Postgres95 1.01 Distribution - Virgin Sources

src/backend/nodes/nodes.c

@@ -0,0 +1,45 @@
+/*-------------------------------------------------------------------------
+ *
+ * nodes.c--
+ *    support code for nodes (now that we get rid of the home-brew
+ *    inheritance system, our support code for nodes get much simpler)
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *    $Header: /cvsroot/pgsql/src/backend/nodes/nodes.c,v 1.1.1.1 1996/07/09 06:21:33 scrappy Exp $
+ *
+ * HISTORY
+ *    Andrew Yu		Oct 20, 1994	file creation
+ *
+ *-------------------------------------------------------------------------
+ */
+#include <string.h>
+#include "postgres.h"
+#include "utils/palloc.h"
+#include "utils/elog.h"
+#include "nodes/nodes.h"    /* where func declarations of this file goes */
+
+/*
+ * newNode -
+ *    create a new node of the specified size and tag the node with the
+ *    specified tag.
+ *
+ * !WARNING!: Avoid using newNode directly. You should be using the
+ *    macro makeNode. eg. to create a Resdom node, use makeNode(Resdom)
+ *
+ */
+Node *
+newNode(Size size, NodeTag tag)
+{
+    Node *newNode;
+    
+    Assert(size >= 4);	/* need the tag, at least */
+    
+    newNode = (Node *)palloc(size);
+    memset((char *)newNode, 0, size);
+    newNode->type = tag;
+    return(newNode);
+}
+