diff --git a/README.md b/README.md
index 4449a58..d222dd8 100644
--- a/README.md
+++ b/README.md
@@ -944,7 +944,7 @@ With this define you can specify whether the ```DispatchLoaderDynamic``` is impo
 
 #### VULKAN_HPP_TYPESAFE_CONVERSION
 
-32-bit vulkan is not typesafe for non-dispatchable handles, so we don't allow copy constructors on this platform by default. To enable this feature on 32-bit platforms define ```VULKAN_HPP_TYPESAFE_CONVERSION```.
+32-bit vulkan is not typesafe for non-dispatchable handles, so we don't allow copy constructors on this platform by default. To enable this feature on 32-bit platforms, ```#define VULKAN_HPP_TYPESAFE_CONVERSION 1```. To disable this feature on 64-bit platforms, ```#define VULKAN_HPP_TYPESAFE_CONVERSION 0```.
 
 #### VULKAN_HPP_UNEXPECTED
 
diff --git a/VulkanHppGenerator.cpp b/VulkanHppGenerator.cpp
index 10f82c5..bbf325f 100644
--- a/VulkanHppGenerator.cpp
+++ b/VulkanHppGenerator.cpp
@@ -7582,7 +7582,7 @@ std::string VulkanHppGenerator::generateHandle( std::pair<std::string, HandleDat
     }
 
     const std::string typesafeExplicitKeyword          = handleData.second.isDispatchable ? "" : "VULKAN_HPP_TYPESAFE_EXPLICIT ";
-    const std::string typesafeConversionConditional    = handleData.second.isDispatchable ? "" : "#if defined(VULKAN_HPP_TYPESAFE_CONVERSION)\n";
+    const std::string typesafeConversionConditional    = handleData.second.isDispatchable ? "" : "#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )\n";
     const std::string typesafeConversionConditionalEnd = handleData.second.isDispatchable ? "" : "#endif\n";
 
     static const std::string templateString = R"(
diff --git a/snippets/macros.hpp b/snippets/macros.hpp
index 648ae44..ee10903 100644
--- a/snippets/macros.hpp
+++ b/snippets/macros.hpp
@@ -78,13 +78,15 @@
 #endif
 
 // 32-bit vulkan is not typesafe for non-dispatchable handles, so don't allow copy constructors on this platform by default.
-// To enable this feature on 32-bit platforms please define VULKAN_HPP_TYPESAFE_CONVERSION
+// To enable this feature on 32-bit platforms please #define VULKAN_HPP_TYPESAFE_CONVERSION 1
+// To disable this feature on 64-bit platforms please #define VULKAN_HPP_TYPESAFE_CONVERSION 0
 #if ( VK_USE_64_BIT_PTR_DEFINES == 1 )
 #  if !defined( VULKAN_HPP_TYPESAFE_CONVERSION )
-#    define VULKAN_HPP_TYPESAFE_CONVERSION
+#    define VULKAN_HPP_TYPESAFE_CONVERSION 1
 #  endif
 #endif
 
+
 #if defined( __GNUC__ )
 #  define GCC_VERSION ( __GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__ )
 #endif
@@ -121,7 +123,7 @@
 #  endif
 #endif
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
 #  define VULKAN_HPP_TYPESAFE_EXPLICIT
 #else
 #  define VULKAN_HPP_TYPESAFE_EXPLICIT explicit
diff --git a/vulkan/vulkan_handles.hpp b/vulkan/vulkan_handles.hpp
index 289ff80..2d9841b 100644
--- a/vulkan/vulkan_handles.hpp
+++ b/vulkan/vulkan_handles.hpp
@@ -2410,7 +2410,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT SurfaceKHR( VkSurfaceKHR surfaceKHR ) VULKAN_HPP_NOEXCEPT : m_surfaceKHR( surfaceKHR ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     SurfaceKHR & operator=( VkSurfaceKHR surfaceKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_surfaceKHR = surfaceKHR;
@@ -2500,7 +2500,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DebugReportCallbackEXT & operator=( VkDebugReportCallbackEXT debugReportCallbackEXT ) VULKAN_HPP_NOEXCEPT
     {
       m_debugReportCallbackEXT = debugReportCallbackEXT;
@@ -2590,7 +2590,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DebugUtilsMessengerEXT & operator=( VkDebugUtilsMessengerEXT debugUtilsMessengerEXT ) VULKAN_HPP_NOEXCEPT
     {
       m_debugUtilsMessengerEXT = debugUtilsMessengerEXT;
@@ -2671,7 +2671,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT DisplayKHR( VkDisplayKHR displayKHR ) VULKAN_HPP_NOEXCEPT : m_displayKHR( displayKHR ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DisplayKHR & operator=( VkDisplayKHR displayKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_displayKHR = displayKHR;
@@ -2758,7 +2758,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT SwapchainKHR( VkSwapchainKHR swapchainKHR ) VULKAN_HPP_NOEXCEPT : m_swapchainKHR( swapchainKHR ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     SwapchainKHR & operator=( VkSwapchainKHR swapchainKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_swapchainKHR = swapchainKHR;
@@ -2845,7 +2845,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Semaphore( VkSemaphore semaphore ) VULKAN_HPP_NOEXCEPT : m_semaphore( semaphore ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Semaphore & operator=( VkSemaphore semaphore ) VULKAN_HPP_NOEXCEPT
     {
       m_semaphore = semaphore;
@@ -2932,7 +2932,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Fence( VkFence fence ) VULKAN_HPP_NOEXCEPT : m_fence( fence ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Fence & operator=( VkFence fence ) VULKAN_HPP_NOEXCEPT
     {
       m_fence = fence;
@@ -3022,7 +3022,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     PerformanceConfigurationINTEL & operator=( VkPerformanceConfigurationINTEL performanceConfigurationINTEL ) VULKAN_HPP_NOEXCEPT
     {
       m_performanceConfigurationINTEL = performanceConfigurationINTEL;
@@ -3103,7 +3103,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT QueryPool( VkQueryPool queryPool ) VULKAN_HPP_NOEXCEPT : m_queryPool( queryPool ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     QueryPool & operator=( VkQueryPool queryPool ) VULKAN_HPP_NOEXCEPT
     {
       m_queryPool = queryPool;
@@ -3190,7 +3190,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Buffer( VkBuffer buffer ) VULKAN_HPP_NOEXCEPT : m_buffer( buffer ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Buffer & operator=( VkBuffer buffer ) VULKAN_HPP_NOEXCEPT
     {
       m_buffer = buffer;
@@ -3277,7 +3277,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT PipelineLayout( VkPipelineLayout pipelineLayout ) VULKAN_HPP_NOEXCEPT : m_pipelineLayout( pipelineLayout ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     PipelineLayout & operator=( VkPipelineLayout pipelineLayout ) VULKAN_HPP_NOEXCEPT
     {
       m_pipelineLayout = pipelineLayout;
@@ -3364,7 +3364,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT DescriptorSet( VkDescriptorSet descriptorSet ) VULKAN_HPP_NOEXCEPT : m_descriptorSet( descriptorSet ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DescriptorSet & operator=( VkDescriptorSet descriptorSet ) VULKAN_HPP_NOEXCEPT
     {
       m_descriptorSet = descriptorSet;
@@ -3451,7 +3451,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT ImageView( VkImageView imageView ) VULKAN_HPP_NOEXCEPT : m_imageView( imageView ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     ImageView & operator=( VkImageView imageView ) VULKAN_HPP_NOEXCEPT
     {
       m_imageView = imageView;
@@ -3538,7 +3538,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Pipeline( VkPipeline pipeline ) VULKAN_HPP_NOEXCEPT : m_pipeline( pipeline ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Pipeline & operator=( VkPipeline pipeline ) VULKAN_HPP_NOEXCEPT
     {
       m_pipeline = pipeline;
@@ -3625,7 +3625,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT ShaderEXT( VkShaderEXT shaderEXT ) VULKAN_HPP_NOEXCEPT : m_shaderEXT( shaderEXT ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     ShaderEXT & operator=( VkShaderEXT shaderEXT ) VULKAN_HPP_NOEXCEPT
     {
       m_shaderEXT = shaderEXT;
@@ -3706,7 +3706,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Image( VkImage image ) VULKAN_HPP_NOEXCEPT : m_image( image ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Image & operator=( VkImage image ) VULKAN_HPP_NOEXCEPT
     {
       m_image = image;
@@ -3796,7 +3796,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     AccelerationStructureNV & operator=( VkAccelerationStructureNV accelerationStructureNV ) VULKAN_HPP_NOEXCEPT
     {
       m_accelerationStructureNV = accelerationStructureNV;
@@ -3886,7 +3886,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     OpticalFlowSessionNV & operator=( VkOpticalFlowSessionNV opticalFlowSessionNV ) VULKAN_HPP_NOEXCEPT
     {
       m_opticalFlowSessionNV = opticalFlowSessionNV;
@@ -3970,7 +3970,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DescriptorUpdateTemplate & operator=( VkDescriptorUpdateTemplate descriptorUpdateTemplate ) VULKAN_HPP_NOEXCEPT
     {
       m_descriptorUpdateTemplate = descriptorUpdateTemplate;
@@ -4059,7 +4059,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Event( VkEvent event ) VULKAN_HPP_NOEXCEPT : m_event( event ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Event & operator=( VkEvent event ) VULKAN_HPP_NOEXCEPT
     {
       m_event = event;
@@ -4149,7 +4149,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     AccelerationStructureKHR & operator=( VkAccelerationStructureKHR accelerationStructureKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_accelerationStructureKHR = accelerationStructureKHR;
@@ -4236,7 +4236,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT MicromapEXT( VkMicromapEXT micromapEXT ) VULKAN_HPP_NOEXCEPT : m_micromapEXT( micromapEXT ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     MicromapEXT & operator=( VkMicromapEXT micromapEXT ) VULKAN_HPP_NOEXCEPT
     {
       m_micromapEXT = micromapEXT;
@@ -6705,7 +6705,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT DeviceMemory( VkDeviceMemory deviceMemory ) VULKAN_HPP_NOEXCEPT : m_deviceMemory( deviceMemory ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DeviceMemory & operator=( VkDeviceMemory deviceMemory ) VULKAN_HPP_NOEXCEPT
     {
       m_deviceMemory = deviceMemory;
@@ -6792,7 +6792,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT VideoSessionKHR( VkVideoSessionKHR videoSessionKHR ) VULKAN_HPP_NOEXCEPT : m_videoSessionKHR( videoSessionKHR ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     VideoSessionKHR & operator=( VkVideoSessionKHR videoSessionKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_videoSessionKHR = videoSessionKHR;
@@ -6876,7 +6876,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DeferredOperationKHR & operator=( VkDeferredOperationKHR deferredOperationKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_deferredOperationKHR = deferredOperationKHR;
@@ -6961,7 +6961,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#  if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#  if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     BufferCollectionFUCHSIA & operator=( VkBufferCollectionFUCHSIA bufferCollectionFUCHSIA ) VULKAN_HPP_NOEXCEPT
     {
       m_bufferCollectionFUCHSIA = bufferCollectionFUCHSIA;
@@ -7049,7 +7049,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT BufferView( VkBufferView bufferView ) VULKAN_HPP_NOEXCEPT : m_bufferView( bufferView ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     BufferView & operator=( VkBufferView bufferView ) VULKAN_HPP_NOEXCEPT
     {
       m_bufferView = bufferView;
@@ -7136,7 +7136,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT CommandPool( VkCommandPool commandPool ) VULKAN_HPP_NOEXCEPT : m_commandPool( commandPool ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     CommandPool & operator=( VkCommandPool commandPool ) VULKAN_HPP_NOEXCEPT
     {
       m_commandPool = commandPool;
@@ -7223,7 +7223,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT PipelineCache( VkPipelineCache pipelineCache ) VULKAN_HPP_NOEXCEPT : m_pipelineCache( pipelineCache ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     PipelineCache & operator=( VkPipelineCache pipelineCache ) VULKAN_HPP_NOEXCEPT
     {
       m_pipelineCache = pipelineCache;
@@ -7310,7 +7310,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT CuFunctionNVX( VkCuFunctionNVX cuFunctionNVX ) VULKAN_HPP_NOEXCEPT : m_cuFunctionNVX( cuFunctionNVX ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     CuFunctionNVX & operator=( VkCuFunctionNVX cuFunctionNVX ) VULKAN_HPP_NOEXCEPT
     {
       m_cuFunctionNVX = cuFunctionNVX;
@@ -7397,7 +7397,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT CuModuleNVX( VkCuModuleNVX cuModuleNVX ) VULKAN_HPP_NOEXCEPT : m_cuModuleNVX( cuModuleNVX ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     CuModuleNVX & operator=( VkCuModuleNVX cuModuleNVX ) VULKAN_HPP_NOEXCEPT
     {
       m_cuModuleNVX = cuModuleNVX;
@@ -7485,7 +7485,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT CudaFunctionNV( VkCudaFunctionNV cudaFunctionNV ) VULKAN_HPP_NOEXCEPT : m_cudaFunctionNV( cudaFunctionNV ) {}
 
-#  if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#  if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     CudaFunctionNV & operator=( VkCudaFunctionNV cudaFunctionNV ) VULKAN_HPP_NOEXCEPT
     {
       m_cudaFunctionNV = cudaFunctionNV;
@@ -7574,7 +7574,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT CudaModuleNV( VkCudaModuleNV cudaModuleNV ) VULKAN_HPP_NOEXCEPT : m_cudaModuleNV( cudaModuleNV ) {}
 
-#  if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#  if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     CudaModuleNV & operator=( VkCudaModuleNV cudaModuleNV ) VULKAN_HPP_NOEXCEPT
     {
       m_cudaModuleNV = cudaModuleNV;
@@ -7662,7 +7662,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT DescriptorPool( VkDescriptorPool descriptorPool ) VULKAN_HPP_NOEXCEPT : m_descriptorPool( descriptorPool ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DescriptorPool & operator=( VkDescriptorPool descriptorPool ) VULKAN_HPP_NOEXCEPT
     {
       m_descriptorPool = descriptorPool;
@@ -7752,7 +7752,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DescriptorSetLayout & operator=( VkDescriptorSetLayout descriptorSetLayout ) VULKAN_HPP_NOEXCEPT
     {
       m_descriptorSetLayout = descriptorSetLayout;
@@ -7839,7 +7839,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Framebuffer( VkFramebuffer framebuffer ) VULKAN_HPP_NOEXCEPT : m_framebuffer( framebuffer ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Framebuffer & operator=( VkFramebuffer framebuffer ) VULKAN_HPP_NOEXCEPT
     {
       m_framebuffer = framebuffer;
@@ -7929,7 +7929,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     IndirectCommandsLayoutNV & operator=( VkIndirectCommandsLayoutNV indirectCommandsLayoutNV ) VULKAN_HPP_NOEXCEPT
     {
       m_indirectCommandsLayoutNV = indirectCommandsLayoutNV;
@@ -8010,7 +8010,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT PrivateDataSlot( VkPrivateDataSlot privateDataSlot ) VULKAN_HPP_NOEXCEPT : m_privateDataSlot( privateDataSlot ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     PrivateDataSlot & operator=( VkPrivateDataSlot privateDataSlot ) VULKAN_HPP_NOEXCEPT
     {
       m_privateDataSlot = privateDataSlot;
@@ -8093,7 +8093,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT RenderPass( VkRenderPass renderPass ) VULKAN_HPP_NOEXCEPT : m_renderPass( renderPass ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     RenderPass & operator=( VkRenderPass renderPass ) VULKAN_HPP_NOEXCEPT
     {
       m_renderPass = renderPass;
@@ -8180,7 +8180,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Sampler( VkSampler sampler ) VULKAN_HPP_NOEXCEPT : m_sampler( sampler ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Sampler & operator=( VkSampler sampler ) VULKAN_HPP_NOEXCEPT
     {
       m_sampler = sampler;
@@ -8270,7 +8270,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     SamplerYcbcrConversion & operator=( VkSamplerYcbcrConversion samplerYcbcrConversion ) VULKAN_HPP_NOEXCEPT
     {
       m_samplerYcbcrConversion = samplerYcbcrConversion;
@@ -8359,7 +8359,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT ShaderModule( VkShaderModule shaderModule ) VULKAN_HPP_NOEXCEPT : m_shaderModule( shaderModule ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     ShaderModule & operator=( VkShaderModule shaderModule ) VULKAN_HPP_NOEXCEPT
     {
       m_shaderModule = shaderModule;
@@ -8448,7 +8448,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     ValidationCacheEXT & operator=( VkValidationCacheEXT validationCacheEXT ) VULKAN_HPP_NOEXCEPT
     {
       m_validationCacheEXT = validationCacheEXT;
@@ -8538,7 +8538,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     VideoSessionParametersKHR & operator=( VkVideoSessionParametersKHR videoSessionParametersKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_videoSessionParametersKHR = videoSessionParametersKHR;
@@ -14002,7 +14002,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT DisplayModeKHR( VkDisplayModeKHR displayModeKHR ) VULKAN_HPP_NOEXCEPT : m_displayModeKHR( displayModeKHR ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DisplayModeKHR & operator=( VkDisplayModeKHR displayModeKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_displayModeKHR = displayModeKHR;
diff --git a/vulkan/vulkan_hpp_macros.hpp b/vulkan/vulkan_hpp_macros.hpp
index 9035af1..b754679 100644
--- a/vulkan/vulkan_hpp_macros.hpp
+++ b/vulkan/vulkan_hpp_macros.hpp
@@ -88,10 +88,11 @@
 #endif
 
 // 32-bit vulkan is not typesafe for non-dispatchable handles, so don't allow copy constructors on this platform by default.
-// To enable this feature on 32-bit platforms please define VULKAN_HPP_TYPESAFE_CONVERSION
+// To enable this feature on 32-bit platforms please #define VULKAN_HPP_TYPESAFE_CONVERSION 1
+// To disable this feature on 64-bit platforms please #define VULKAN_HPP_TYPESAFE_CONVERSION 0
 #if ( VK_USE_64_BIT_PTR_DEFINES == 1 )
 #  if !defined( VULKAN_HPP_TYPESAFE_CONVERSION )
-#    define VULKAN_HPP_TYPESAFE_CONVERSION
+#    define VULKAN_HPP_TYPESAFE_CONVERSION 1
 #  endif
 #endif
 
@@ -131,7 +132,7 @@
 #  endif
 #endif
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
 #  define VULKAN_HPP_TYPESAFE_EXPLICIT
 #else
 #  define VULKAN_HPP_TYPESAFE_EXPLICIT explicit
diff --git a/vulkan/vulkansc_handles.hpp b/vulkan/vulkansc_handles.hpp
index cbd0704..fa299c2 100644
--- a/vulkan/vulkansc_handles.hpp
+++ b/vulkan/vulkansc_handles.hpp
@@ -1028,7 +1028,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DebugUtilsMessengerEXT & operator=( VkDebugUtilsMessengerEXT debugUtilsMessengerEXT ) VULKAN_HPP_NOEXCEPT
     {
       m_debugUtilsMessengerEXT = debugUtilsMessengerEXT;
@@ -1109,7 +1109,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT SurfaceKHR( VkSurfaceKHR surfaceKHR ) VULKAN_HPP_NOEXCEPT : m_surfaceKHR( surfaceKHR ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     SurfaceKHR & operator=( VkSurfaceKHR surfaceKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_surfaceKHR = surfaceKHR;
@@ -1196,7 +1196,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT SwapchainKHR( VkSwapchainKHR swapchainKHR ) VULKAN_HPP_NOEXCEPT : m_swapchainKHR( swapchainKHR ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     SwapchainKHR & operator=( VkSwapchainKHR swapchainKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_swapchainKHR = swapchainKHR;
@@ -1283,7 +1283,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Semaphore( VkSemaphore semaphore ) VULKAN_HPP_NOEXCEPT : m_semaphore( semaphore ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Semaphore & operator=( VkSemaphore semaphore ) VULKAN_HPP_NOEXCEPT
     {
       m_semaphore = semaphore;
@@ -1370,7 +1370,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Fence( VkFence fence ) VULKAN_HPP_NOEXCEPT : m_fence( fence ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Fence & operator=( VkFence fence ) VULKAN_HPP_NOEXCEPT
     {
       m_fence = fence;
@@ -1457,7 +1457,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT QueryPool( VkQueryPool queryPool ) VULKAN_HPP_NOEXCEPT : m_queryPool( queryPool ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     QueryPool & operator=( VkQueryPool queryPool ) VULKAN_HPP_NOEXCEPT
     {
       m_queryPool = queryPool;
@@ -1544,7 +1544,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT PipelineLayout( VkPipelineLayout pipelineLayout ) VULKAN_HPP_NOEXCEPT : m_pipelineLayout( pipelineLayout ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     PipelineLayout & operator=( VkPipelineLayout pipelineLayout ) VULKAN_HPP_NOEXCEPT
     {
       m_pipelineLayout = pipelineLayout;
@@ -1631,7 +1631,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT DescriptorSet( VkDescriptorSet descriptorSet ) VULKAN_HPP_NOEXCEPT : m_descriptorSet( descriptorSet ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DescriptorSet & operator=( VkDescriptorSet descriptorSet ) VULKAN_HPP_NOEXCEPT
     {
       m_descriptorSet = descriptorSet;
@@ -1718,7 +1718,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Buffer( VkBuffer buffer ) VULKAN_HPP_NOEXCEPT : m_buffer( buffer ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Buffer & operator=( VkBuffer buffer ) VULKAN_HPP_NOEXCEPT
     {
       m_buffer = buffer;
@@ -1805,7 +1805,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Pipeline( VkPipeline pipeline ) VULKAN_HPP_NOEXCEPT : m_pipeline( pipeline ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Pipeline & operator=( VkPipeline pipeline ) VULKAN_HPP_NOEXCEPT
     {
       m_pipeline = pipeline;
@@ -1892,7 +1892,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Image( VkImage image ) VULKAN_HPP_NOEXCEPT : m_image( image ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Image & operator=( VkImage image ) VULKAN_HPP_NOEXCEPT
     {
       m_image = image;
@@ -1979,7 +1979,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Event( VkEvent event ) VULKAN_HPP_NOEXCEPT : m_event( event ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Event & operator=( VkEvent event ) VULKAN_HPP_NOEXCEPT
     {
       m_event = event;
@@ -3204,7 +3204,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT DeviceMemory( VkDeviceMemory deviceMemory ) VULKAN_HPP_NOEXCEPT : m_deviceMemory( deviceMemory ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DeviceMemory & operator=( VkDeviceMemory deviceMemory ) VULKAN_HPP_NOEXCEPT
     {
       m_deviceMemory = deviceMemory;
@@ -3291,7 +3291,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT BufferView( VkBufferView bufferView ) VULKAN_HPP_NOEXCEPT : m_bufferView( bufferView ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     BufferView & operator=( VkBufferView bufferView ) VULKAN_HPP_NOEXCEPT
     {
       m_bufferView = bufferView;
@@ -3378,7 +3378,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT CommandPool( VkCommandPool commandPool ) VULKAN_HPP_NOEXCEPT : m_commandPool( commandPool ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     CommandPool & operator=( VkCommandPool commandPool ) VULKAN_HPP_NOEXCEPT
     {
       m_commandPool = commandPool;
@@ -3465,7 +3465,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT PipelineCache( VkPipelineCache pipelineCache ) VULKAN_HPP_NOEXCEPT : m_pipelineCache( pipelineCache ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     PipelineCache & operator=( VkPipelineCache pipelineCache ) VULKAN_HPP_NOEXCEPT
     {
       m_pipelineCache = pipelineCache;
@@ -3552,7 +3552,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT DescriptorPool( VkDescriptorPool descriptorPool ) VULKAN_HPP_NOEXCEPT : m_descriptorPool( descriptorPool ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DescriptorPool & operator=( VkDescriptorPool descriptorPool ) VULKAN_HPP_NOEXCEPT
     {
       m_descriptorPool = descriptorPool;
@@ -3642,7 +3642,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DescriptorSetLayout & operator=( VkDescriptorSetLayout descriptorSetLayout ) VULKAN_HPP_NOEXCEPT
     {
       m_descriptorSetLayout = descriptorSetLayout;
@@ -3729,7 +3729,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Framebuffer( VkFramebuffer framebuffer ) VULKAN_HPP_NOEXCEPT : m_framebuffer( framebuffer ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Framebuffer & operator=( VkFramebuffer framebuffer ) VULKAN_HPP_NOEXCEPT
     {
       m_framebuffer = framebuffer;
@@ -3816,7 +3816,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT ImageView( VkImageView imageView ) VULKAN_HPP_NOEXCEPT : m_imageView( imageView ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     ImageView & operator=( VkImageView imageView ) VULKAN_HPP_NOEXCEPT
     {
       m_imageView = imageView;
@@ -3903,7 +3903,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT PrivateDataSlot( VkPrivateDataSlot privateDataSlot ) VULKAN_HPP_NOEXCEPT : m_privateDataSlot( privateDataSlot ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     PrivateDataSlot & operator=( VkPrivateDataSlot privateDataSlot ) VULKAN_HPP_NOEXCEPT
     {
       m_privateDataSlot = privateDataSlot;
@@ -3986,7 +3986,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT RenderPass( VkRenderPass renderPass ) VULKAN_HPP_NOEXCEPT : m_renderPass( renderPass ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     RenderPass & operator=( VkRenderPass renderPass ) VULKAN_HPP_NOEXCEPT
     {
       m_renderPass = renderPass;
@@ -4073,7 +4073,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT Sampler( VkSampler sampler ) VULKAN_HPP_NOEXCEPT : m_sampler( sampler ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     Sampler & operator=( VkSampler sampler ) VULKAN_HPP_NOEXCEPT
     {
       m_sampler = sampler;
@@ -4163,7 +4163,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     SamplerYcbcrConversion & operator=( VkSamplerYcbcrConversion samplerYcbcrConversion ) VULKAN_HPP_NOEXCEPT
     {
       m_samplerYcbcrConversion = samplerYcbcrConversion;
@@ -4250,7 +4250,7 @@ namespace VULKAN_HPP_NAMESPACE
     {
     }
 
-#  if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#  if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     SemaphoreSciSyncPoolNV & operator=( VkSemaphoreSciSyncPoolNV semaphoreSciSyncPoolNV ) VULKAN_HPP_NOEXCEPT
     {
       m_semaphoreSciSyncPoolNV = semaphoreSciSyncPoolNV;
@@ -4332,7 +4332,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT DisplayKHR( VkDisplayKHR displayKHR ) VULKAN_HPP_NOEXCEPT : m_displayKHR( displayKHR ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DisplayKHR & operator=( VkDisplayKHR displayKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_displayKHR = displayKHR;
@@ -6750,7 +6750,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT DisplayModeKHR( VkDisplayModeKHR displayModeKHR ) VULKAN_HPP_NOEXCEPT : m_displayModeKHR( displayModeKHR ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     DisplayModeKHR & operator=( VkDisplayModeKHR displayModeKHR ) VULKAN_HPP_NOEXCEPT
     {
       m_displayModeKHR = displayModeKHR;
@@ -8029,7 +8029,7 @@ namespace VULKAN_HPP_NAMESPACE
 
     VULKAN_HPP_TYPESAFE_EXPLICIT ShaderModule( VkShaderModule shaderModule ) VULKAN_HPP_NOEXCEPT : m_shaderModule( shaderModule ) {}
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
     ShaderModule & operator=( VkShaderModule shaderModule ) VULKAN_HPP_NOEXCEPT
     {
       m_shaderModule = shaderModule;
diff --git a/vulkan/vulkansc_hpp_macros.hpp b/vulkan/vulkansc_hpp_macros.hpp
index 66917d4..9d0e403 100644
--- a/vulkan/vulkansc_hpp_macros.hpp
+++ b/vulkan/vulkansc_hpp_macros.hpp
@@ -88,10 +88,11 @@
 #endif
 
 // 32-bit vulkan is not typesafe for non-dispatchable handles, so don't allow copy constructors on this platform by default.
-// To enable this feature on 32-bit platforms please define VULKAN_HPP_TYPESAFE_CONVERSION
+// To enable this feature on 32-bit platforms please #define VULKAN_HPP_TYPESAFE_CONVERSION 1
+// To disable this feature on 64-bit platforms please #define VULKAN_HPP_TYPESAFE_CONVERSION 0
 #if ( VK_USE_64_BIT_PTR_DEFINES == 1 )
 #  if !defined( VULKAN_HPP_TYPESAFE_CONVERSION )
-#    define VULKAN_HPP_TYPESAFE_CONVERSION
+#    define VULKAN_HPP_TYPESAFE_CONVERSION 1
 #  endif
 #endif
 
@@ -131,7 +132,7 @@
 #  endif
 #endif
 
-#if defined( VULKAN_HPP_TYPESAFE_CONVERSION )
+#if ( VULKAN_HPP_TYPESAFE_CONVERSION == 1 )
 #  define VULKAN_HPP_TYPESAFE_EXPLICIT
 #else
 #  define VULKAN_HPP_TYPESAFE_EXPLICIT explicit