for i := range &array

[Vadim Maximov]

Hi, all!

Is for...range over an address/reference of  an array faster than regular for...range? For instance:

arr :=[...]int{1,2,3}
for _,v := range &arr{
   fmt.Println(v)
}

I heard that it  is slightly faster for huge arrays, but why is it so? And is it actually true (or makes sense)?

[Jan Mercl]

One ranges a copy of the array, the other does not: https://play.golang.org/p/Z3InmyFqQN3

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