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1 | // 2003-04-12 Paolo Carlini <pcarlini at unitus dot it> |
2 | ||
3 | // Copyright (C) 2003 Free Software Foundation, Inc. | |
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 | |
8 | // Free Software Foundation; either version 2, or (at your option) | |
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 | |
17 | // with this library; see the file COPYING. If not, write to the Free | |
83f51799 | 18 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
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19 | // USA. |
20 | ||
21 | // stdio_filebuf.h | |
22 | ||
0c20e4ec NS |
23 | // { dg-require-fileio "" } |
24 | ||
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25 | #include <ext/stdio_filebuf.h> |
26 | #include <cstdio> | |
27 | #include <fstream> | |
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; |
11f10e6b | 35 | bool test __attribute__((unused)) = true; |
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36 | |
37 | const char* name = "tmp_file1"; | |
38 | FILE* file = fopen(name, "w"); | |
39 | { | |
40 | using namespace __gnu_cxx; | |
e3033a22 | 41 | stdio_filebuf<char> sbuf(file, ios_base::out, 2); |
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42 | sbuf.sputc('T'); |
43 | sbuf.sputc('S'); | |
e3033a22 | 44 | sbuf.sputc('P'); |
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45 | } |
46 | fclose(file); | |
47 | ||
48 | filebuf fbuf; | |
49 | fbuf.open(name, ios_base::in); | |
50 | char buf[10]; | |
51 | streamsize n = fbuf.sgetn(buf, sizeof(buf)); | |
52 | fbuf.close(); | |
53 | ||
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54 | VERIFY( n == 3 ); |
55 | VERIFY( !memcmp(buf, "TSP", 3) ); | |
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56 | } |
57 | ||
58 | int main() | |
59 | { | |
60 | test01(); | |
61 | } |