macro: add min() macro

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
lxc · Feb 23, 2021 · a1feaf2 · a1feaf2
1 parent 2092492
commit a1feaf2
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/lxc/macro.h b/src/lxc/macro.h
@@ -737,4 +737,12 @@ static inline int PTR_RET(const void *ptr)
 		return 0;
 }
 
+#define min(x, y)                              \
+	({                                     \
+		typeof(x) _min1 = (x);         \
+		typeof(y) _min2 = (y);         \
+		(void)(&_min1 == &_min2);      \
+		_min1 < _min2 ? _min1 : _min2; \
+	})
+
 #endif /* __LXC_MACRO_H */