1 files changed, 3 insertions, 0 deletions
diff --git a/src/util.h b/src/util.h
index 6d76127..2f0c8ca 100644
--- a/src/util.h
+++ b/src/util.h
@@ -10,6 +10,9 @@
 #define PANIC(...) panic(__FILE__, __LINE__, "" __VA_ARGS__)
 #define ASSERT(x) assert((x), __FILE__, __LINE__, #x)
 
+#define LINK(p) (&(p)->link)
+#define UPCAST(iter, type) LINK_UPCAST(iter, type, link)
+
 int strnwidth(const char *s, int n);
 
 void panic(const char *file, int line, const char *msg, ...);