1// Copyright (C) 2004-2015 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// 21.3.7.9 inserters and extractors
19
20// { dg-options "-DMAX_SIZE=466" { target simulator } }
21
22#ifndef MAX_SIZE
23#define MAX_SIZE 666
24#endif
25
26#include <istream>
27#include <string>
28#include <fstream>
29#include <cstdlib>
30#include <testsuite_hooks.h>
31
32using namespace std;
33
34wstring prepare(wstring::size_type len, unsigned nchunks)
35{
36  wstring ret;
37  for (unsigned i = 0; i < nchunks; ++i)
38    {
39      for (wstring::size_type j = 0; j < len; ++j)
40	ret.push_back(L'a' + rand() % 26);
41      len *= 2;
42      ret.push_back(L' ');
43    }
44  return ret;
45}
46
47void check(wistream& stream, const wstring& str, unsigned nchunks)
48{
49  bool test __attribute__((unused)) = true;
50
51  wstring chunk;
52  wstring::size_type index = 0, index_new = 0;
53  unsigned n = 0;
54
55  while (stream >> chunk)
56    {
57      index_new = str.find(L' ', index);
58      VERIFY( !str.compare(index, index_new - index, chunk) );
59      index = index_new + 1;
60      ++n;
61    }
62  VERIFY( stream.eof() );
63  VERIFY( n == nchunks );
64}
65
66// istream& operator>>(istream&, string&)
67void test01()
68{
69  const char filename[] = "inserters_extractors-3.txt";
70
71  const unsigned nchunks = 10;
72  const wstring data = prepare(MAX_SIZE, nchunks);
73
74  wofstream ofstrm;
75  ofstrm.open(filename);
76  ofstrm.write(data.data(), data.size());
77  ofstrm.close();
78
79  wifstream ifstrm;
80  ifstrm.open(filename);
81  check(ifstrm, data, nchunks);
82  ifstrm.close();
83}
84
85int main()
86{
87  test01();
88  return 0;
89}
90