void leeT1 (char * dir, char * nf, char *** pt0, int * pnl) ;

void leeT2 (char * dir, char * nf, char *** pt0, char *** pt1, int * pnl) ;

void leeT3 (char * dir, char * nf,
		char *** pt0, char *** pt1, char *** pt2, int * pnl) ;


int asocT1 (char * nm0, char ** t0, int nl) ;

//         nm0 entrada, nm1 salida
int asocT2 (char * nm0, char * nm1, char ** t0, char ** t1, int nl) ;

//         nm0 entrada, nm1 y nm2 salidas
int asocT3 (char * nm0, char * nm1, char * nm2,
		char ** t0, char ** t1, char ** t2, int nl) ;