1/*- 2 * Copyright (c) 1982, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)tree.rep 8.1 (Berkeley) 06/06/93 8 */ 9 10/* 11 * representation of a parse tree 12 * 13 * This should have a union in it, but unions just don't 14 * seem to work right in C. I don't want to have to specify an 15 * extra level of referencing, e.g. a.b.c, because there's really 16 * only one level there. 17 */ 18 19struct node { 20 OP op; 21 SYM *nodetype; 22 NODE *left, *right; 23 SYM *nameval; 24 long lconval; 25 double fconval; 26 char *sconval; 27 NODE *what, *where, *cond; 28}; 29