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Annotation of 43BSD/ucb/pascal/pdx/tree/tree.rep, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)tree.rep    5.2 (Berkeley) 6/7/85
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * representation of a parse tree
        !            11:  *
        !            12:  * This should have a union in it, but unions just don't
        !            13:  * seem to work right in C.  I don't want to have to specify an
        !            14:  * extra level of referencing, e.g. a.b.c, because there's really
        !            15:  * only one level there.
        !            16:  */
        !            17: 
        !            18: struct node {
        !            19:        OP op;
        !            20:        SYM *nodetype;
        !            21:        NODE *left, *right;
        !            22:        SYM *nameval;
        !            23:        long lconval;
        !            24:        double fconval;
        !            25:        char *sconval;
        !            26:        NODE *what, *where, *cond;
        !            27: };

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