1 // 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
2 
3 // Copyright (C) 2001-2016 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 3, 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 COPYING3.  If not see
18 // <http://www.gnu.org/licenses/>.
19 
20 // 27.8.1.4 Overridden virtual functions
21 
22 // { dg-require-fileio "" }
23 
24 #include <fstream>
25 #include <testsuite_hooks.h>
26 
27 const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it
28 
29 // libstdc++/9439, libstdc++/9425
30 // basic_filebuf<>::pbackfail calls basic_filebuf<>::seekoff, but
31 // fails to check the return value
test09()32 void test09()
33 {
34   using namespace std;
35   bool test __attribute__((unused)) = true;
36 
37   filebuf fbuf;
38   fbuf.open(name_01, ios_base::in);
39   filebuf::int_type r = fbuf.sputbackc('a');
40   fbuf.close();
41 
42   VERIFY( r == filebuf::traits_type::eof() );
43 }
44 
main()45 int main()
46 {
47   test09();
48   return 0;
49 }
50