45         testbuf<char> sb("123", std::ios_base::in);  in main()  local
46         assert(sb.sgetc() == '1');  in main()
47         assert(sb.snextc() == '2');  in main()
48         assert(sb.snextc() == '3');  in main()
49         assert(sb.sgetc() == '3');  in main()
50         assert(sb.snextc() == std::char_traits<char>::eof());  in main()
51         assert(sb.pbackfail('3') == '3');  in main()
52         assert(sb.pbackfail('3') == std::char_traits<char>::eof());  in main()
53         assert(sb.pbackfail('2') == '2');  in main()
54         assert(sb.pbackfail(std::char_traits<char>::eof()) != std::char_traits<char>::eof());  in main()
55         assert(sb.pbackfail(std::char_traits<char>::eof()) == std::char_traits<char>::eof());  in main()
56         assert(sb.str() == "123");  in main()
59         testbuf<char> sb("123");  in main()  local
60         assert(sb.sgetc() == '1');  in main()
61         assert(sb.snextc() == '2');  in main()
62         assert(sb.snextc() == '3');  in main()
63         assert(sb.sgetc() == '3');  in main()
64         assert(sb.snextc() == std::char_traits<char>::eof());  in main()
65         assert(sb.pbackfail('3') == '3');  in main()
66         assert(sb.pbackfail('3') == '3');  in main()
67         assert(sb.pbackfail(std::char_traits<char>::eof()) != std::char_traits<char>::eof());  in main()
68         assert(sb.pbackfail(std::char_traits<char>::eof()) == std::char_traits<char>::eof());  in main()
69         assert(sb.str() == "133");  in main()
73         testbuf<wchar_t> sb(L"123", std::ios_base::in);  in main()  local
74         assert(sb.sgetc() == L'1');  in main()
75         assert(sb.snextc() == L'2');  in main()
76         assert(sb.snextc() == L'3');  in main()
77         assert(sb.sgetc() == L'3');  in main()
78         assert(sb.snextc() == std::char_traits<wchar_t>::eof());  in main()
79         assert(sb.pbackfail(L'3') == L'3');  in main()
80         assert(sb.pbackfail(L'3') == std::char_traits<wchar_t>::eof());  in main()
81         assert(sb.pbackfail(L'2') == L'2');  in main()
82         assert(sb.pbackfail(std::char_traits<wchar_t>::eof()) != std::char_traits<wchar_t>::eof());  in main()
83         assert(sb.pbackfail(std::char_traits<wchar_t>::eof()) == std::char_traits<wchar_t>::eof());  in main()
84         assert(sb.str() == L"123");  in main()
87         testbuf<wchar_t> sb(L"123");  in main()  local
88         assert(sb.sgetc() == L'1');  in main()
89         assert(sb.snextc() == L'2');  in main()
90         assert(sb.snextc() == L'3');  in main()
91         assert(sb.sgetc() == L'3');  in main()
92         assert(sb.snextc() == std::char_traits<wchar_t>::eof());  in main()
93         assert(sb.pbackfail(L'3') == L'3');  in main()
94         assert(sb.pbackfail(L'3') == L'3');  in main()
95         assert(sb.pbackfail(std::char_traits<wchar_t>::eof()) != std::char_traits<wchar_t>::eof());  in main()
96         assert(sb.pbackfail(std::char_traits<wchar_t>::eof()) == std::char_traits<wchar_t>::eof());  in main()
97         assert(sb.str() == L"133");  in main()