From b063c87596f4e05e4aaac9f69541e01278920451 Mon Sep 17 00:00:00 2001
From: yang-g <yangg@google.com>
Date: Wed, 7 Oct 2015 11:40:13 -0700
Subject: mark unreachable code with a macro

---
 include/grpc/support/port_platform.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'include')

diff --git a/include/grpc/support/port_platform.h b/include/grpc/support/port_platform.h
index 434dd6de87..f98038da52 100644
--- a/include/grpc/support/port_platform.h
+++ b/include/grpc/support/port_platform.h
@@ -181,6 +181,7 @@
 #ifndef _BSD_SOURCE
 #define _BSD_SOURCE
 #endif
+#define GPR_FORBID_UNREACHABLE_CODE
 #define GPR_MSG_IOVLEN_TYPE int
 #if TARGET_OS_IPHONE
 #define GPR_PLATFORM_STRING "ios"
@@ -336,4 +337,15 @@ typedef uintptr_t gpr_uintptr;
 #endif
 #endif
 
+#ifdef GPR_FORBID_UNREACHABLE_CODE
+#define GPR_UNREACHABLE_CODE(STATEMENT)
+#else
+#define GPR_UNREACHABLE_CODE(STATEMENT)             \
+  do {                                              \
+    gpr_log(GPR_ERROR, "Should never reach here."); \
+    abort();                                        \
+    STATEMENT;                                      \
+  } while (0)
+#endif /* GPR_FORBID_UNREACHABLE_CODE */
+
 #endif /* GRPC_SUPPORT_PORT_PLATFORM_H */
-- 
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