1// Copyright (C) 2014-2015 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-options "-std=gnu++11" }
19// { dg-require-fileio "" }
20
21// 27.9.1.12 Assign and swap [ostringstream.assign]
22
23#include <fstream>
24#include <string>
25#include <testsuite_hooks.h>
26
27using namespace std;
28
29string const name = "ofstream-assign.txt";
30
31void
32test01()
33{
34  string s1 = "Let the whole outside world";
35  string s2 = " consist of a long paper tape.";
36  ofstream f(name, ios::trunc);
37  VERIFY( f.is_open() );
38  f << s1;
39  {
40    ofstream f1;
41    f1 = std::move(f);
42    VERIFY( f1.is_open() );
43    VERIFY( !f.is_open() );
44    f1 << s2;
45    f1.swap(f);
46    VERIFY( !f1.is_open() );
47    VERIFY( f.is_open() );
48    f << s1;
49    swap(f1, f);
50    f1 << s2;
51  }
52  ifstream in(name);
53  string result;
54  getline(in, result);
55  VERIFY( result == (s1 + s2 + s1 + s2) );
56}
57
58void
59test02()
60{
61#ifdef _GLIBCXX_USE_WCHAR_T
62  std::wofstream s0, s;
63  s = std::move(s0);
64  s.swap(s0);
65  swap(s, s0);
66#endif
67}
68
69int
70main()
71{
72  test01();
73  test02();
74}
75