+#if defined(_MSC_EXTENSIONS)\r
+//\r
+// Disable warning when last field of data structure is a zero sized array.\r
+//\r
+#pragma warning ( disable : 4200 )\r
+#endif\r
+\r
+//\r
+// The Microsoft* C compiler can removed references to unreferenced data items\r
+// if the /OPT:REF linker option is used. We defined a macro as this is a\r
+// a non standard extension\r
+//\r
+#if defined(_MSC_EXTENSIONS) && _MSC_VER < 1800 && !defined (MDE_CPU_EBC)\r
+ ///\r
+ /// Remove global variable from the linked image if there are no references to\r
+ /// it after all compiler and linker optimizations have been performed.\r
+ ///\r
+ ///\r
+ #define GLOBAL_REMOVE_IF_UNREFERENCED __declspec(selectany)\r
+#else\r
+ ///\r
+ /// Remove the global variable from the linked image if there are no references\r
+ /// to it after all compiler and linker optimizations have been performed.\r
+ ///\r
+ ///\r
+ #define GLOBAL_REMOVE_IF_UNREFERENCED\r
+#endif\r
+\r
+//\r
+// Should be used in combination with NORETURN to avoid 'noreturn' returns\r
+// warnings.\r
+//\r
+#ifndef UNREACHABLE\r
+ #ifdef __GNUC__\r
+ ///\r
+ /// Signal compilers and analyzers that this call is not reachable. It is\r
+ /// up to the compiler to remove any code past that point.\r
+ ///\r
+ #define UNREACHABLE() __builtin_unreachable ()\r
+ #elif defined (__has_feature)\r
+ #if __has_builtin (__builtin_unreachable)\r
+ ///\r
+ /// Signal compilers and analyzers that this call is not reachable. It is\r
+ /// up to the compiler to remove any code past that point.\r
+ ///\r
+ #define UNREACHABLE() __builtin_unreachable ()\r
+ #endif\r
+ #endif\r
+\r
+ #ifndef UNREACHABLE\r
+ ///\r
+ /// Signal compilers and analyzers that this call is not reachable. It is\r
+ /// up to the compiler to remove any code past that point.\r
+ ///\r
+ #define UNREACHABLE()\r
+ #endif\r
+#endif\r
+\r
+//\r
+// Signaling compilers and analyzers that a certain function cannot return may\r
+// remove all following code and thus lead to better optimization and less\r
+// false positives.\r
+//\r
+#ifndef NORETURN\r
+ #if defined (__GNUC__) || defined (__clang__)\r
+ ///\r
+ /// Signal compilers and analyzers that the function cannot return.\r
+ /// It is up to the compiler to remove any code past a call to functions\r
+ /// flagged with this attribute.\r
+ ///\r
+ #define NORETURN __attribute__((noreturn))\r
+ #elif defined(_MSC_EXTENSIONS) && !defined(MDE_CPU_EBC)\r
+ ///\r
+ /// Signal compilers and analyzers that the function cannot return.\r
+ /// It is up to the compiler to remove any code past a call to functions\r
+ /// flagged with this attribute.\r
+ ///\r
+ #define NORETURN __declspec(noreturn)\r
+ #else\r
+ ///\r
+ /// Signal compilers and analyzers that the function cannot return.\r
+ /// It is up to the compiler to remove any code past a call to functions\r
+ /// flagged with this attribute.\r
+ ///\r
+ #define NORETURN\r
+ #endif\r
+#endif\r
+\r
+//\r
+// Should be used in combination with ANALYZER_NORETURN to avoid 'noreturn'\r
+// returns warnings.\r
+//\r
+#ifndef ANALYZER_UNREACHABLE\r
+ #ifdef __clang_analyzer__\r
+ #if __has_builtin (__builtin_unreachable)\r
+ ///\r
+ /// Signal the analyzer that this call is not reachable.\r
+ /// This excludes compilers.\r
+ ///\r
+ #define ANALYZER_UNREACHABLE() __builtin_unreachable ()\r
+ #endif\r
+ #endif\r
+\r
+ #ifndef ANALYZER_UNREACHABLE\r
+ ///\r
+ /// Signal the analyzer that this call is not reachable.\r
+ /// This excludes compilers.\r
+ ///\r
+ #define ANALYZER_UNREACHABLE()\r
+ #endif\r
+#endif\r
+\r
+//\r
+// Static Analyzers may issue errors about potential NULL-dereferences when\r
+// dereferencing a pointer, that has been checked before, outside of a\r
+// NULL-check. This may lead to false positives, such as when using ASSERT()\r
+// for verification.\r
+//\r
+#ifndef ANALYZER_NORETURN\r
+ #ifdef __has_feature\r
+ #if __has_feature (attribute_analyzer_noreturn)\r
+ ///\r
+ /// Signal analyzers that the function cannot return.\r
+ /// This excludes compilers.\r
+ ///\r
+ #define ANALYZER_NORETURN __attribute__((analyzer_noreturn))\r
+ #endif\r
+ #endif\r
+\r
+ #ifndef ANALYZER_NORETURN\r
+ ///\r
+ /// Signal the analyzer that the function cannot return.\r
+ /// This excludes compilers.\r
+ ///\r
+ #define ANALYZER_NORETURN\r
+ #endif\r
+#endif\r
+\r