1// Copyright (C) 2001-2015 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// 27.8.1.3 filebuf member functions
21// @require@ %-*.tst %-*.txt
22// @diff@ %-*.tst %-*.txt
23
24// various tests for filebuf::open() and filebuf::close() including
25// the non-portable functionality in the libstdc++-v3 IO library
26
27#include <fstream>
28#include <ext/stdio_filebuf.h>
29#include <testsuite_hooks.h>
30
31// Verify that std::filebuf doesn't close files that it didn't open
32// when using the following std::filebuf ctor:
33//
34//      std::filebuf(__c_file_type*  __f,
35//                   ios_base::openmode __mode,
36//                   int_type  __s);
37//
38// Thanks to "George T. Talbot" <george@moberg.com> for uncovering
39// this bug/situation.
40
41const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it
42const char name_02[] = "filebuf_virtuals-2.txt"; // empty file, need to create
43
44void test_02()
45{
46  bool test __attribute__((unused)) = true;
47  int close_num = 0;
48
49  // read (ext)
50  FILE* f2 = fopen(name_01, "r");
51  VERIFY( f2 );
52  if (f2)
53  {
54    __gnu_cxx::stdio_filebuf<char> fb(f2, std::ios_base::in, 512);
55    close_num = fclose(f2);
56  }
57  VERIFY( close_num == 0 );
58
59  // read (standard)
60  FILE* f = fopen(name_01, "r");
61  VERIFY( f );
62  if (f)
63  {
64    std::ifstream ifstream1(name_01);
65    VERIFY( ifstream1.is_open() );
66    std::ios_base::iostate st01 = ifstream1.rdstate();
67    VERIFY( st01 == std::ios_base::goodbit );
68    close_num = fclose(f);
69  }
70  VERIFY( close_num == 0 );
71}
72
73int
74main()
75{
76  test_02();
77  return 0;
78}
79
80
81