/*------------------------------------------------------------------------- * * 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: /usr/local/cvsroot/pgsql/src/backend/nodes/nodes.c,v 1.7 1999/02/13 23:15:59 momjian Exp $ * * HISTORY * Andrew Yu Oct 20, 1994 file creation * *------------------------------------------------------------------------- */ #include #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; }
