24         std::ostringstream ss(" 123 456");  in main()  local
25         assert(ss.rdbuf() != 0);  in main()
26         assert(ss.good());  in main()
27         assert(ss.str() == " 123 456");  in main()
29         ss << i << ' ' << 567;;  in main()
30         assert(ss.str() == "234 5676");  in main()
33         std::ostringstream ss(" 123 456", std::ios_base::in);  in main()  local
34         assert(ss.rdbuf() != 0);  in main()
35         assert(ss.good());  in main()
36         assert(ss.str() == " 123 456");  in main()
38         ss << i << ' ' << 567;;  in main()
39         assert(ss.str() == "234 5676");  in main()
42         std::wostringstream ss(L" 123 456");  in main()  local
43         assert(ss.rdbuf() != 0);  in main()
44         assert(ss.good());  in main()
45         assert(ss.str() == L" 123 456");  in main()
47         ss << i << ' ' << 567;;  in main()
48         assert(ss.str() == L"234 5676");  in main()
51         std::wostringstream ss(L" 123 456", std::ios_base::in);  in main()  local
52         assert(ss.rdbuf() != 0);  in main()
53         assert(ss.good());  in main()
54         assert(ss.str() == L" 123 456");  in main()
56         ss << i << ' ' << 567;;  in main()
57         assert(ss.str() == L"234 5676");  in main()