/* EXPR1.H */

#ifndef EXPR_H
#define EXPR_H

#include "stdafx.h"

enum ExprEnum
{
	NoExpr,
	AddExpr,
	SubExpr
};

struct Expr
{
	ExprEnum tag;
	Expr * left;
	Expr * right;

	Expr () :
	  tag (NoExpr),
  	  left (NULL),
	  right (NULL)
	{ }
};

Expr * expression (void);

#endif