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1 | // 2003-04-12 Paolo Carlini <pcarlini at unitus dot it> |
2 | ||
1b716e90 | 3 | // Copyright (C) 2003, 2004, 2005, 2006, 2007 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 | |
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> | |
1b716e90 | 28 | #include <cstring> |
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29 | #include <testsuite_hooks.h> |
30 | ||
31 | // Small stack-based buffers (i.e., using _M_unbuf) were not flushed | |
32 | // out by _M_really_overflow upon overflow. | |
33 | void test01() | |
34 | { | |
2ad00228 | 35 | using namespace std; |
11f10e6b | 36 | bool test __attribute__((unused)) = true; |
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37 | |
38 | const char* name = "tmp_file1"; | |
39 | FILE* file = fopen(name, "w"); | |
40 | { | |
41 | using namespace __gnu_cxx; | |
e3033a22 | 42 | stdio_filebuf<char> sbuf(file, ios_base::out, 2); |
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43 | sbuf.sputc('T'); |
44 | sbuf.sputc('S'); | |
e3033a22 | 45 | sbuf.sputc('P'); |
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46 | } |
47 | fclose(file); | |
48 | ||
49 | filebuf fbuf; | |
50 | fbuf.open(name, ios_base::in); | |
51 | char buf[10]; | |
52 | streamsize n = fbuf.sgetn(buf, sizeof(buf)); | |
53 | fbuf.close(); | |
54 | ||
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55 | VERIFY( n == 3 ); |
56 | VERIFY( !memcmp(buf, "TSP", 3) ); | |
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57 | } |
58 | ||
59 | int main() | |
60 | { | |
61 | test01(); | |
62 | } |