RosettaCodeData/Task/Infinity/QBasic/infinity.basic

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DECLARE FUNCTION f! ()
ON ERROR GOTO TratoError
PRINT 0!
PRINT 0 / -1.5
PRINT 1.5 / 0
PRINT 0 / 0
PRINT f
END
TratoError:
PRINT "Error "; ERR; " on line "; ERL; CHR$(9); " --> ";
SELECT CASE ERR
CASE 6
PRINT "Overflow"
RESUME NEXT
CASE 11
PRINT "Division by zero"
RESUME NEXT
CASE ELSE
PRINT "Unexpected error, ending program."
END
END SELECT
FUNCTION f!
f! = -1.5 / 0
END FUNCTION