1// 2003-05-01 Petur Runolfsson <peturr02@ru.is>
2
3// Copyright (C) 2003-2015 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// { dg-require-fileio "" }
21
22#include <ext/stdio_sync_filebuf.h>
23#include <testsuite_hooks.h>
24
25// libstdc++/12048
26void test04()
27{
28  bool test __attribute__((unused)) = true;
29  const char* name = "cin_unget-1.txt";
30
31  std::FILE* file = std::fopen(name, "r");
32  __gnu_cxx::stdio_sync_filebuf<char> sbuf(file);
33  char buf[2];
34  VERIFY( sbuf.sgetn(buf, 2) == 2 );
35  int c2 = sbuf.sungetc();
36  VERIFY( c2 != EOF );
37  int c3 = sbuf.sbumpc();
38  VERIFY( c3 == std::char_traits<char>::to_int_type(buf[1]) );
39
40  std::fclose(file);
41}
42
43int main ()
44{
45  test04();
46  return 0;
47}
48