golang-struct-copy-is-memory-copy

golang-struct-copy-is-memory-copy.go

package main

import (
        "fmt"
)

type A struct {
        S1 string
}

type B struct {
        Apt *A
        S2  string
}

func main() {
        b1 := B{Apt: &A{S1: "hi"}, S2: "h2"}
        b2 := b1
        b2.Apt.S1 = "haha"
        b2.S2 = "ha2"
        fmt.Println(b1, b2, b1.Apt, b2.Apt)
}

// https://play.golang.org/p/UhdzGKz-s0