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1 | // 1999-10-11 bkoz |
2 | ||
a5544970 | 3 | // Copyright (C) 1999-2019 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/>. | |
6f422965 | 19 | |
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20 | |
21 | // 27.5.2 template class basic_streambuf | |
22 | ||
23 | #include <streambuf> | |
24 | #include <ostream> | |
25 | #include <string> | |
26 | #include <testsuite_hooks.h> | |
27 | ||
28 | // test03 | |
29 | // http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00151.html | |
30 | template<typename charT, typename traits = std::char_traits<charT> > | |
31 | class basic_nullbuf : public std::basic_streambuf<charT, traits> | |
32 | { | |
33 | protected: | |
34 | typedef typename | |
35 | std::basic_streambuf<charT, traits>::int_type int_type; | |
36 | virtual int_type | |
37 | overflow(int_type c) | |
38 | { return traits::not_eof(c); } | |
39 | }; | |
40 | ||
41 | typedef basic_nullbuf<wchar_t> nullbuf; | |
42 | ||
43 | template<typename T> | |
44 | wchar_t | |
45 | print(const T& x) | |
46 | { | |
47 | nullbuf ob; | |
48 | std::wostream out(&ob); | |
49 | out << x << std::endl; | |
50 | return (!out ? L'0' : L'1'); | |
51 | } | |
52 | ||
53 | void test03() | |
54 | { | |
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55 | const std::wstring control01(L"11111"); |
56 | std::wstring test01; | |
57 | ||
58 | test01 += print(true); | |
59 | test01 += print(3.14159); | |
60 | test01 += print(10); | |
61 | test01 += print(L'x'); | |
62 | test01 += print(L"pipo"); | |
63 | ||
64 | VERIFY( test01 == control01 ); | |
65 | } | |
66 | ||
67 | int main() | |
68 | { | |
69 | test03(); | |
70 | return 0; | |
71 | } |