1// { dg-options "-std=gnu++11" }
2
3// Copyright (C) 2012 Free Software Foundation
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// 22.3.3.2.3  Buffer conversions
21
22#include <locale>
23#include <sstream>
24#include <testsuite_hooks.h>
25
26template<typename Elem>
27struct cvt : std::codecvt<Elem, char, std::mbstate_t> { };
28
29template<typename Elem>
30using buf_conv = std::wbuffer_convert<cvt<Elem>, Elem>;
31
32using std::string;
33using std::stringstream;
34using std::wstring;
35using std::wstringstream;
36
37void test01()
38{
39  buf_conv<wchar_t> buf;
40  std::stringbuf sbuf;
41  VERIFY( buf.rdbuf() == nullptr );
42  VERIFY( buf.rdbuf(&sbuf) == nullptr );
43  VERIFY( buf.rdbuf() == &sbuf );
44  VERIFY( buf.rdbuf(nullptr) == &sbuf );
45}
46
47void test02()
48{
49  std::stringbuf sbuf;
50  buf_conv<char> buf(&sbuf);  // noconv
51
52  stringstream ss;
53  ss.std::ios::rdbuf(&buf);
54  string input = "King for a day...";
55  ss << input << std::flush;
56  string output = sbuf.str();
57  VERIFY( input == output );
58}
59
60void test03()
61{
62  std::stringbuf sbuf;
63  buf_conv<wchar_t> buf(&sbuf);
64
65  wstringstream ss;
66  ss.std::wios::rdbuf(&buf);
67  wstring input = L"Fool for a lifetime";
68  ss << input << std::flush;
69  string output = sbuf.str();
70  VERIFY( output == "Fool for a lifetime" );
71}
72
73int main()
74{
75  test01();
76  test02();
77  test03();
78}
79