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48 lines
682 B

package main
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import "fmt"
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const (
CLOSE = iota
OPEN
)
type Door struct {
State int
}
func CloseDoor(ptrDoor *Door) {
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fmt.Println("Door Closing...")
ptrDoor.State = CLOSE
}
func OpenDoor(ptrdoor *Door) {
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fmt.Println("Door Opening...")
ptrdoor.State = OPEN
}
func IsDoorOpened(ptrDoor *Door) bool {
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fmt.Println("is the Door opened ?")
return ptrDoor.State == OPEN
}
func IsDoorClosed(ptrDoor *Door) bool {
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fmt.Println("is the Door closed ?")
return ptrDoor.State == CLOSE
}
func main() {
var door Door
OpenDoor(&door)
if IsDoorClosed(&door) {
OpenDoor(&door)
}
if IsDoorOpened(&door) {
CloseDoor(&door)
}
if door.State == OPEN {
CloseDoor(&door)
}
}