typedef union {
        char *data;
        double number;
	void *n; /* tree node */
       } YYSTYPE;
#define	T_NUMBER	257
#define	T_IDENTIFIER	258
#define	T_DATA	259
#define	T_LOR	260
#define	T_LAND	261
#define	T_OR	262
#define	T_AND	263
#define	T_EQ	264
#define	T_NE	265
#define	T_LT	266
#define	T_LE	267
#define	T_GT	268
#define	T_GE	269
#define	T_ADD	270
#define	T_SUBTRACT	271
#define	T_MULTIPLY	272
#define	T_DIVIDE	273
#define	T_MOD	274
#define	T_NOT	275
#define	U_SUBTRACT	276
#define	T_EXP	277


extern YYSTYPE yylval;
