25         std::ostringstream ss(" 123 456");  in main()  local
26         assert(ss.rdbuf() != 0);  in main()
27         assert(ss.good());  in main()
28         assert(ss.str() == " 123 456");  in main()
30         ss << i << ' ' << 567;  in main()
31         assert(ss.str() == "234 5676");  in main()
34         std::ostringstream ss(" 123 456", std::ios_base::in);  in main()  local
35         assert(ss.rdbuf() != 0);  in main()
36         assert(ss.good());  in main()
37         assert(ss.str() == " 123 456");  in main()
39         ss << i << ' ' << 567;  in main()
40         assert(ss.str() == "234 5676");  in main()
44         std::wostringstream ss(L" 123 456");  in main()  local
45         assert(ss.rdbuf() != 0);  in main()
46         assert(ss.good());  in main()
47         assert(ss.str() == L" 123 456");  in main()
49         ss << i << ' ' << 567;  in main()
50         assert(ss.str() == L"234 5676");  in main()
53         std::wostringstream ss(L" 123 456", std::ios_base::in);  in main()  local
54         assert(ss.rdbuf() != 0);  in main()
55         assert(ss.good());  in main()
56         assert(ss.str() == L" 123 456");  in main()
58         ss << i << ' ' << 567;  in main()
59         assert(ss.str() == L"234 5676");  in main()