go pointer

go pointer

package main

import "fmt"

type Mutatable struct {
    a int
    b int
}

func (m Mutatable) StayTheSame() {
    m.a =
    m.b =
}

func (m *Mutatable) Mutate() {
    m.a =
    m.b =
}

func main() {
    m := &Mutatable{, }
    fmt.Println(m)
    m.StayTheSame()
    fmt.Println(m)
    m.Mutate()
    fmt.Println(m)
}

&{0 0}

&{0 0}

&{5 7}