func main() {
var stack *MyStack.Stack = MyStack.NewStack()
stack.InitStack(10)
inputReader := bufio.NewReader(os.Stdin)
compute(stack, inputReader)
return
}
func compute(s *MyStack.Stack, r *bufio.Reader) {
var x, y, z int
for {
input, err := r.ReadString('\n')
if err != nil {
fmt.Println("Errore in lettura input.\n")
return
}
switch input {
case "+\n":
x, err = s.Pop()
y, err = s.Pop()
z = y + x
s.Push(x)
fmt.Printf("%d + %d = %d\n", y, x, z)
case "-\n":
x, err = s.Pop()
y, err = s.Pop()
z = y - x
s.Push(x)
fmt.Printf("%d - %d = %d\n", y, x, z)
case "*\n":
x, err = s.Pop()
y, err = s.Pop()
z = y * x
s.Push(x)
fmt.Printf("%d * %d = %d\n", y, x, z)
case "/\n":
x, err = s.Pop()
y, err = s.Pop()
z = y / x
s.Push(x)
fmt.Printf("%d / %d = %d\n", y, x, z)
case "q\n":
return
default:
i, err := strconv.Atoi(input[0 : len(input)-1])
if err != nil {
fmt.Printf("Comando non conosciuto\n")
} else {
s.Push(i)
}
}
}
}