Go中切片的最大长度

根据文档，

The elements can be addressed by integer indices 0 throughlen(s)-1

编辑：从源代码看，似乎有一个安全检查，以确保这种大小的切片是完全可能的：

func makeslice(t *slicetype, len64 int64, cap64 int64) sliceStruct {    // NOTE: The len > MaxMem/elemsize check here is not strictly necessary,    // but it produces a 'len out of range' error instead of a 'cap out of range' error    // when someone does make([]T, bignumber). 'cap out of range' is true too,    // but since the cap is only being supplied implicitly, saying len is clearer.    // See issue 4085.    len := int(len64)    if len64 < 0 || int64(len) != len64 || t.elem.size > 0 && uintptr(len) > maxmem/uintptr(t.elem.size) {        panic(errorString("makeslice: len out of range"))    }

因此，在这种情况下，看起来

uintptr(len) > maxmem/uintptr(t.elem.size)

但是，当我分配

struct{}

func main(){    r := make([]struct{}, math.MaxInt64)    fmt.Println(len(r))}// prints 9223372036854775807