1 // Copyright (C) 2010-2014 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 3, 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 COPYING3.  If not see
16 // <http://www.gnu.org/licenses/>.
17 
18 // { dg-require-fileio "" }
19 
20 #include <fstream>
21 #include <testsuite_hooks.h>
22 
test01()23 void test01()
24 {
25   bool test __attribute__((unused)) = true;
26   using namespace std;
27 
28   wfilebuf fb_in_out;
29 
30   fb_in_out.open("tmp_underflow.tst", ios::in | ios::out | ios::trunc);
31 
32   VERIFY( fb_in_out.sputc(L'x') == L'x' );
33   VERIFY( fb_in_out.sgetc() == wfilebuf::traits_type::eof() );
34   fb_in_out.close();
35 }
36 
main()37 int main()
38 {
39   test01();
40   return 0;
41 }
42