[Go] Type assertion with switch statement.

package main

import (
    "fmt"
)

func main() {
    var t interface{}
    t = 3
    switch t := t.(type) {
    default:
        fmt.Printf("unexpected type %T\n", t) // %T prints whatever type t has
    case bool:
        fmt.Printf("boolean %t\n", t) // t has type bool
    case int:
        fmt.Printf("integer %d\n", t) // t has type int
    case *bool:
        fmt.Printf("pointer to boolean %t\n", *t) // t has type *bool
    case *int:
        fmt.Printf("pointer to integer %d\n", *t) // t has type *int
    }
}