25         std::fstream fs;  in main()  local
26         assert(!fs.is_open());  in main()
27         fs.open(temp, std::ios_base::in | std::ios_base::out  in main()
29         assert(fs.is_open());  in main()
31         fs << 3.25;  in main()
32         fs.seekg(0);  in main()
33         fs >> x;  in main()
40         std::wfstream fs;  in main()  local
41         assert(!fs.is_open());  in main()
42         fs.open(temp, std::ios_base::in | std::ios_base::out  in main()
44         assert(fs.is_open());  in main()
46         fs << 3.25;  in main()
47         fs.seekg(0);  in main()
48         fs >> x;  in main()