libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/45841.cc

   1 // Copyright (C) 2010-2013 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
  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
  37 int main()
  38 {
  39   test01();
  40   return 0;
  41 }