On Saturday, October 22, 2016 at 4:57:52 PM UTC+8, T L wrote:
>
>
> The string struct used internally is
>
> type stringStruct struct {
> str unsafe.Pointer
> len int
> }
>
> When following f function is called and s is cleared,
> how do go runtime knows the starting memory address of the old s.str is
> "a" instead of "c"?
>
I mean how do go runtime knows "abcdefg" instead of "cde" should be
released.
>
> var s = "abcdefg"[2:5] // s.str should point at "c".
>
> func f() {
> s = ""
> }
>
>
>
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