+#define _disused \
+ __attribute__((unused))
+
+#define _label__(x) _label ## x
+#define _label_(y) _label__(y)
+#define _label _label_(__LINE__)
+
+#define _packed \
+ __attribute__((packed))
+
+#ifdef __cplusplus
+
+template <typename Type_>
+struct Iterator_ {
+ typedef typename Type_::const_iterator Result;
+};
+
+#define _foreach(item, list) \
+ for (bool _stop(true); _stop; ) \
+ for (const __typeof__(list) &_list = (list); _stop; _stop = false) \
+ for (Iterator_<__typeof__(list)>::Result item = _list.begin(); item != _list.end(); ++item)
+
+#endif
+
+#include <errno.h>