# # TUCK test # # Logic: // w1 w2 -- w2 w1 w2 # FORWARD success; FORWARD failure; : try_0 0 = IF success ELSE failure ENDIF ; : try_2 2 = IF try_0 ELSE failure ENDIF ; : try_1 1 = IF try_2 ELSE failure ENDIF ; : MAIN 0 1 2 TUCK 2 = IF try_1 ELSE failure ENDIF ;