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-rw-r--r--src/fcint.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/fcint.h b/src/fcint.h
index fb173b5..a3b192d 100644
--- a/src/fcint.h
+++ b/src/fcint.h
@@ -61,8 +61,8 @@
#define FC_LIKELY(expr) (expr)
#define FC_UNLIKELY(expr) (expr)
#else
-#define FC_LIKELY(expr) (__builtin_expect (expr, 1))
-#define FC_UNLIKELY(expr) (__builtin_expect (expr, 0))
+#define FC_LIKELY(expr) (__builtin_expect (((expr) ? 1 : 0), 1))
+#define FC_UNLIKELY(expr) (__builtin_expect (((expr) ? 1 : 0), 0))
#endif
#ifdef _WIN32