1 // Copyright (C) 2003 Free Software Foundation, Inc.
2 //
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 2, or (at your option)
7 // any later version.
8
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
13
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING. If not, write to the Free
16 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
17 // USA.
18
19 // 27.8.1.4 Overridden virtual functions
20
21 #include <fstream>
22 #include <testsuite_hooks.h>
23
test01()24 void test01()
25 {
26 using namespace std;
27
28 bool test __attribute__((unused)) = true;
29 const char* name = "tmp_sync_1";
30
31 wfilebuf fb;
32
33 fb.open(name, ios_base::in | ios_base::out | ios_base::trunc);
34 fb.sputn(L"abc", 3);
35
36 fb.pubseekoff(0, ios_base::beg);
37 fb.sputc(L'1');
38
39 // Sync can't be used to switch from write mode to read mode.
40 fb.pubsync();
41
42 wfilebuf::int_type c = fb.sbumpc();
43 VERIFY( c == wfilebuf::traits_type::eof() );
44
45 fb.close();
46 }
47
main()48 int main()
49 {
50 test01();
51 return 0;
52 }
53