break
		}
		name := c.Ident("_Ctype_" + dt.Name)
		goIdent[name.Name] = name
		akey := ""
		if c.anonymousStructTypedef(dt) {
			// only load type recursively for typedefs of anonymous
			// structs, see issues 37479 and 37621.
			akey = key
		}
		sub := c.loadType(dt.Type, pos, akey)
		if c.badPointerTypedef(dt) {
			// Treat this typedef as a uintptr.
			s := *sub
			s.Go = c.uintptr

	}
}

func BenchmarkIndexPeriodic(b *testing.B) {
	key := []byte{1, 1}
	for _, skip := range [...]int{2, 4, 8, 16, 32, 64} {
		b.Run(fmt.Sprintf("IndexPeriodic%d", skip), func(b *testing.B) {
			buf := make([]byte, 1<<16)
			for i := 0; i < len(buf); i += skip {
				buf[i] = 1
			}
			for i := 0; i < b.N; i++ {
				Index(buf, key)
			}
		})
	}
}

func TestClone(t *testing.T) {