for _, v := range vals {
		if len(v.s) != 1 {
			t.Errorf("len(v.s) == %d, want 1", len(v.s))
		}
	}
}

func computeHash() uintptr {
	var v struct{}
	return runtime.MemHash(unsafe.Pointer(&v), 0, unsafe.Sizeof(v))
}

func subprocessHash(t *testing.T, env string) uintptr {
	t.Helper()

	cmd := testenv.CleanCmdEnv(testenv.Command(t, os.Args[0], "-test.run=^TestMemHashGlobalSeed$"))