40     std::ofstream stream(p);  in main()  local
41     stream << 3.25;  in main()
44     std::ifstream stream(p);  in main()  local
46     stream >> x;  in main()
50     std::ifstream stream(p, std::ios_base::out);  in main()  local
52     stream >> x;  in main()
59     std::wofstream stream(p);  in main()  local
60     stream << 3.25;  in main()
63     std::wifstream stream(p);  in main()  local
65     stream >> x;  in main()
69     std::wifstream stream(p, std::ios_base::out);  in main()  local
71     stream >> x;  in main()