Define __UNREACHABLE for MSVC

An implementation may use this to optimize impossible code branches away, typically, in optimized builds.
sysprog21 · Oct 5, 2023 · 3a113f7 · 3a113f7
1 parent 2672969
commit 3a113f7
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/common.h b/src/common.h
@@ -61,6 +61,8 @@
  */
 #if defined(__GNUC__) || defined(__clang__)
 #define __UNREACHABLE __builtin_unreachable()
+#elif defined(_MSC_VER)
+#define __UNREACHABLE __assume(false)
 #else /* unspported compilers */
 /* clang-format off */
 #define __UNREACHABLE do { /* nop */ } while (0)