* [email protected] <[email protected]> [190403 05:10]:
> package main
>
> func main() {
> b := []int{1}
>
> bb := make([]*int, 0, 1)
> for k, v := range b {
The above range clause will assign to k the index of the current
element, and it will assign to v a copy (as if v = b[k]) of the element
at that index.
Go does not have references of the kind that C++ or Java has, so v
cannot be a reference, in that sense, to b[k]; it must be a value copy.
If what you really want is to be able to refer to the location of the
element in the slice (really its backing array), omit the v in the range
clause and just use &b[k]:
for k := range b {
_ = &b[k] // do what you want
}
> _ = &v //8 line
> _ = &b[k] //9 line
> // bb = append(bb, &v)
> bb = append(bb, &b[k])
> }
>
> // for _, v := range bb {
> // fmt.Println(*v)
> // }
> }
...Marvin
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