aboutsummaryrefslogtreecommitdiff
path: root/libstdc++-v3/testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc
blob: e9a701e8c52708d40c8eb432c8707dca23ebe15a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
// 1999-07-01 bkoz

// Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// 21.3.7.9 inserters and extractors

// NB: This file is predicated on sstreams, istreams, and ostreams
// working, not to mention other major details like char_traits, and
// all of the string class.

#include <string>
#include <fstream>
#include <iostream>
#include <testsuite_hooks.h>

// testing basic_filebuf::xsputn via stress testing with large strings
// based on a bug report libstdc++ 9
// mode == out
void test05(int size)
{
  bool test = true;
  const char filename[] = "inserters_extractors-1.txt";
  const wchar_t fillc = L'f';
  std::wofstream ofs(filename);
  std::wstring str(size, fillc);

  // sanity checks
  VERIFY( str.size() == size );
  VERIFY( ofs.good() );

  // stress test
  ofs << str << std::endl;
  if (!ofs.good()) 
    test = false;

  ofs << str << std::endl;
  if (!ofs.good()) 
    test = false;

  VERIFY( str.size() == size );
  VERIFY( ofs.good() );

  ofs.close();

  // sanity check on the written file
  std::wifstream ifs(filename);
  int count = 0;
  wchar_t c;
  while (count <= (2 * size) + 4)
    {
      ifs >> c;
      if (ifs.good() && c == fillc)
	{
	  ++count;
	  c = '0';
	}
      else 
	break;
    }

  VERIFY( count == 2 * size );

#ifdef DEBUG_ASSERT
  assert(test);
#endif
}

int main()
{ 
  test05(1); 
  test05(1000); 
  test05(10000);
  return 0;
}