FUNCTION Start() AS VOID
LOCAL d AS DWORD
LOCAL n AS INT
d := UInt32.MaxValue
? "Initial value of d:", d
BEGIN UNCHECKED
// arithmetic operations inside an UNCHECKED block will not produce
// overflow exceptions on arithmetic conversions and operations,
// no matter if overflow checking is enabled application-wide or not
n := (INT)d
? "Value of n after conversion:", n
d ++
? "Value of d after increasing it:", d
END UNCHECKED
d := UInt32.MaxValue
BEGIN CHECKED
// arithmetic operations inside a CHECKED block always do
// overflow checking and throw exceptions if overflow is detected
TRY
n := (INT)d
d ++
CATCH e AS Exception
? "Exception thrown in CHECKED operation:", e:Message
END TRY
END CHECKED
Console.ReadLine()
RETURN
