pass_ptr.go

package main

import "fmt"

type Foo struct {
	a int32
	b int32
	c int32
	d int32
}

var foo = Foo{1, 2, 3, 4}

func main() {
	var ptr *Foo = &foo // Assign foo's address to ptr

	passByRef(ptr) // Only has to pass foo's address
}

func passByRef(ptr *Foo) {
	fmt.Printf("%+v\n", *ptr) // dereference to foo
}