they both have the same size, eg. following structs bar and bar2 both take
16 bytes memory on a x64 machine.
package main
import (
"fmt"
"unsafe"
)
type bar struct {
A int
_ bool
}
type bar2 struct {
A int
_ [0]byte
}
func main() {
bar := bar{}
bar2 := bar2{}
fmt.Printf("size of bar:%v\n", unsafe.Sizeof(bar))
fmt.Printf("size of bar2:%v\n", unsafe.Sizeof(bar2))
}
On Thursday, July 6, 2017 at 11:45:30 AM UTC+8, kortschak wrote:
>
> On Wed, 2017-07-05 at 17:26 -0700, rsr via golang-nuts wrote:
> > type bar struct {
> > A int
> > _ bool
> > }
>
>
> or `type bar struct { A int; _ [0]byte }` to avoid the additional byte
> use.
>
>
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