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authorMax Kellermann <max@duempel.org>2013-08-03 21:34:17 +0200
committerMax Kellermann <max@duempel.org>2013-08-03 21:34:17 +0200
commit67f591a9ce60651da41afc499bd9a22e25314e35 (patch)
tree0eeeba50880b52317f326c73587a7cb4a5c93b32 /src/gcc.h
parent105b431e4cd5416b44ed3fb68e5944ad59bd8221 (diff)
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gcc.h: add macro gcc_unreachable()
Diffstat (limited to 'src/gcc.h')
-rw-r--r--src/gcc.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/gcc.h b/src/gcc.h
index 2282ff5e6..1bd770597 100644
--- a/src/gcc.h
+++ b/src/gcc.h
@@ -79,6 +79,12 @@
#endif
+#if defined(__GNUC__) || defined(__clang__)
+#define gcc_unreachable() __builtin_unreachable()
+#else
+#define gcc_unreachable()
+#endif
+
#ifdef __cplusplus
#ifdef __GNUC__