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/*-------------------------------------------------------------------------
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*
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* nodeFuncs.h
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*
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*
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: nodeFuncs.h,v 1.9 1999/07/15 15:21:17 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NODEFUNCS_H
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#define NODEFUNCS_H
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#include <nodes/primnodes.h>
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extern bool single_node(Node *node);
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extern bool var_is_outer(Var *var);
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extern bool var_is_rel(Var *var);
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extern Oper *replace_opid(Oper *oper);
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extern bool non_null(Expr *c);
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#endif /* NODEFUNCS_H */
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