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1 | // 2003-04-12 Paolo Carlini <pcarlini at unitus dot it> |
2 | ||
a945c346 | 3 | // Copyright (C) 2003-2024 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 | // stdio_filebuf.h | |
21 | ||
0c20e4ec NS |
22 | // { dg-require-fileio "" } |
23 | ||
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24 | #include <ext/stdio_filebuf.h> |
25 | #include <cstdio> | |
26 | #include <fstream> | |
1b716e90 | 27 | #include <cstring> |
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28 | #include <testsuite_hooks.h> |
29 | ||
30 | // Small stack-based buffers (i.e., using _M_unbuf) were not flushed | |
31 | // out by _M_really_overflow upon overflow. | |
32 | void test01() | |
33 | { | |
2ad00228 | 34 | using namespace std; |
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35 | |
36 | const char* name = "tmp_file1"; | |
37 | FILE* file = fopen(name, "w"); | |
38 | { | |
39 | using namespace __gnu_cxx; | |
e3033a22 | 40 | stdio_filebuf<char> sbuf(file, ios_base::out, 2); |
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41 | sbuf.sputc('T'); |
42 | sbuf.sputc('S'); | |
e3033a22 | 43 | sbuf.sputc('P'); |
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44 | } |
45 | fclose(file); | |
46 | ||
47 | filebuf fbuf; | |
48 | fbuf.open(name, ios_base::in); | |
49 | char buf[10]; | |
50 | streamsize n = fbuf.sgetn(buf, sizeof(buf)); | |
51 | fbuf.close(); | |
52 | ||
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53 | VERIFY( n == 3 ); |
54 | VERIFY( !memcmp(buf, "TSP", 3) ); | |
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55 | } |
56 | ||
57 | int main() | |
58 | { | |
59 | test01(); | |
60 | } |