I'm trying to add a pointer to a struct to a slice, but I can't get rid of this error:
cannot use NewDog() (type *Dog) as type *Animal in append:
*Animal is pointer to interface, not interface
How can I avoid this error? (while still using pointers)
package main
import "fmt"
type Animal interface {
Speak()
}
type Dog struct {
}
func (d *Dog) Speak() {
fmt.Println("Ruff!")
}
func NewDog() *Dog {
return &Dog{}
}
func main() {
pets := make([]*Animal, 2)
pets[0] = NewDog()
(*pets[0]).Speak()
}