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1 | // 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> |
2 | ||
a5544970 | 3 | // Copyright (C) 2001-2019 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/>. | |
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19 | |
20 | // 27.8.1.4 Overridden virtual functions | |
21 | ||
22 | #include <sstream> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | class OverBuf : public std::wstringbuf | |
26 | { | |
27 | public: | |
28 | int_type pub_overflow(int_type c = traits_type::eof()) | |
29 | { return std::wstringbuf::overflow(c); } | |
30 | }; | |
31 | ||
32 | // libstdc++/9988 | |
33 | // filebuf::overflow writes EOF to file | |
34 | void test15() | |
35 | { | |
36 | using namespace std; | |
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37 | |
38 | OverBuf sb; | |
39 | ||
40 | sb.sputc(L'a'); | |
41 | sb.pub_overflow(L'b'); | |
42 | sb.pub_overflow(); | |
43 | sb.sputc(L'c'); | |
44 | ||
45 | wstringbuf sbin(sb.str(), ios_base::in); | |
46 | wstringbuf::int_type c; | |
47 | c = sbin.sbumpc(); | |
48 | VERIFY( c == L'a' ); | |
49 | c = sbin.sbumpc(); | |
50 | VERIFY( c == L'b' ); | |
51 | c = sbin.sbumpc(); | |
52 | VERIFY( c == L'c' ); | |
53 | c = sbin.sbumpc(); | |
54 | VERIFY( c == wstringbuf::traits_type::eof() ); | |
55 | } | |
56 | ||
57 | int main() | |
58 | { | |
59 | test15(); | |
60 | return 0; | |
61 | } |