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1 | // 2004-10-01 Paolo Carlini <pcarlini@suse.de> |
2 | ||
99dee823 | 3 | // Copyright (C) 2004-2021 Free Software Foundation, Inc. |
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4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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9 | // any later version. |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
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17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
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19 | |
20 | // 27.7.1.3 Overridden virtual functions [lib.stringbuf.virtuals] | |
21 | ||
22 | #include <sstream> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | class my_stringbuf : public std::wstringbuf | |
26 | { | |
27 | public: | |
28 | my_stringbuf(const std::wstring& str, std::ios_base::openmode mode) | |
29 | : std::wstringbuf(str, mode) { } | |
30 | ||
31 | int_type | |
32 | pub_pbackfail(int_type c) | |
33 | { return this->pbackfail(c); } | |
34 | }; | |
35 | ||
36 | void test01() | |
37 | { | |
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38 | using namespace std; |
39 | ||
40 | typedef my_stringbuf::int_type int_type; | |
41 | typedef my_stringbuf::traits_type traits_type; | |
42 | ||
43 | my_stringbuf sbuf(L"any", ios_base::in | ios_base::out); | |
44 | ||
45 | int_type c = sbuf.sgetc(); | |
46 | VERIFY( c == L'a' ); | |
47 | ||
48 | c = sbuf.pub_pbackfail(L'z'); | |
49 | VERIFY( c == traits_type::eof() ); | |
50 | c = sbuf.sbumpc(); | |
51 | VERIFY( c == L'a' ); | |
52 | ||
53 | c = sbuf.pub_pbackfail(L'a'); | |
54 | VERIFY( c == L'a' ); | |
55 | c = sbuf.sbumpc(); | |
56 | VERIFY( c == L'a' ); | |
57 | ||
58 | c = sbuf.pub_pbackfail(L'x'); | |
59 | VERIFY( c == L'x' ); | |
60 | c = sbuf.sbumpc(); | |
61 | VERIFY( c == L'x' ); | |
62 | ||
63 | const int_type eof = traits_type::eof(); | |
64 | c = sbuf.pub_pbackfail(eof); | |
65 | VERIFY( c == traits_type::not_eof(eof) ); | |
66 | c = sbuf.sgetc(); | |
67 | VERIFY( c == L'x' ); | |
68 | } | |
69 | ||
70 | int main() | |
71 | { | |
72 | test01(); | |
73 | return 0; | |
74 | } |