Make FOR_LIST_NODE and use it for FOR_CONN

diff --git a/innduct.h b/innduct.h
index ddd17e69c59050b979bec2e8c131bd4869e11221..273fb5ec7758df00f196a34dfe8580621b45c5c4 100644 (file)
--- a/innduct.h
+++ b/innduct.h
@@ -84,8 +84,10 @@
 
 #define DUMPV(fmt,pfx,v) fprintf(f, " " #v "=" fmt, pfx v);
 
-#define FOR_CONN(conn) \
-  for ((conn)=LIST_HEAD(conns); (conn); (conn)=LIST_NEXT((conn)))
+#define FOR_LIST_NODE(nodevar, list) \
+  for ((nodevar)=LIST_HEAD(list); (nodevar); (nodevar)=LIST_NEXT((nodevar)))
+
+#define FOR_CONN(conn) FOR_LIST_NODE(conn, conns)
 
 /*----- doubly linked lists -----*/