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a945c346 | 1 | // Copyright (C) 2004-2024 Free Software Foundation, Inc. |
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2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
748086b7 | 6 | // Free Software Foundation; either version 3, or (at your option) |
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7 | // any later version. |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
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15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
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18 | |
19 | // 27.5.2 template class basic_streambuf | |
20 | ||
21 | #include <cstring> | |
22 | #include <cwchar> | |
23 | #include <streambuf> | |
24 | #include <sstream> | |
25 | #include <ostream> | |
26 | #include <testsuite_hooks.h> | |
27 | ||
28 | // libstdc++/9424 | |
29 | class Outbuf_2 : public std::wstreambuf | |
30 | { | |
31 | wchar_t buf[1]; | |
32 | ||
33 | public: | |
34 | Outbuf_2() | |
35 | { | |
36 | setp(buf, buf + 1); | |
37 | } | |
38 | ||
39 | int_type overflow(int_type c) | |
40 | { | |
41 | int_type eof = traits_type::eof(); | |
42 | ||
43 | if (pptr() < epptr()) | |
44 | { | |
45 | if (traits_type::eq_int_type(c, eof)) | |
46 | return traits_type::not_eof(c); | |
47 | ||
48 | *pptr() = traits_type::to_char_type(c); | |
49 | pbump(1); | |
50 | return c; | |
51 | } | |
52 | ||
53 | return eof; | |
54 | } | |
55 | }; | |
56 | ||
57 | class Inbuf_2 : public std::wstreambuf | |
58 | { | |
59 | static const wchar_t buf[]; | |
60 | const wchar_t* current; | |
61 | int size; | |
62 | ||
63 | public: | |
64 | Inbuf_2() | |
65 | { | |
66 | current = buf; | |
67 | size = std::wcslen(buf); | |
68 | } | |
69 | ||
70 | int_type underflow() | |
71 | { | |
72 | if (current < buf + size) | |
73 | return traits_type::to_int_type(*current); | |
74 | return traits_type::eof(); | |
75 | } | |
76 | ||
77 | int_type uflow() | |
78 | { | |
79 | if (current < buf + size) | |
80 | return traits_type::to_int_type(*current++); | |
81 | return traits_type::eof(); | |
82 | } | |
83 | }; | |
84 | ||
85 | const wchar_t Inbuf_2::buf[] = L"Atteivlis"; | |
86 | ||
87 | void test11() | |
88 | { | |
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89 | Inbuf_2 inbuf1; |
90 | std::wistream is(&inbuf1); | |
91 | Outbuf_2 outbuf1; | |
92 | is >> &outbuf1; | |
93 | VERIFY( inbuf1.sgetc() == L't' ); | |
94 | VERIFY( is.good() ); | |
95 | } | |
96 | ||
97 | int main() | |
98 | { | |
99 | test11(); | |
100 | return 0; | |
101 | } |