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;  in main()
30         assert(ss.str() == "0123 456");  in main()
31         ss << 456;  in main()
32         assert(ss.str() == "0456 456");  in main()
33         ss.str(" 789");  in main()
34         assert(ss.str() == " 789");  in main()
35         ss << "abc";  in main()
36         assert(ss.str() == "abc9");  in main()
40         std::wostringstream ss(L" 123 456");  in main()  local
41         assert(ss.rdbuf() != 0);  in main()
42         assert(ss.good());  in main()
43         assert(ss.str() == L" 123 456");  in main()
45         ss << i;  in main()
46         assert(ss.str() == L"0123 456");  in main()
47         ss << 456;  in main()
48         assert(ss.str() == L"0456 456");  in main()
49         ss.str(L" 789");  in main()
50         assert(ss.str() == L" 789");  in main()
51         ss << L"abc";  in main()
52         assert(ss.str() == L"abc9");  in main()