
+#else
+    void * fp_vkCmdDebugMarkerBeginEXT{};
 #endif
 #if (defined(VK_EXT_debug_marker))
     PFN_vkCmdDebugMarkerEndEXT fp_vkCmdDebugMarkerEndEXT = nullptr;
+#else
+    void * fp_vkCmdDebugMarkerEndEXT{};
 #endif
 #if (defined(VK_EXT_debug_marker))
     PFN_vkCmdDebugMarkerInsertEXT fp_vkCmdDebugMarkerInsertEXT = nullptr;
+#else
+    void * fp_vkCmdDebugMarkerInsertEXT{};
 #endif
 #if (defined(VK_NV_external_memory_win32))
     PFN_vkGetMemoryWin32HandleNV fp_vkGetMemoryWin32HandleNV = nullptr;
+#else
+    void * fp_vkGetMemoryWin32HandleNV{};
 #endif
 #if (defined(VK_NV_device_generated_commands))
     PFN_vkCmdExecuteGeneratedCommandsNV fp_vkCmdExecuteGeneratedCommandsNV = nullptr;
+#else
+    void * fp_vkCmdExecuteGeneratedCommandsNV{};
 #endif
 #if (defined(VK_NV_device_generated_commands))
     PFN_vkCmdPreprocessGeneratedCommandsNV fp_vkCmdPreprocessGeneratedCommandsNV = nullptr;
+#else
+    void * fp_vkCmdPreprocessGeneratedCommandsNV{};
 #endif
 #if (defined(VK_NV_device_generated_commands))
     PFN_vkCmdBindPipelineShaderGroupNV fp_vkCmdBindPipelineShaderGroupNV = nullptr;
+#else
+    void * fp_vkCmdBindPipelineShaderGroupNV{};
 #endif
 #if (defined(VK_NV_device_generated_commands))
     PFN_vkGetGeneratedCommandsMemoryRequirementsNV fp_vkGetGeneratedCommandsMemoryRequirementsNV = nullptr;
+#else
+    void * fp_vkGetGeneratedCommandsMemoryRequirementsNV{};
 #endif
 #if (defined(VK_NV_device_generated_commands))
     PFN_vkCreateIndirectCommandsLayoutNV fp_vkCreateIndirectCommandsLayoutNV = nullptr;
+#else
+    void * fp_vkCreateIndirectCommandsLayoutNV{};
 #endif
 #if (defined(VK_NV_device_generated_commands))
     PFN_vkDestroyIndirectCommandsLayoutNV fp_vkDestroyIndirectCommandsLayoutNV = nullptr;
+#else
+    void * fp_vkDestroyIndirectCommandsLayoutNV{};
 #endif
 #if (defined(VK_KHR_push_descriptor))
     PFN_vkCmdPushDescriptorSetKHR fp_vkCmdPushDescriptorSetKHR = nullptr;
+#else
+    void * fp_vkCmdPushDescriptorSetKHR{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkTrimCommandPool fp_vkTrimCommandPool = nullptr;
+#else
+    void * fp_vkTrimCommandPool{};
 #endif
 #if (defined(VK_KHR_external_memory_win32))
     PFN_vkGetMemoryWin32HandleKHR fp_vkGetMemoryWin32HandleKHR = nullptr;
+#else
+    void * fp_vkGetMemoryWin32HandleKHR{};
 #endif
 #if (defined(VK_KHR_external_memory_win32))
     PFN_vkGetMemoryWin32HandlePropertiesKHR fp_vkGetMemoryWin32HandlePropertiesKHR = nullptr;
+#else
+    void * fp_vkGetMemoryWin32HandlePropertiesKHR{};
 #endif
 #if (defined(VK_KHR_external_memory_fd))
     PFN_vkGetMemoryFdKHR fp_vkGetMemoryFdKHR = nullptr;
+#else
+    void * fp_vkGetMemoryFdKHR{};
 #endif
 #if (defined(VK_KHR_external_memory_fd))
     PFN_vkGetMemoryFdPropertiesKHR fp_vkGetMemoryFdPropertiesKHR = nullptr;
+#else
+    void * fp_vkGetMemoryFdPropertiesKHR{};
 #endif
 #if (defined(VK_FUCHSIA_external_memory))
     PFN_vkGetMemoryZirconHandleFUCHSIA fp_vkGetMemoryZirconHandleFUCHSIA = nullptr;
+#else
+    void * fp_vkGetMemoryZirconHandleFUCHSIA{};
 #endif
 #if (defined(VK_FUCHSIA_external_memory))
     PFN_vkGetMemoryZirconHandlePropertiesFUCHSIA fp_vkGetMemoryZirconHandlePropertiesFUCHSIA = nullptr;
+#else
+    void * fp_vkGetMemoryZirconHandlePropertiesFUCHSIA{};
 #endif
 #if (defined(VK_NV_external_memory_rdma))
     PFN_vkGetMemoryRemoteAddressNV fp_vkGetMemoryRemoteAddressNV = nullptr;
+#else
+    void * fp_vkGetMemoryRemoteAddressNV{};
 #endif
 #if (defined(VK_NV_external_memory_sci_buf))
     PFN_vkGetMemorySciBufNV fp_vkGetMemorySciBufNV = nullptr;
+#else
+    void * fp_vkGetMemorySciBufNV{};
 #endif
 #if (defined(VK_KHR_external_semaphore_win32))
     PFN_vkGetSemaphoreWin32HandleKHR fp_vkGetSemaphoreWin32HandleKHR = nullptr;
+#else
+    void * fp_vkGetSemaphoreWin32HandleKHR{};
 #endif
 #if (defined(VK_KHR_external_semaphore_win32))
     PFN_vkImportSemaphoreWin32HandleKHR fp_vkImportSemaphoreWin32HandleKHR = nullptr;
+#else
+    void * fp_vkImportSemaphoreWin32HandleKHR{};
 #endif
 #if (defined(VK_KHR_external_semaphore_fd))
     PFN_vkGetSemaphoreFdKHR fp_vkGetSemaphoreFdKHR = nullptr;
+#else
+    void * fp_vkGetSemaphoreFdKHR{};
 #endif
 #if (defined(VK_KHR_external_semaphore_fd))
     PFN_vkImportSemaphoreFdKHR fp_vkImportSemaphoreFdKHR = nullptr;
+#else
+    void * fp_vkImportSemaphoreFdKHR{};
 #endif
 #if (defined(VK_FUCHSIA_external_semaphore))
     PFN_vkGetSemaphoreZirconHandleFUCHSIA fp_vkGetSemaphoreZirconHandleFUCHSIA = nullptr;
+#else
+    void * fp_vkGetSemaphoreZirconHandleFUCHSIA{};
 #endif
 #if (defined(VK_FUCHSIA_external_semaphore))
     PFN_vkImportSemaphoreZirconHandleFUCHSIA fp_vkImportSemaphoreZirconHandleFUCHSIA = nullptr;
+#else
+    void * fp_vkImportSemaphoreZirconHandleFUCHSIA{};
 #endif
 #if (defined(VK_KHR_external_fence_win32))
     PFN_vkGetFenceWin32HandleKHR fp_vkGetFenceWin32HandleKHR = nullptr;
+#else
+    void * fp_vkGetFenceWin32HandleKHR{};
 #endif
 #if (defined(VK_KHR_external_fence_win32))
     PFN_vkImportFenceWin32HandleKHR fp_vkImportFenceWin32HandleKHR = nullptr;
+#else
+    void * fp_vkImportFenceWin32HandleKHR{};
 #endif
 #if (defined(VK_KHR_external_fence_fd))
     PFN_vkGetFenceFdKHR fp_vkGetFenceFdKHR = nullptr;
+#else
+    void * fp_vkGetFenceFdKHR{};
 #endif
 #if (defined(VK_KHR_external_fence_fd))
     PFN_vkImportFenceFdKHR fp_vkImportFenceFdKHR = nullptr;
+#else
+    void * fp_vkImportFenceFdKHR{};
 #endif
 #if (defined(VK_NV_external_sci_sync)) || (defined(VK_NV_external_sci_sync2))
     PFN_vkGetFenceSciSyncFenceNV fp_vkGetFenceSciSyncFenceNV = nullptr;
+#else
+    void * fp_vkGetFenceSciSyncFenceNV{};
 #endif
 #if (defined(VK_NV_external_sci_sync)) || (defined(VK_NV_external_sci_sync2))
     PFN_vkGetFenceSciSyncObjNV fp_vkGetFenceSciSyncObjNV = nullptr;
+#else
+    void * fp_vkGetFenceSciSyncObjNV{};
 #endif
 #if (defined(VK_NV_external_sci_sync)) || (defined(VK_NV_external_sci_sync2))
     PFN_vkImportFenceSciSyncFenceNV fp_vkImportFenceSciSyncFenceNV = nullptr;
+#else
+    void * fp_vkImportFenceSciSyncFenceNV{};
 #endif
 #if (defined(VK_NV_external_sci_sync)) || (defined(VK_NV_external_sci_sync2))
     PFN_vkImportFenceSciSyncObjNV fp_vkImportFenceSciSyncObjNV = nullptr;
+#else
+    void * fp_vkImportFenceSciSyncObjNV{};
 #endif
 #if (defined(VK_NV_external_sci_sync))
     PFN_vkGetSemaphoreSciSyncObjNV fp_vkGetSemaphoreSciSyncObjNV = nullptr;
+#else
+    void * fp_vkGetSemaphoreSciSyncObjNV{};
 #endif
 #if (defined(VK_NV_external_sci_sync))
     PFN_vkImportSemaphoreSciSyncObjNV fp_vkImportSemaphoreSciSyncObjNV = nullptr;
+#else
+    void * fp_vkImportSemaphoreSciSyncObjNV{};
 #endif
 #if (defined(VK_NV_external_sci_sync2))
     PFN_vkCreateSemaphoreSciSyncPoolNV fp_vkCreateSemaphoreSciSyncPoolNV = nullptr;
+#else
+    void * fp_vkCreateSemaphoreSciSyncPoolNV{};
 #endif
 #if (defined(VK_NV_external_sci_sync2))
     PFN_vkDestroySemaphoreSciSyncPoolNV fp_vkDestroySemaphoreSciSyncPoolNV = nullptr;
+#else
+    void * fp_vkDestroySemaphoreSciSyncPoolNV{};
 #endif
 #if (defined(VK_EXT_display_control))
     PFN_vkDisplayPowerControlEXT fp_vkDisplayPowerControlEXT = nullptr;
+#else
+    void * fp_vkDisplayPowerControlEXT{};
 #endif
 #if (defined(VK_EXT_display_control))
     PFN_vkRegisterDeviceEventEXT fp_vkRegisterDeviceEventEXT = nullptr;
+#else
+    void * fp_vkRegisterDeviceEventEXT{};
 #endif
 #if (defined(VK_EXT_display_control))
     PFN_vkRegisterDisplayEventEXT fp_vkRegisterDisplayEventEXT = nullptr;
+#else
+    void * fp_vkRegisterDisplayEventEXT{};
 #endif
 #if (defined(VK_EXT_display_control))
     PFN_vkGetSwapchainCounterEXT fp_vkGetSwapchainCounterEXT = nullptr;
+#else
+    void * fp_vkGetSwapchainCounterEXT{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetDeviceGroupPeerMemoryFeatures fp_vkGetDeviceGroupPeerMemoryFeatures = nullptr;
+#else
+    void * fp_vkGetDeviceGroupPeerMemoryFeatures{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkBindBufferMemory2 fp_vkBindBufferMemory2 = nullptr;
+#else
+    void * fp_vkBindBufferMemory2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkBindImageMemory2 fp_vkBindImageMemory2 = nullptr;
+#else
+    void * fp_vkBindImageMemory2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkCmdSetDeviceMask fp_vkCmdSetDeviceMask = nullptr;
+#else
+    void * fp_vkCmdSetDeviceMask{};
 #endif
 #if (defined(VK_KHR_swapchain)) || (defined(VK_KHR_device_group))
     PFN_vkGetDeviceGroupPresentCapabilitiesKHR fp_vkGetDeviceGroupPresentCapabilitiesKHR = nullptr;
+#else
+    void * fp_vkGetDeviceGroupPresentCapabilitiesKHR{};
 #endif
 #if (defined(VK_KHR_swapchain)) || (defined(VK_KHR_device_group))
     PFN_vkGetDeviceGroupSurfacePresentModesKHR fp_vkGetDeviceGroupSurfacePresentModesKHR = nullptr;
+#else
+    void * fp_vkGetDeviceGroupSurfacePresentModesKHR{};
 #endif
 #if (defined(VK_KHR_swapchain)) || (defined(VK_KHR_device_group))
     PFN_vkAcquireNextImage2KHR fp_vkAcquireNextImage2KHR = nullptr;
+#else
+    void * fp_vkAcquireNextImage2KHR{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkCmdDispatchBase fp_vkCmdDispatchBase = nullptr;
+#else
+    void * fp_vkCmdDispatchBase{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkCreateDescriptorUpdateTemplate fp_vkCreateDescriptorUpdateTemplate = nullptr;
+#else
+    void * fp_vkCreateDescriptorUpdateTemplate{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkDestroyDescriptorUpdateTemplate fp_vkDestroyDescriptorUpdateTemplate = nullptr;
+#else
+    void * fp_vkDestroyDescriptorUpdateTemplate{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkUpdateDescriptorSetWithTemplate fp_vkUpdateDescriptorSetWithTemplate = nullptr;
+#else
+    void * fp_vkUpdateDescriptorSetWithTemplate{};
 #endif
 #if (defined(VK_KHR_push_descriptor)) || (defined(VK_KHR_push_descriptor)) || (defined(VK_KHR_descriptor_update_template))
     PFN_vkCmdPushDescriptorSetWithTemplateKHR fp_vkCmdPushDescriptorSetWithTemplateKHR = nullptr;
+#else
+    void * fp_vkCmdPushDescriptorSetWithTemplateKHR{};
 #endif
 #if (defined(VK_EXT_hdr_metadata))
     PFN_vkSetHdrMetadataEXT fp_vkSetHdrMetadataEXT = nullptr;
+#else
+    void * fp_vkSetHdrMetadataEXT{};
 #endif
 #if (defined(VK_KHR_shared_presentable_image))
     PFN_vkGetSwapchainStatusKHR fp_vkGetSwapchainStatusKHR = nullptr;
+#else
+    void * fp_vkGetSwapchainStatusKHR{};
 #endif
 #if (defined(VK_GOOGLE_display_timing))
     PFN_vkGetRefreshCycleDurationGOOGLE fp_vkGetRefreshCycleDurationGOOGLE = nullptr;
+#else
+    void * fp_vkGetRefreshCycleDurationGOOGLE{};
 #endif
 #if (defined(VK_GOOGLE_display_timing))
     PFN_vkGetPastPresentationTimingGOOGLE fp_vkGetPastPresentationTimingGOOGLE = nullptr;
+#else
+    void * fp_vkGetPastPresentationTimingGOOGLE{};
 #endif
 #if (defined(VK_NV_clip_space_w_scaling))
     PFN_vkCmdSetViewportWScalingNV fp_vkCmdSetViewportWScalingNV = nullptr;
+#else
+    void * fp_vkCmdSetViewportWScalingNV{};
 #endif
 #if (defined(VK_EXT_discard_rectangles))
     PFN_vkCmdSetDiscardRectangleEXT fp_vkCmdSetDiscardRectangleEXT = nullptr;
+#else
+    void * fp_vkCmdSetDiscardRectangleEXT{};
 #endif
 #if (defined(VK_EXT_discard_rectangles))
     PFN_vkCmdSetDiscardRectangleEnableEXT fp_vkCmdSetDiscardRectangleEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetDiscardRectangleEnableEXT{};
 #endif
 #if (defined(VK_EXT_discard_rectangles))
     PFN_vkCmdSetDiscardRectangleModeEXT fp_vkCmdSetDiscardRectangleModeEXT = nullptr;
+#else
+    void * fp_vkCmdSetDiscardRectangleModeEXT{};
 #endif
 #if (defined(VK_EXT_sample_locations))
     PFN_vkCmdSetSampleLocationsEXT fp_vkCmdSetSampleLocationsEXT = nullptr;
+#else
+    void * fp_vkCmdSetSampleLocationsEXT{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetBufferMemoryRequirements2 fp_vkGetBufferMemoryRequirements2 = nullptr;
+#else
+    void * fp_vkGetBufferMemoryRequirements2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetImageMemoryRequirements2 fp_vkGetImageMemoryRequirements2 = nullptr;
+#else
+    void * fp_vkGetImageMemoryRequirements2{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetImageSparseMemoryRequirements2 fp_vkGetImageSparseMemoryRequirements2 = nullptr;
+#else
+    void * fp_vkGetImageSparseMemoryRequirements2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkGetDeviceBufferMemoryRequirements fp_vkGetDeviceBufferMemoryRequirements = nullptr;
+#else
+    void * fp_vkGetDeviceBufferMemoryRequirements{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkGetDeviceImageMemoryRequirements fp_vkGetDeviceImageMemoryRequirements = nullptr;
+#else
+    void * fp_vkGetDeviceImageMemoryRequirements{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkGetDeviceImageSparseMemoryRequirements fp_vkGetDeviceImageSparseMemoryRequirements = nullptr;
+#else
+    void * fp_vkGetDeviceImageSparseMemoryRequirements{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkCreateSamplerYcbcrConversion fp_vkCreateSamplerYcbcrConversion = nullptr;
+#else
+    void * fp_vkCreateSamplerYcbcrConversion{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkDestroySamplerYcbcrConversion fp_vkDestroySamplerYcbcrConversion = nullptr;
+#else
+    void * fp_vkDestroySamplerYcbcrConversion{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetDeviceQueue2 fp_vkGetDeviceQueue2 = nullptr;
+#else
+    void * fp_vkGetDeviceQueue2{};
 #endif
 #if (defined(VK_EXT_validation_cache))
     PFN_vkCreateValidationCacheEXT fp_vkCreateValidationCacheEXT = nullptr;
+#else
+    void * fp_vkCreateValidationCacheEXT{};
 #endif
 #if (defined(VK_EXT_validation_cache))
     PFN_vkDestroyValidationCacheEXT fp_vkDestroyValidationCacheEXT = nullptr;
+#else
+    void * fp_vkDestroyValidationCacheEXT{};
 #endif
 #if (defined(VK_EXT_validation_cache))
     PFN_vkGetValidationCacheDataEXT fp_vkGetValidationCacheDataEXT = nullptr;
+#else
+    void * fp_vkGetValidationCacheDataEXT{};
 #endif
 #if (defined(VK_EXT_validation_cache))
     PFN_vkMergeValidationCachesEXT fp_vkMergeValidationCachesEXT = nullptr;
+#else
+    void * fp_vkMergeValidationCachesEXT{};
 #endif
 #if (defined(VK_VERSION_1_1))
     PFN_vkGetDescriptorSetLayoutSupport fp_vkGetDescriptorSetLayoutSupport = nullptr;
+#else
+    void * fp_vkGetDescriptorSetLayoutSupport{};
 #endif
 #if (defined(VK_ANDROID_native_buffer))
     PFN_vkGetSwapchainGrallocUsageANDROID fp_vkGetSwapchainGrallocUsageANDROID = nullptr;
+#else
+    void * fp_vkGetSwapchainGrallocUsageANDROID{};
 #endif
 #if (defined(VK_ANDROID_native_buffer))
     PFN_vkGetSwapchainGrallocUsage2ANDROID fp_vkGetSwapchainGrallocUsage2ANDROID = nullptr;
+#else
+    void * fp_vkGetSwapchainGrallocUsage2ANDROID{};
 #endif
 #if (defined(VK_ANDROID_native_buffer))
     PFN_vkAcquireImageANDROID fp_vkAcquireImageANDROID = nullptr;
+#else
+    void * fp_vkAcquireImageANDROID{};
 #endif
 #if (defined(VK_ANDROID_native_buffer))
     PFN_vkQueueSignalReleaseImageANDROID fp_vkQueueSignalReleaseImageANDROID = nullptr;
+#else
+    void * fp_vkQueueSignalReleaseImageANDROID{};
 #endif
 #if (defined(VK_AMD_shader_info))
     PFN_vkGetShaderInfoAMD fp_vkGetShaderInfoAMD = nullptr;
+#else
+    void * fp_vkGetShaderInfoAMD{};
 #endif
 #if (defined(VK_AMD_display_native_hdr))
     PFN_vkSetLocalDimmingAMD fp_vkSetLocalDimmingAMD = nullptr;
+#else
+    void * fp_vkSetLocalDimmingAMD{};
 #endif
 #if (defined(VK_EXT_calibrated_timestamps))
     PFN_vkGetCalibratedTimestampsEXT fp_vkGetCalibratedTimestampsEXT = nullptr;
+#else
+    void * fp_vkGetCalibratedTimestampsEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkSetDebugUtilsObjectNameEXT fp_vkSetDebugUtilsObjectNameEXT = nullptr;
+#else
+    void * fp_vkSetDebugUtilsObjectNameEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkSetDebugUtilsObjectTagEXT fp_vkSetDebugUtilsObjectTagEXT = nullptr;
+#else
+    void * fp_vkSetDebugUtilsObjectTagEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkQueueBeginDebugUtilsLabelEXT fp_vkQueueBeginDebugUtilsLabelEXT = nullptr;
+#else
+    void * fp_vkQueueBeginDebugUtilsLabelEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkQueueEndDebugUtilsLabelEXT fp_vkQueueEndDebugUtilsLabelEXT = nullptr;
+#else
+    void * fp_vkQueueEndDebugUtilsLabelEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkQueueInsertDebugUtilsLabelEXT fp_vkQueueInsertDebugUtilsLabelEXT = nullptr;
+#else
+    void * fp_vkQueueInsertDebugUtilsLabelEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkCmdBeginDebugUtilsLabelEXT fp_vkCmdBeginDebugUtilsLabelEXT = nullptr;
+#else
+    void * fp_vkCmdBeginDebugUtilsLabelEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkCmdEndDebugUtilsLabelEXT fp_vkCmdEndDebugUtilsLabelEXT = nullptr;
+#else
+    void * fp_vkCmdEndDebugUtilsLabelEXT{};
 #endif
 #if (defined(VK_EXT_debug_utils))
     PFN_vkCmdInsertDebugUtilsLabelEXT fp_vkCmdInsertDebugUtilsLabelEXT = nullptr;
+#else
+    void * fp_vkCmdInsertDebugUtilsLabelEXT{};
 #endif
 #if (defined(VK_EXT_external_memory_host))
     PFN_vkGetMemoryHostPointerPropertiesEXT fp_vkGetMemoryHostPointerPropertiesEXT = nullptr;
+#else
+    void * fp_vkGetMemoryHostPointerPropertiesEXT{};
 #endif
 #if (defined(VK_AMD_buffer_marker))
     PFN_vkCmdWriteBufferMarkerAMD fp_vkCmdWriteBufferMarkerAMD = nullptr;
+#else
+    void * fp_vkCmdWriteBufferMarkerAMD{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkCreateRenderPass2 fp_vkCreateRenderPass2 = nullptr;
+#else
+    void * fp_vkCreateRenderPass2{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkCmdBeginRenderPass2 fp_vkCmdBeginRenderPass2 = nullptr;
+#else
+    void * fp_vkCmdBeginRenderPass2{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkCmdNextSubpass2 fp_vkCmdNextSubpass2 = nullptr;
+#else
+    void * fp_vkCmdNextSubpass2{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkCmdEndRenderPass2 fp_vkCmdEndRenderPass2 = nullptr;
+#else
+    void * fp_vkCmdEndRenderPass2{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkGetSemaphoreCounterValue fp_vkGetSemaphoreCounterValue = nullptr;
+#else
+    void * fp_vkGetSemaphoreCounterValue{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkWaitSemaphores fp_vkWaitSemaphores = nullptr;
+#else
+    void * fp_vkWaitSemaphores{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkSignalSemaphore fp_vkSignalSemaphore = nullptr;
+#else
+    void * fp_vkSignalSemaphore{};
 #endif
 #if (defined(VK_ANDROID_external_memory_android_hardware_buffer))
     PFN_vkGetAndroidHardwareBufferPropertiesANDROID fp_vkGetAndroidHardwareBufferPropertiesANDROID = nullptr;
+#else
+    void * fp_vkGetAndroidHardwareBufferPropertiesANDROID{};
 #endif
 #if (defined(VK_ANDROID_external_memory_android_hardware_buffer))
     PFN_vkGetMemoryAndroidHardwareBufferANDROID fp_vkGetMemoryAndroidHardwareBufferANDROID = nullptr;
+#else
+    void * fp_vkGetMemoryAndroidHardwareBufferANDROID{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkCmdDrawIndirectCount fp_vkCmdDrawIndirectCount = nullptr;
+#else
+    void * fp_vkCmdDrawIndirectCount{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkCmdDrawIndexedIndirectCount fp_vkCmdDrawIndexedIndirectCount = nullptr;
+#else
+    void * fp_vkCmdDrawIndexedIndirectCount{};
 #endif
 #if (defined(VK_NV_device_diagnostic_checkpoints))
     PFN_vkCmdSetCheckpointNV fp_vkCmdSetCheckpointNV = nullptr;
+#else
+    void * fp_vkCmdSetCheckpointNV{};
 #endif
 #if (defined(VK_NV_device_diagnostic_checkpoints))
     PFN_vkGetQueueCheckpointDataNV fp_vkGetQueueCheckpointDataNV = nullptr;
+#else
+    void * fp_vkGetQueueCheckpointDataNV{};
 #endif
 #if (defined(VK_EXT_transform_feedback))
     PFN_vkCmdBindTransformFeedbackBuffersEXT fp_vkCmdBindTransformFeedbackBuffersEXT = nullptr;
+#else
+    void * fp_vkCmdBindTransformFeedbackBuffersEXT{};
 #endif
 #if (defined(VK_EXT_transform_feedback))
     PFN_vkCmdBeginTransformFeedbackEXT fp_vkCmdBeginTransformFeedbackEXT = nullptr;
+#else
+    void * fp_vkCmdBeginTransformFeedbackEXT{};
 #endif
 #if (defined(VK_EXT_transform_feedback))
     PFN_vkCmdEndTransformFeedbackEXT fp_vkCmdEndTransformFeedbackEXT = nullptr;
+#else
+    void * fp_vkCmdEndTransformFeedbackEXT{};
 #endif
 #if (defined(VK_EXT_transform_feedback))
     PFN_vkCmdBeginQueryIndexedEXT fp_vkCmdBeginQueryIndexedEXT = nullptr;
+#else
+    void * fp_vkCmdBeginQueryIndexedEXT{};
 #endif
 #if (defined(VK_EXT_transform_feedback))
     PFN_vkCmdEndQueryIndexedEXT fp_vkCmdEndQueryIndexedEXT = nullptr;
+#else
+    void * fp_vkCmdEndQueryIndexedEXT{};
 #endif
 #if (defined(VK_EXT_transform_feedback))
     PFN_vkCmdDrawIndirectByteCountEXT fp_vkCmdDrawIndirectByteCountEXT = nullptr;
+#else
+    void * fp_vkCmdDrawIndirectByteCountEXT{};
 #endif
 #if (defined(VK_NV_scissor_exclusive))
     PFN_vkCmdSetExclusiveScissorNV fp_vkCmdSetExclusiveScissorNV = nullptr;
+#else
+    void * fp_vkCmdSetExclusiveScissorNV{};
 #endif
 #if (defined(VK_NV_scissor_exclusive))
     PFN_vkCmdSetExclusiveScissorEnableNV fp_vkCmdSetExclusiveScissorEnableNV = nullptr;
+#else
+    void * fp_vkCmdSetExclusiveScissorEnableNV{};
 #endif
 #if (defined(VK_NV_shading_rate_image))
     PFN_vkCmdBindShadingRateImageNV fp_vkCmdBindShadingRateImageNV = nullptr;
+#else
+    void * fp_vkCmdBindShadingRateImageNV{};
 #endif
 #if (defined(VK_NV_shading_rate_image))
     PFN_vkCmdSetViewportShadingRatePaletteNV fp_vkCmdSetViewportShadingRatePaletteNV = nullptr;
+#else
+    void * fp_vkCmdSetViewportShadingRatePaletteNV{};
 #endif
 #if (defined(VK_NV_shading_rate_image))
     PFN_vkCmdSetCoarseSampleOrderNV fp_vkCmdSetCoarseSampleOrderNV = nullptr;
+#else
+    void * fp_vkCmdSetCoarseSampleOrderNV{};
 #endif
 #if (defined(VK_NV_mesh_shader))
     PFN_vkCmdDrawMeshTasksNV fp_vkCmdDrawMeshTasksNV = nullptr;
+#else
+    void * fp_vkCmdDrawMeshTasksNV{};
 #endif
 #if (defined(VK_NV_mesh_shader))
     PFN_vkCmdDrawMeshTasksIndirectNV fp_vkCmdDrawMeshTasksIndirectNV = nullptr;
+#else
+    void * fp_vkCmdDrawMeshTasksIndirectNV{};
 #endif
 #if (defined(VK_NV_mesh_shader))
     PFN_vkCmdDrawMeshTasksIndirectCountNV fp_vkCmdDrawMeshTasksIndirectCountNV = nullptr;
+#else
+    void * fp_vkCmdDrawMeshTasksIndirectCountNV{};
 #endif
 #if (defined(VK_EXT_mesh_shader))
     PFN_vkCmdDrawMeshTasksEXT fp_vkCmdDrawMeshTasksEXT = nullptr;
+#else
+    void * fp_vkCmdDrawMeshTasksEXT{};
 #endif
 #if (defined(VK_EXT_mesh_shader))
     PFN_vkCmdDrawMeshTasksIndirectEXT fp_vkCmdDrawMeshTasksIndirectEXT = nullptr;
+#else
+    void * fp_vkCmdDrawMeshTasksIndirectEXT{};
 #endif
 #if (defined(VK_EXT_mesh_shader))
     PFN_vkCmdDrawMeshTasksIndirectCountEXT fp_vkCmdDrawMeshTasksIndirectCountEXT = nullptr;
+#else
+    void * fp_vkCmdDrawMeshTasksIndirectCountEXT{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkCompileDeferredNV fp_vkCompileDeferredNV = nullptr;
+#else
+    void * fp_vkCompileDeferredNV{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkCreateAccelerationStructureNV fp_vkCreateAccelerationStructureNV = nullptr;
+#else
+    void * fp_vkCreateAccelerationStructureNV{};
 #endif
 #if (defined(VK_HUAWEI_invocation_mask))
     PFN_vkCmdBindInvocationMaskHUAWEI fp_vkCmdBindInvocationMaskHUAWEI = nullptr;
+#else
+    void * fp_vkCmdBindInvocationMaskHUAWEI{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkDestroyAccelerationStructureKHR fp_vkDestroyAccelerationStructureKHR = nullptr;
+#else
+    void * fp_vkDestroyAccelerationStructureKHR{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkDestroyAccelerationStructureNV fp_vkDestroyAccelerationStructureNV = nullptr;
+#else
+    void * fp_vkDestroyAccelerationStructureNV{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkGetAccelerationStructureMemoryRequirementsNV fp_vkGetAccelerationStructureMemoryRequirementsNV = nullptr;
+#else
+    void * fp_vkGetAccelerationStructureMemoryRequirementsNV{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkBindAccelerationStructureMemoryNV fp_vkBindAccelerationStructureMemoryNV = nullptr;
+#else
+    void * fp_vkBindAccelerationStructureMemoryNV{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkCmdCopyAccelerationStructureNV fp_vkCmdCopyAccelerationStructureNV = nullptr;
+#else
+    void * fp_vkCmdCopyAccelerationStructureNV{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkCmdCopyAccelerationStructureKHR fp_vkCmdCopyAccelerationStructureKHR = nullptr;
+#else
+    void * fp_vkCmdCopyAccelerationStructureKHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkCopyAccelerationStructureKHR fp_vkCopyAccelerationStructureKHR = nullptr;
+#else
+    void * fp_vkCopyAccelerationStructureKHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkCmdCopyAccelerationStructureToMemoryKHR fp_vkCmdCopyAccelerationStructureToMemoryKHR = nullptr;
+#else
+    void * fp_vkCmdCopyAccelerationStructureToMemoryKHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkCopyAccelerationStructureToMemoryKHR fp_vkCopyAccelerationStructureToMemoryKHR = nullptr;
+#else
+    void * fp_vkCopyAccelerationStructureToMemoryKHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkCmdCopyMemoryToAccelerationStructureKHR fp_vkCmdCopyMemoryToAccelerationStructureKHR = nullptr;
+#else
+    void * fp_vkCmdCopyMemoryToAccelerationStructureKHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkCopyMemoryToAccelerationStructureKHR fp_vkCopyMemoryToAccelerationStructureKHR = nullptr;
+#else
+    void * fp_vkCopyMemoryToAccelerationStructureKHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkCmdWriteAccelerationStructuresPropertiesKHR fp_vkCmdWriteAccelerationStructuresPropertiesKHR = nullptr;
+#else
+    void * fp_vkCmdWriteAccelerationStructuresPropertiesKHR{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkCmdWriteAccelerationStructuresPropertiesNV fp_vkCmdWriteAccelerationStructuresPropertiesNV = nullptr;
+#else
+    void * fp_vkCmdWriteAccelerationStructuresPropertiesNV{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkCmdBuildAccelerationStructureNV fp_vkCmdBuildAccelerationStructureNV = nullptr;
+#else
+    void * fp_vkCmdBuildAccelerationStructureNV{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkWriteAccelerationStructuresPropertiesKHR fp_vkWriteAccelerationStructuresPropertiesKHR = nullptr;
+#else
+    void * fp_vkWriteAccelerationStructuresPropertiesKHR{};
 #endif
 #if (defined(VK_KHR_ray_tracing_pipeline))
     PFN_vkCmdTraceRaysKHR fp_vkCmdTraceRaysKHR = nullptr;
+#else
+    void * fp_vkCmdTraceRaysKHR{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkCmdTraceRaysNV fp_vkCmdTraceRaysNV = nullptr;
+#else
+    void * fp_vkCmdTraceRaysNV{};
 #endif
 #if (defined(VK_KHR_ray_tracing_pipeline))
     PFN_vkGetRayTracingShaderGroupHandlesKHR fp_vkGetRayTracingShaderGroupHandlesKHR = nullptr;
+#else
+    void * fp_vkGetRayTracingShaderGroupHandlesKHR{};
 #endif
 #if (defined(VK_KHR_ray_tracing_pipeline))
     PFN_vkGetRayTracingCaptureReplayShaderGroupHandlesKHR fp_vkGetRayTracingCaptureReplayShaderGroupHandlesKHR = nullptr;
+#else
+    void * fp_vkGetRayTracingCaptureReplayShaderGroupHandlesKHR{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkGetAccelerationStructureHandleNV fp_vkGetAccelerationStructureHandleNV = nullptr;
+#else
+    void * fp_vkGetAccelerationStructureHandleNV{};
 #endif
 #if (defined(VK_NV_ray_tracing))
     PFN_vkCreateRayTracingPipelinesNV fp_vkCreateRayTracingPipelinesNV = nullptr;
+#else
+    void * fp_vkCreateRayTracingPipelinesNV{};
 #endif
 #if (defined(VK_KHR_ray_tracing_pipeline))
     PFN_vkCreateRayTracingPipelinesKHR fp_vkCreateRayTracingPipelinesKHR = nullptr;
+#else
+    void * fp_vkCreateRayTracingPipelinesKHR{};
 #endif
 #if (defined(VK_KHR_ray_tracing_pipeline))
     PFN_vkCmdTraceRaysIndirectKHR fp_vkCmdTraceRaysIndirectKHR = nullptr;
+#else
+    void * fp_vkCmdTraceRaysIndirectKHR{};
 #endif
 #if (defined(VK_KHR_ray_tracing_maintenance1))
     PFN_vkCmdTraceRaysIndirect2KHR fp_vkCmdTraceRaysIndirect2KHR = nullptr;
+#else
+    void * fp_vkCmdTraceRaysIndirect2KHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkGetDeviceAccelerationStructureCompatibilityKHR fp_vkGetDeviceAccelerationStructureCompatibilityKHR = nullptr;
+#else
+    void * fp_vkGetDeviceAccelerationStructureCompatibilityKHR{};
 #endif
 #if (defined(VK_KHR_ray_tracing_pipeline))
     PFN_vkGetRayTracingShaderGroupStackSizeKHR fp_vkGetRayTracingShaderGroupStackSizeKHR = nullptr;
+#else
+    void * fp_vkGetRayTracingShaderGroupStackSizeKHR{};
 #endif
 #if (defined(VK_KHR_ray_tracing_pipeline))
     PFN_vkCmdSetRayTracingPipelineStackSizeKHR fp_vkCmdSetRayTracingPipelineStackSizeKHR = nullptr;
+#else
+    void * fp_vkCmdSetRayTracingPipelineStackSizeKHR{};
 #endif
 #if (defined(VK_EXT_full_screen_exclusive)) || (defined(VK_EXT_full_screen_exclusive))
     PFN_vkGetDeviceGroupSurfacePresentModes2EXT fp_vkGetDeviceGroupSurfacePresentModes2EXT = nullptr;
+#else
+    void * fp_vkGetDeviceGroupSurfacePresentModes2EXT{};
 #endif
 #if (defined(VK_EXT_full_screen_exclusive))
     PFN_vkAcquireFullScreenExclusiveModeEXT fp_vkAcquireFullScreenExclusiveModeEXT = nullptr;
+#else
+    void * fp_vkAcquireFullScreenExclusiveModeEXT{};
 #endif
 #if (defined(VK_EXT_full_screen_exclusive))
     PFN_vkReleaseFullScreenExclusiveModeEXT fp_vkReleaseFullScreenExclusiveModeEXT = nullptr;
+#else
+    void * fp_vkReleaseFullScreenExclusiveModeEXT{};
 #endif
 #if (defined(VK_KHR_performance_query))
     PFN_vkAcquireProfilingLockKHR fp_vkAcquireProfilingLockKHR = nullptr;
+#else
+    void * fp_vkAcquireProfilingLockKHR{};
 #endif
 #if (defined(VK_KHR_performance_query))
     PFN_vkReleaseProfilingLockKHR fp_vkReleaseProfilingLockKHR = nullptr;
+#else
+    void * fp_vkReleaseProfilingLockKHR{};
 #endif
 #if (defined(VK_EXT_image_drm_format_modifier))
     PFN_vkGetImageDrmFormatModifierPropertiesEXT fp_vkGetImageDrmFormatModifierPropertiesEXT = nullptr;
+#else
+    void * fp_vkGetImageDrmFormatModifierPropertiesEXT{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkGetBufferOpaqueCaptureAddress fp_vkGetBufferOpaqueCaptureAddress = nullptr;
+#else
+    void * fp_vkGetBufferOpaqueCaptureAddress{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkGetBufferDeviceAddress fp_vkGetBufferDeviceAddress = nullptr;
+#else
+    void * fp_vkGetBufferDeviceAddress{};
 #endif
 #if (defined(VK_INTEL_performance_query))
     PFN_vkInitializePerformanceApiINTEL fp_vkInitializePerformanceApiINTEL = nullptr;
+#else
+    void * fp_vkInitializePerformanceApiINTEL{};
 #endif
 #if (defined(VK_INTEL_performance_query))
     PFN_vkUninitializePerformanceApiINTEL fp_vkUninitializePerformanceApiINTEL = nullptr;
+#else
+    void * fp_vkUninitializePerformanceApiINTEL{};
 #endif
 #if (defined(VK_INTEL_performance_query))
     PFN_vkCmdSetPerformanceMarkerINTEL fp_vkCmdSetPerformanceMarkerINTEL = nullptr;
+#else
+    void * fp_vkCmdSetPerformanceMarkerINTEL{};
 #endif
 #if (defined(VK_INTEL_performance_query))
     PFN_vkCmdSetPerformanceStreamMarkerINTEL fp_vkCmdSetPerformanceStreamMarkerINTEL = nullptr;
+#else
+    void * fp_vkCmdSetPerformanceStreamMarkerINTEL{};
 #endif
 #if (defined(VK_INTEL_performance_query))
     PFN_vkCmdSetPerformanceOverrideINTEL fp_vkCmdSetPerformanceOverrideINTEL = nullptr;
+#else
+    void * fp_vkCmdSetPerformanceOverrideINTEL{};
 #endif
 #if (defined(VK_INTEL_performance_query))
     PFN_vkAcquirePerformanceConfigurationINTEL fp_vkAcquirePerformanceConfigurationINTEL = nullptr;
+#else
+    void * fp_vkAcquirePerformanceConfigurationINTEL{};
 #endif
 #if (defined(VK_INTEL_performance_query))
     PFN_vkReleasePerformanceConfigurationINTEL fp_vkReleasePerformanceConfigurationINTEL = nullptr;
+#else
+    void * fp_vkReleasePerformanceConfigurationINTEL{};
 #endif
 #if (defined(VK_INTEL_performance_query))
     PFN_vkQueueSetPerformanceConfigurationINTEL fp_vkQueueSetPerformanceConfigurationINTEL = nullptr;
+#else
+    void * fp_vkQueueSetPerformanceConfigurationINTEL{};
 #endif
 #if (defined(VK_INTEL_performance_query))
     PFN_vkGetPerformanceParameterINTEL fp_vkGetPerformanceParameterINTEL = nullptr;
+#else
+    void * fp_vkGetPerformanceParameterINTEL{};
 #endif
 #if (defined(VK_VERSION_1_2))
     PFN_vkGetDeviceMemoryOpaqueCaptureAddress fp_vkGetDeviceMemoryOpaqueCaptureAddress = nullptr;
+#else
+    void * fp_vkGetDeviceMemoryOpaqueCaptureAddress{};
 #endif
 #if (defined(VK_KHR_pipeline_executable_properties))
     PFN_vkGetPipelineExecutablePropertiesKHR fp_vkGetPipelineExecutablePropertiesKHR = nullptr;
+#else
+    void * fp_vkGetPipelineExecutablePropertiesKHR{};
 #endif
 #if (defined(VK_KHR_pipeline_executable_properties))
     PFN_vkGetPipelineExecutableStatisticsKHR fp_vkGetPipelineExecutableStatisticsKHR = nullptr;
+#else
+    void * fp_vkGetPipelineExecutableStatisticsKHR{};
 #endif
 #if (defined(VK_KHR_pipeline_executable_properties))
     PFN_vkGetPipelineExecutableInternalRepresentationsKHR fp_vkGetPipelineExecutableInternalRepresentationsKHR = nullptr;
+#else
+    void * fp_vkGetPipelineExecutableInternalRepresentationsKHR{};
 #endif
 #if (defined(VK_EXT_line_rasterization))
     PFN_vkCmdSetLineStippleEXT fp_vkCmdSetLineStippleEXT = nullptr;
+#else
+    void * fp_vkCmdSetLineStippleEXT{};
 #endif
 #if (defined(VKSC_VERSION_1_0))
     PFN_vkGetFaultData fp_vkGetFaultData = nullptr;
+#else
+    void * fp_vkGetFaultData{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkCreateAccelerationStructureKHR fp_vkCreateAccelerationStructureKHR = nullptr;
+#else
+    void * fp_vkCreateAccelerationStructureKHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkCmdBuildAccelerationStructuresKHR fp_vkCmdBuildAccelerationStructuresKHR = nullptr;
+#else
+    void * fp_vkCmdBuildAccelerationStructuresKHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkCmdBuildAccelerationStructuresIndirectKHR fp_vkCmdBuildAccelerationStructuresIndirectKHR = nullptr;
+#else
+    void * fp_vkCmdBuildAccelerationStructuresIndirectKHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkBuildAccelerationStructuresKHR fp_vkBuildAccelerationStructuresKHR = nullptr;
+#else
+    void * fp_vkBuildAccelerationStructuresKHR{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkGetAccelerationStructureDeviceAddressKHR fp_vkGetAccelerationStructureDeviceAddressKHR = nullptr;
+#else
+    void * fp_vkGetAccelerationStructureDeviceAddressKHR{};
 #endif
 #if (defined(VK_KHR_deferred_host_operations))
     PFN_vkCreateDeferredOperationKHR fp_vkCreateDeferredOperationKHR = nullptr;
+#else
+    void * fp_vkCreateDeferredOperationKHR{};
 #endif
 #if (defined(VK_KHR_deferred_host_operations))
     PFN_vkDestroyDeferredOperationKHR fp_vkDestroyDeferredOperationKHR = nullptr;
+#else
+    void * fp_vkDestroyDeferredOperationKHR{};
 #endif
 #if (defined(VK_KHR_deferred_host_operations))
     PFN_vkGetDeferredOperationMaxConcurrencyKHR fp_vkGetDeferredOperationMaxConcurrencyKHR = nullptr;
+#else
+    void * fp_vkGetDeferredOperationMaxConcurrencyKHR{};
 #endif
 #if (defined(VK_KHR_deferred_host_operations))
     PFN_vkGetDeferredOperationResultKHR fp_vkGetDeferredOperationResultKHR = nullptr;
+#else
+    void * fp_vkGetDeferredOperationResultKHR{};
 #endif
 #if (defined(VK_KHR_deferred_host_operations))
     PFN_vkDeferredOperationJoinKHR fp_vkDeferredOperationJoinKHR = nullptr;
+#else
+    void * fp_vkDeferredOperationJoinKHR{};
 #endif
 #if (defined(VK_NV_device_generated_commands_compute))
     PFN_vkGetPipelineIndirectMemoryRequirementsNV fp_vkGetPipelineIndirectMemoryRequirementsNV = nullptr;
+#else
+    void * fp_vkGetPipelineIndirectMemoryRequirementsNV{};
 #endif
 #if (defined(VK_NV_device_generated_commands_compute))
     PFN_vkGetPipelineIndirectDeviceAddressNV fp_vkGetPipelineIndirectDeviceAddressNV = nullptr;
+#else
+    void * fp_vkGetPipelineIndirectDeviceAddressNV{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetCullMode fp_vkCmdSetCullMode = nullptr;
+#else
+    void * fp_vkCmdSetCullMode{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetFrontFace fp_vkCmdSetFrontFace = nullptr;
+#else
+    void * fp_vkCmdSetFrontFace{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetPrimitiveTopology fp_vkCmdSetPrimitiveTopology = nullptr;
+#else
+    void * fp_vkCmdSetPrimitiveTopology{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetViewportWithCount fp_vkCmdSetViewportWithCount = nullptr;
+#else
+    void * fp_vkCmdSetViewportWithCount{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetScissorWithCount fp_vkCmdSetScissorWithCount = nullptr;
+#else
+    void * fp_vkCmdSetScissorWithCount{};
 #endif
 #if (defined(VK_KHR_maintenance5))
     PFN_vkCmdBindIndexBuffer2KHR fp_vkCmdBindIndexBuffer2KHR = nullptr;
+#else
+    void * fp_vkCmdBindIndexBuffer2KHR{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdBindVertexBuffers2 fp_vkCmdBindVertexBuffers2 = nullptr;
+#else
+    void * fp_vkCmdBindVertexBuffers2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetDepthTestEnable fp_vkCmdSetDepthTestEnable = nullptr;
+#else
+    void * fp_vkCmdSetDepthTestEnable{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetDepthWriteEnable fp_vkCmdSetDepthWriteEnable = nullptr;
+#else
+    void * fp_vkCmdSetDepthWriteEnable{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetDepthCompareOp fp_vkCmdSetDepthCompareOp = nullptr;
+#else
+    void * fp_vkCmdSetDepthCompareOp{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetDepthBoundsTestEnable fp_vkCmdSetDepthBoundsTestEnable = nullptr;
+#else
+    void * fp_vkCmdSetDepthBoundsTestEnable{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetStencilTestEnable fp_vkCmdSetStencilTestEnable = nullptr;
+#else
+    void * fp_vkCmdSetStencilTestEnable{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetStencilOp fp_vkCmdSetStencilOp = nullptr;
+#else
+    void * fp_vkCmdSetStencilOp{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state2)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetPatchControlPointsEXT fp_vkCmdSetPatchControlPointsEXT = nullptr;
+#else
+    void * fp_vkCmdSetPatchControlPointsEXT{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetRasterizerDiscardEnable fp_vkCmdSetRasterizerDiscardEnable = nullptr;
+#else
+    void * fp_vkCmdSetRasterizerDiscardEnable{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetDepthBiasEnable fp_vkCmdSetDepthBiasEnable = nullptr;
+#else
+    void * fp_vkCmdSetDepthBiasEnable{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state2)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetLogicOpEXT fp_vkCmdSetLogicOpEXT = nullptr;
+#else
+    void * fp_vkCmdSetLogicOpEXT{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetPrimitiveRestartEnable fp_vkCmdSetPrimitiveRestartEnable = nullptr;
+#else
+    void * fp_vkCmdSetPrimitiveRestartEnable{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetTessellationDomainOriginEXT fp_vkCmdSetTessellationDomainOriginEXT = nullptr;
+#else
+    void * fp_vkCmdSetTessellationDomainOriginEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetDepthClampEnableEXT fp_vkCmdSetDepthClampEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetDepthClampEnableEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetPolygonModeEXT fp_vkCmdSetPolygonModeEXT = nullptr;
+#else
+    void * fp_vkCmdSetPolygonModeEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetRasterizationSamplesEXT fp_vkCmdSetRasterizationSamplesEXT = nullptr;
+#else
+    void * fp_vkCmdSetRasterizationSamplesEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetSampleMaskEXT fp_vkCmdSetSampleMaskEXT = nullptr;
+#else
+    void * fp_vkCmdSetSampleMaskEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetAlphaToCoverageEnableEXT fp_vkCmdSetAlphaToCoverageEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetAlphaToCoverageEnableEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetAlphaToOneEnableEXT fp_vkCmdSetAlphaToOneEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetAlphaToOneEnableEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetLogicOpEnableEXT fp_vkCmdSetLogicOpEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetLogicOpEnableEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetColorBlendEnableEXT fp_vkCmdSetColorBlendEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetColorBlendEnableEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetColorBlendEquationEXT fp_vkCmdSetColorBlendEquationEXT = nullptr;
+#else
+    void * fp_vkCmdSetColorBlendEquationEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetColorWriteMaskEXT fp_vkCmdSetColorWriteMaskEXT = nullptr;
+#else
+    void * fp_vkCmdSetColorWriteMaskEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetRasterizationStreamEXT fp_vkCmdSetRasterizationStreamEXT = nullptr;
+#else
+    void * fp_vkCmdSetRasterizationStreamEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetConservativeRasterizationModeEXT fp_vkCmdSetConservativeRasterizationModeEXT = nullptr;
+#else
+    void * fp_vkCmdSetConservativeRasterizationModeEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetExtraPrimitiveOverestimationSizeEXT fp_vkCmdSetExtraPrimitiveOverestimationSizeEXT = nullptr;
+#else
+    void * fp_vkCmdSetExtraPrimitiveOverestimationSizeEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetDepthClipEnableEXT fp_vkCmdSetDepthClipEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetDepthClipEnableEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetSampleLocationsEnableEXT fp_vkCmdSetSampleLocationsEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetSampleLocationsEnableEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetColorBlendAdvancedEXT fp_vkCmdSetColorBlendAdvancedEXT = nullptr;
+#else
+    void * fp_vkCmdSetColorBlendAdvancedEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetProvokingVertexModeEXT fp_vkCmdSetProvokingVertexModeEXT = nullptr;
+#else
+    void * fp_vkCmdSetProvokingVertexModeEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetLineRasterizationModeEXT fp_vkCmdSetLineRasterizationModeEXT = nullptr;
+#else
+    void * fp_vkCmdSetLineRasterizationModeEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetLineStippleEnableEXT fp_vkCmdSetLineStippleEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetLineStippleEnableEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetDepthClipNegativeOneToOneEXT fp_vkCmdSetDepthClipNegativeOneToOneEXT = nullptr;
+#else
+    void * fp_vkCmdSetDepthClipNegativeOneToOneEXT{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetViewportWScalingEnableNV fp_vkCmdSetViewportWScalingEnableNV = nullptr;
+#else
+    void * fp_vkCmdSetViewportWScalingEnableNV{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetViewportSwizzleNV fp_vkCmdSetViewportSwizzleNV = nullptr;
+#else
+    void * fp_vkCmdSetViewportSwizzleNV{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetCoverageToColorEnableNV fp_vkCmdSetCoverageToColorEnableNV = nullptr;
+#else
+    void * fp_vkCmdSetCoverageToColorEnableNV{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetCoverageToColorLocationNV fp_vkCmdSetCoverageToColorLocationNV = nullptr;
+#else
+    void * fp_vkCmdSetCoverageToColorLocationNV{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetCoverageModulationModeNV fp_vkCmdSetCoverageModulationModeNV = nullptr;
+#else
+    void * fp_vkCmdSetCoverageModulationModeNV{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetCoverageModulationTableEnableNV fp_vkCmdSetCoverageModulationTableEnableNV = nullptr;
+#else
+    void * fp_vkCmdSetCoverageModulationTableEnableNV{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetCoverageModulationTableNV fp_vkCmdSetCoverageModulationTableNV = nullptr;
+#else
+    void * fp_vkCmdSetCoverageModulationTableNV{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetShadingRateImageEnableNV fp_vkCmdSetShadingRateImageEnableNV = nullptr;
+#else
+    void * fp_vkCmdSetShadingRateImageEnableNV{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetCoverageReductionModeNV fp_vkCmdSetCoverageReductionModeNV = nullptr;
+#else
+    void * fp_vkCmdSetCoverageReductionModeNV{};
 #endif
 #if (defined(VK_EXT_extended_dynamic_state3)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetRepresentativeFragmentTestEnableNV fp_vkCmdSetRepresentativeFragmentTestEnableNV = nullptr;
+#else
+    void * fp_vkCmdSetRepresentativeFragmentTestEnableNV{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCreatePrivateDataSlot fp_vkCreatePrivateDataSlot = nullptr;
+#else
+    void * fp_vkCreatePrivateDataSlot{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkDestroyPrivateDataSlot fp_vkDestroyPrivateDataSlot = nullptr;
+#else
+    void * fp_vkDestroyPrivateDataSlot{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkSetPrivateData fp_vkSetPrivateData = nullptr;
+#else
+    void * fp_vkSetPrivateData{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkGetPrivateData fp_vkGetPrivateData = nullptr;
+#else
+    void * fp_vkGetPrivateData{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdCopyBuffer2 fp_vkCmdCopyBuffer2 = nullptr;
+#else
+    void * fp_vkCmdCopyBuffer2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdCopyImage2 fp_vkCmdCopyImage2 = nullptr;
+#else
+    void * fp_vkCmdCopyImage2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdBlitImage2 fp_vkCmdBlitImage2 = nullptr;
+#else
+    void * fp_vkCmdBlitImage2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdCopyBufferToImage2 fp_vkCmdCopyBufferToImage2 = nullptr;
+#else
+    void * fp_vkCmdCopyBufferToImage2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdCopyImageToBuffer2 fp_vkCmdCopyImageToBuffer2 = nullptr;
+#else
+    void * fp_vkCmdCopyImageToBuffer2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdResolveImage2 fp_vkCmdResolveImage2 = nullptr;
+#else
+    void * fp_vkCmdResolveImage2{};
 #endif
 #if (defined(VK_KHR_object_refresh))
     PFN_vkCmdRefreshObjectsKHR fp_vkCmdRefreshObjectsKHR = nullptr;
+#else
+    void * fp_vkCmdRefreshObjectsKHR{};
 #endif
 #if (defined(VK_KHR_fragment_shading_rate))
     PFN_vkCmdSetFragmentShadingRateKHR fp_vkCmdSetFragmentShadingRateKHR = nullptr;
+#else
+    void * fp_vkCmdSetFragmentShadingRateKHR{};
 #endif
 #if (defined(VK_NV_fragment_shading_rate_enums))
     PFN_vkCmdSetFragmentShadingRateEnumNV fp_vkCmdSetFragmentShadingRateEnumNV = nullptr;
+#else
+    void * fp_vkCmdSetFragmentShadingRateEnumNV{};
 #endif
 #if (defined(VK_KHR_acceleration_structure))
     PFN_vkGetAccelerationStructureBuildSizesKHR fp_vkGetAccelerationStructureBuildSizesKHR = nullptr;
+#else
+    void * fp_vkGetAccelerationStructureBuildSizesKHR{};
 #endif
 #if (defined(VK_EXT_vertex_input_dynamic_state)) || (defined(VK_EXT_shader_object))
     PFN_vkCmdSetVertexInputEXT fp_vkCmdSetVertexInputEXT = nullptr;
+#else
+    void * fp_vkCmdSetVertexInputEXT{};
 #endif
 #if (defined(VK_EXT_color_write_enable))
     PFN_vkCmdSetColorWriteEnableEXT fp_vkCmdSetColorWriteEnableEXT = nullptr;
+#else
+    void * fp_vkCmdSetColorWriteEnableEXT{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdSetEvent2 fp_vkCmdSetEvent2 = nullptr;
+#else
+    void * fp_vkCmdSetEvent2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdResetEvent2 fp_vkCmdResetEvent2 = nullptr;
+#else
+    void * fp_vkCmdResetEvent2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdWaitEvents2 fp_vkCmdWaitEvents2 = nullptr;
+#else
+    void * fp_vkCmdWaitEvents2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdPipelineBarrier2 fp_vkCmdPipelineBarrier2 = nullptr;
+#else
+    void * fp_vkCmdPipelineBarrier2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkQueueSubmit2 fp_vkQueueSubmit2 = nullptr;
+#else
+    void * fp_vkQueueSubmit2{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdWriteTimestamp2 fp_vkCmdWriteTimestamp2 = nullptr;
+#else
+    void * fp_vkCmdWriteTimestamp2{};
 #endif
 #if (defined(VK_KHR_synchronization2))
     PFN_vkCmdWriteBufferMarker2AMD fp_vkCmdWriteBufferMarker2AMD = nullptr;
+#else
+    void * fp_vkCmdWriteBufferMarker2AMD{};
 #endif
 #if (defined(VK_KHR_synchronization2))
     PFN_vkGetQueueCheckpointData2NV fp_vkGetQueueCheckpointData2NV = nullptr;
+#else
+    void * fp_vkGetQueueCheckpointData2NV{};
 #endif
 #if (defined(VK_EXT_host_image_copy))
     PFN_vkCopyMemoryToImageEXT fp_vkCopyMemoryToImageEXT = nullptr;
+#else
+    void * fp_vkCopyMemoryToImageEXT{};
 #endif
 #if (defined(VK_EXT_host_image_copy))
     PFN_vkCopyImageToMemoryEXT fp_vkCopyImageToMemoryEXT = nullptr;
+#else
+    void * fp_vkCopyImageToMemoryEXT{};
 #endif
 #if (defined(VK_EXT_host_image_copy))
     PFN_vkCopyImageToImageEXT fp_vkCopyImageToImageEXT = nullptr;
+#else
+    void * fp_vkCopyImageToImageEXT{};
 #endif
 #if (defined(VK_EXT_host_image_copy))
     PFN_vkTransitionImageLayoutEXT fp_vkTransitionImageLayoutEXT = nullptr;
+#else
+    void * fp_vkTransitionImageLayoutEXT{};
 #endif
 #if (defined(VKSC_VERSION_1_0))
     PFN_vkGetCommandPoolMemoryConsumption fp_vkGetCommandPoolMemoryConsumption = nullptr;
+#else
+    void * fp_vkGetCommandPoolMemoryConsumption{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkCreateVideoSessionKHR fp_vkCreateVideoSessionKHR = nullptr;
+#else
+    void * fp_vkCreateVideoSessionKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkDestroyVideoSessionKHR fp_vkDestroyVideoSessionKHR = nullptr;
+#else
+    void * fp_vkDestroyVideoSessionKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkCreateVideoSessionParametersKHR fp_vkCreateVideoSessionParametersKHR = nullptr;
+#else
+    void * fp_vkCreateVideoSessionParametersKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkUpdateVideoSessionParametersKHR fp_vkUpdateVideoSessionParametersKHR = nullptr;
+#else
+    void * fp_vkUpdateVideoSessionParametersKHR{};
 #endif
 #if (defined(VK_KHR_video_encode_queue))
     PFN_vkGetEncodedVideoSessionParametersKHR fp_vkGetEncodedVideoSessionParametersKHR = nullptr;
+#else
+    void * fp_vkGetEncodedVideoSessionParametersKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkDestroyVideoSessionParametersKHR fp_vkDestroyVideoSessionParametersKHR = nullptr;
+#else
+    void * fp_vkDestroyVideoSessionParametersKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkGetVideoSessionMemoryRequirementsKHR fp_vkGetVideoSessionMemoryRequirementsKHR = nullptr;
+#else
+    void * fp_vkGetVideoSessionMemoryRequirementsKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkBindVideoSessionMemoryKHR fp_vkBindVideoSessionMemoryKHR = nullptr;
+#else
+    void * fp_vkBindVideoSessionMemoryKHR{};
 #endif
 #if (defined(VK_KHR_video_decode_queue))
     PFN_vkCmdDecodeVideoKHR fp_vkCmdDecodeVideoKHR = nullptr;
+#else
+    void * fp_vkCmdDecodeVideoKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkCmdBeginVideoCodingKHR fp_vkCmdBeginVideoCodingKHR = nullptr;
+#else
+    void * fp_vkCmdBeginVideoCodingKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkCmdControlVideoCodingKHR fp_vkCmdControlVideoCodingKHR = nullptr;
+#else
+    void * fp_vkCmdControlVideoCodingKHR{};
 #endif
 #if (defined(VK_KHR_video_queue))
     PFN_vkCmdEndVideoCodingKHR fp_vkCmdEndVideoCodingKHR = nullptr;
+#else
+    void * fp_vkCmdEndVideoCodingKHR{};
 #endif
 #if (defined(VK_KHR_video_encode_queue))
     PFN_vkCmdEncodeVideoKHR fp_vkCmdEncodeVideoKHR = nullptr;
+#else
+    void * fp_vkCmdEncodeVideoKHR{};
 #endif
 #if (defined(VK_NV_memory_decompression))
     PFN_vkCmdDecompressMemoryNV fp_vkCmdDecompressMemoryNV = nullptr;
+#else
+    void * fp_vkCmdDecompressMemoryNV{};
 #endif
 #if (defined(VK_NV_memory_decompression))
     PFN_vkCmdDecompressMemoryIndirectCountNV fp_vkCmdDecompressMemoryIndirectCountNV = nullptr;
+#else
+    void * fp_vkCmdDecompressMemoryIndirectCountNV{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkGetDescriptorSetLayoutSizeEXT fp_vkGetDescriptorSetLayoutSizeEXT = nullptr;
+#else
+    void * fp_vkGetDescriptorSetLayoutSizeEXT{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkGetDescriptorSetLayoutBindingOffsetEXT fp_vkGetDescriptorSetLayoutBindingOffsetEXT = nullptr;
+#else
+    void * fp_vkGetDescriptorSetLayoutBindingOffsetEXT{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkGetDescriptorEXT fp_vkGetDescriptorEXT = nullptr;
+#else
+    void * fp_vkGetDescriptorEXT{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkCmdBindDescriptorBuffersEXT fp_vkCmdBindDescriptorBuffersEXT = nullptr;
+#else
+    void * fp_vkCmdBindDescriptorBuffersEXT{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkCmdSetDescriptorBufferOffsetsEXT fp_vkCmdSetDescriptorBufferOffsetsEXT = nullptr;
+#else
+    void * fp_vkCmdSetDescriptorBufferOffsetsEXT{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkCmdBindDescriptorBufferEmbeddedSamplersEXT fp_vkCmdBindDescriptorBufferEmbeddedSamplersEXT = nullptr;
+#else
+    void * fp_vkCmdBindDescriptorBufferEmbeddedSamplersEXT{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkGetBufferOpaqueCaptureDescriptorDataEXT fp_vkGetBufferOpaqueCaptureDescriptorDataEXT = nullptr;
+#else
+    void * fp_vkGetBufferOpaqueCaptureDescriptorDataEXT{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkGetImageOpaqueCaptureDescriptorDataEXT fp_vkGetImageOpaqueCaptureDescriptorDataEXT = nullptr;
+#else
+    void * fp_vkGetImageOpaqueCaptureDescriptorDataEXT{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkGetImageViewOpaqueCaptureDescriptorDataEXT fp_vkGetImageViewOpaqueCaptureDescriptorDataEXT = nullptr;
+#else
+    void * fp_vkGetImageViewOpaqueCaptureDescriptorDataEXT{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkGetSamplerOpaqueCaptureDescriptorDataEXT fp_vkGetSamplerOpaqueCaptureDescriptorDataEXT = nullptr;
+#else
+    void * fp_vkGetSamplerOpaqueCaptureDescriptorDataEXT{};
 #endif
 #if (defined(VK_EXT_descriptor_buffer))
     PFN_vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT fp_vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT = nullptr;
+#else
+    void * fp_vkGetAccelerationStructureOpaqueCaptureDescriptorDataEXT{};
 #endif
 #if (defined(VK_EXT_pageable_device_local_memory))
     PFN_vkSetDeviceMemoryPriorityEXT fp_vkSetDeviceMemoryPriorityEXT = nullptr;
+#else
+    void * fp_vkSetDeviceMemoryPriorityEXT{};
 #endif
 #if (defined(VK_KHR_present_wait))
     PFN_vkWaitForPresentKHR fp_vkWaitForPresentKHR = nullptr;
+#else
+    void * fp_vkWaitForPresentKHR{};
 #endif
 #if (defined(VK_FUCHSIA_buffer_collection))
     PFN_vkCreateBufferCollectionFUCHSIA fp_vkCreateBufferCollectionFUCHSIA = nullptr;
+#else
+    void * fp_vkCreateBufferCollectionFUCHSIA{};
 #endif
 #if (defined(VK_FUCHSIA_buffer_collection))
     PFN_vkSetBufferCollectionBufferConstraintsFUCHSIA fp_vkSetBufferCollectionBufferConstraintsFUCHSIA = nullptr;
+#else
+    void * fp_vkSetBufferCollectionBufferConstraintsFUCHSIA{};
 #endif
 #if (defined(VK_FUCHSIA_buffer_collection))
     PFN_vkSetBufferCollectionImageConstraintsFUCHSIA fp_vkSetBufferCollectionImageConstraintsFUCHSIA = nullptr;
+#else
+    void * fp_vkSetBufferCollectionImageConstraintsFUCHSIA{};
 #endif
 #if (defined(VK_FUCHSIA_buffer_collection))
     PFN_vkDestroyBufferCollectionFUCHSIA fp_vkDestroyBufferCollectionFUCHSIA = nullptr;
+#else
+    void * fp_vkDestroyBufferCollectionFUCHSIA{};
 #endif
 #if (defined(VK_FUCHSIA_buffer_collection))
     PFN_vkGetBufferCollectionPropertiesFUCHSIA fp_vkGetBufferCollectionPropertiesFUCHSIA = nullptr;
+#else
+    void * fp_vkGetBufferCollectionPropertiesFUCHSIA{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdBeginRendering fp_vkCmdBeginRendering = nullptr;
+#else
+    void * fp_vkCmdBeginRendering{};
 #endif
 #if (defined(VK_VERSION_1_3))
     PFN_vkCmdEndRendering fp_vkCmdEndRendering = nullptr;
+#else
+    void * fp_vkCmdEndRendering{};
 #endif
 #if (defined(VK_VALVE_descriptor_set_host_mapping))
     PFN_vkGetDescriptorSetLayoutHostMappingInfoVALVE fp_vkGetDescriptorSetLayoutHostMappingInfoVALVE = nullptr;
+#else
+    void * fp_vkGetDescriptorSetLayoutHostMappingInfoVALVE{};
 #endif
 #if (defined(VK_VALVE_descriptor_set_host_mapping))
     PFN_vkGetDescriptorSetHostMappingVALVE fp_vkGetDescriptorSetHostMappingVALVE = nullptr;
+#else
+    void * fp_vkGetDescriptorSetHostMappingVALVE{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkCreateMicromapEXT fp_vkCreateMicromapEXT = nullptr;
+#else
+    void * fp_vkCreateMicromapEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkCmdBuildMicromapsEXT fp_vkCmdBuildMicromapsEXT = nullptr;
+#else
+    void * fp_vkCmdBuildMicromapsEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkBuildMicromapsEXT fp_vkBuildMicromapsEXT = nullptr;
+#else
+    void * fp_vkBuildMicromapsEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkDestroyMicromapEXT fp_vkDestroyMicromapEXT = nullptr;
+#else
+    void * fp_vkDestroyMicromapEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkCmdCopyMicromapEXT fp_vkCmdCopyMicromapEXT = nullptr;
+#else
+    void * fp_vkCmdCopyMicromapEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkCopyMicromapEXT fp_vkCopyMicromapEXT = nullptr;
+#else
+    void * fp_vkCopyMicromapEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkCmdCopyMicromapToMemoryEXT fp_vkCmdCopyMicromapToMemoryEXT = nullptr;
+#else
+    void * fp_vkCmdCopyMicromapToMemoryEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkCopyMicromapToMemoryEXT fp_vkCopyMicromapToMemoryEXT = nullptr;
+#else
+    void * fp_vkCopyMicromapToMemoryEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkCmdCopyMemoryToMicromapEXT fp_vkCmdCopyMemoryToMicromapEXT = nullptr;
+#else
+    void * fp_vkCmdCopyMemoryToMicromapEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkCopyMemoryToMicromapEXT fp_vkCopyMemoryToMicromapEXT = nullptr;
+#else
+    void * fp_vkCopyMemoryToMicromapEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkCmdWriteMicromapsPropertiesEXT fp_vkCmdWriteMicromapsPropertiesEXT = nullptr;
+#else
+    void * fp_vkCmdWriteMicromapsPropertiesEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkWriteMicromapsPropertiesEXT fp_vkWriteMicromapsPropertiesEXT = nullptr;
+#else
+    void * fp_vkWriteMicromapsPropertiesEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkGetDeviceMicromapCompatibilityEXT fp_vkGetDeviceMicromapCompatibilityEXT = nullptr;
+#else
+    void * fp_vkGetDeviceMicromapCompatibilityEXT{};
 #endif
 #if (defined(VK_EXT_opacity_micromap))
     PFN_vkGetMicromapBuildSizesEXT fp_vkGetMicromapBuildSizesEXT = nullptr;
+#else
+    void * fp_vkGetMicromapBuildSizesEXT{};
 #endif
 #if (defined(VK_EXT_shader_module_identifier))
     PFN_vkGetShaderModuleIdentifierEXT fp_vkGetShaderModuleIdentifierEXT = nullptr;
+#else
+    void * fp_vkGetShaderModuleIdentifierEXT{};
 #endif
 #if (defined(VK_EXT_shader_module_identifier))
     PFN_vkGetShaderModuleCreateInfoIdentifierEXT fp_vkGetShaderModuleCreateInfoIdentifierEXT = nullptr;
+#else
+    void * fp_vkGetShaderModuleCreateInfoIdentifierEXT{};
 #endif
 #if (defined(VK_KHR_maintenance5))
     PFN_vkGetImageSubresourceLayout2KHR fp_vkGetImageSubresourceLayout2KHR = nullptr;
+#else
+    void * fp_vkGetImageSubresourceLayout2KHR{};
 #endif
 #if (defined(VK_EXT_pipeline_properties))
     PFN_vkGetPipelinePropertiesEXT fp_vkGetPipelinePropertiesEXT = nullptr;
+#else
+    void * fp_vkGetPipelinePropertiesEXT{};
 #endif
 #if (defined(VK_EXT_metal_objects))
     PFN_vkExportMetalObjectsEXT fp_vkExportMetalObjectsEXT = nullptr;
+#else
+    void * fp_vkExportMetalObjectsEXT{};
 #endif
 #if (defined(VK_QCOM_tile_properties))
     PFN_vkGetFramebufferTilePropertiesQCOM fp_vkGetFramebufferTilePropertiesQCOM = nullptr;
+#else
+    void * fp_vkGetFramebufferTilePropertiesQCOM{};
 #endif
 #if (defined(VK_QCOM_tile_properties))
     PFN_vkGetDynamicRenderingTilePropertiesQCOM fp_vkGetDynamicRenderingTilePropertiesQCOM = nullptr;
+#else
+    void * fp_vkGetDynamicRenderingTilePropertiesQCOM{};
 #endif
 #if (defined(VK_NV_optical_flow))
     PFN_vkCreateOpticalFlowSessionNV fp_vkCreateOpticalFlowSessionNV = nullptr;
+#else
+    void * fp_vkCreateOpticalFlowSessionNV{};
 #endif
 #if (defined(VK_NV_optical_flow))
     PFN_vkDestroyOpticalFlowSessionNV fp_vkDestroyOpticalFlowSessionNV = nullptr;
+#else
+    void * fp_vkDestroyOpticalFlowSessionNV{};
 #endif
 #if (defined(VK_NV_optical_flow))
     PFN_vkBindOpticalFlowSessionImageNV fp_vkBindOpticalFlowSessionImageNV = nullptr;
+#else
+    void * fp_vkBindOpticalFlowSessionImageNV{};
 #endif
 #if (defined(VK_NV_optical_flow))
     PFN_vkCmdOpticalFlowExecuteNV fp_vkCmdOpticalFlowExecuteNV = nullptr;
+#else
+    void * fp_vkCmdOpticalFlowExecuteNV{};
 #endif
 #if (defined(VK_EXT_device_fault))
     PFN_vkGetDeviceFaultInfoEXT fp_vkGetDeviceFaultInfoEXT = nullptr;
+#else
+    void * fp_vkGetDeviceFaultInfoEXT{};
 #endif
 #if (defined(VK_EXT_depth_bias_control))
     PFN_vkCmdSetDepthBias2EXT fp_vkCmdSetDepthBias2EXT = nullptr;
+#else
+    void * fp_vkCmdSetDepthBias2EXT{};
 #endif
 #if (defined(VK_EXT_swapchain_maintenance1))
     PFN_vkReleaseSwapchainImagesEXT fp_vkReleaseSwapchainImagesEXT = nullptr;
+#else
+    void * fp_vkReleaseSwapchainImagesEXT{};
 #endif
 #if (defined(VK_KHR_maintenance5))
     PFN_vkGetDeviceImageSubresourceLayoutKHR fp_vkGetDeviceImageSubresourceLayoutKHR = nullptr;
+#else
+    void * fp_vkGetDeviceImageSubresourceLayoutKHR{};
 #endif
 #if (defined(VK_KHR_map_memory2))
     PFN_vkMapMemory2KHR fp_vkMapMemory2KHR = nullptr;
+#else
+    void * fp_vkMapMemory2KHR{};
 #endif
 #if (defined(VK_KHR_map_memory2))
     PFN_vkUnmapMemory2KHR fp_vkUnmapMemory2KHR = nullptr;
+#else
+    void * fp_vkUnmapMemory2KHR{};
 #endif
 #if (defined(VK_EXT_shader_object))
     PFN_vkCreateShadersEXT fp_vkCreateShadersEXT = nullptr;
+#else
+    void * fp_vkCreateShadersEXT{};
 #endif
 #if (defined(VK_EXT_shader_object))
     PFN_vkDestroyShaderEXT fp_vkDestroyShaderEXT = nullptr;
+#else
+    void * fp_vkDestroyShaderEXT{};
 #endif
 #if (defined(VK_EXT_shader_object))
     PFN_vkGetShaderBinaryDataEXT fp_vkGetShaderBinaryDataEXT = nullptr;
+#else
+    void * fp_vkGetShaderBinaryDataEXT{};
 #endif
 #if (defined(VK_EXT_shader_object))
     PFN_vkCmdBindShadersEXT fp_vkCmdBindShadersEXT = nullptr;
+#else
+    void * fp_vkCmdBindShadersEXT{};
 #endif
 #if (defined(VK_QNX_external_memory_screen_buffer))
     PFN_vkGetScreenBufferPropertiesQNX fp_vkGetScreenBufferPropertiesQNX = nullptr;
+#else
+    void * fp_vkGetScreenBufferPropertiesQNX{};
 #endif
 #if (defined(VK_AMDX_shader_enqueue))
     PFN_vkGetExecutionGraphPipelineScratchSizeAMDX fp_vkGetExecutionGraphPipelineScratchSizeAMDX = nullptr;
+#else
+    void * fp_vkGetExecutionGraphPipelineScratchSizeAMDX{};
 #endif
 #if (defined(VK_AMDX_shader_enqueue))
     PFN_vkGetExecutionGraphPipelineNodeIndexAMDX fp_vkGetExecutionGraphPipelineNodeIndexAMDX = nullptr;
+#else
+    void * fp_vkGetExecutionGraphPipelineNodeIndexAMDX{};
 #endif
 #if (defined(VK_AMDX_shader_enqueue))
     PFN_vkCreateExecutionGraphPipelinesAMDX fp_vkCreateExecutionGraphPipelinesAMDX = nullptr;
+#else
+    void * fp_vkCreateExecutionGraphPipelinesAMDX{};
 #endif
 #if (defined(VK_AMDX_shader_enqueue))
     PFN_vkCmdInitializeGraphScratchMemoryAMDX fp_vkCmdInitializeGraphScratchMemoryAMDX = nullptr;
+#else
+    void * fp_vkCmdInitializeGraphScratchMemoryAMDX{};
 #endif
 #if (defined(VK_AMDX_shader_enqueue))
     PFN_vkCmdDispatchGraphAMDX fp_vkCmdDispatchGraphAMDX = nullptr;
+#else
+    void * fp_vkCmdDispatchGraphAMDX{};
 #endif
 #if (defined(VK_AMDX_shader_enqueue))
     PFN_vkCmdDispatchGraphIndirectAMDX fp_vkCmdDispatchGraphIndirectAMDX = nullptr;
+#else
+    void * fp_vkCmdDispatchGraphIndirectAMDX{};
 #endif
 #if (defined(VK_AMDX_shader_enqueue))
     PFN_vkCmdDispatchGraphIndirectCountAMDX fp_vkCmdDispatchGraphIndirectCountAMDX = nullptr;
+#else
+    void * fp_vkCmdDispatchGraphIndirectCountAMDX{};
 #endif
 #if (defined(VK_NV_low_latency2))
     PFN_vkSetLatencySleepModeNV fp_vkSetLatencySleepModeNV = nullptr;
+#else
+    void * fp_vkSetLatencySleepModeNV{};
 #endif
 #if (defined(VK_NV_low_latency2))
     PFN_vkLatencySleepNV fp_vkLatencySleepNV = nullptr;
+#else
+    void * fp_vkLatencySleepNV{};
 #endif
 #if (defined(VK_NV_low_latency2))
     PFN_vkSetLatencyMarkerNV fp_vkSetLatencyMarkerNV = nullptr;
+#else
+    void * fp_vkSetLatencyMarkerNV{};
 #endif
 #if (defined(VK_NV_low_latency2))
     PFN_vkGetLatencyTimingsNV fp_vkGetLatencyTimingsNV = nullptr;
+#else
+    void * fp_vkGetLatencyTimingsNV{};
 #endif
 #if (defined(VK_NV_low_latency2))
     PFN_vkQueueNotifyOutOfBandNV fp_vkQueueNotifyOutOfBandNV = nullptr;
+#else
+    void * fp_vkQueueNotifyOutOfBandNV{};
 #endif
     bool is_populated() const { return populated; }
     VkDevice device = VK_NULL_HANDLE;