1 // { dg-do run { target c++11 } }
2
3 // Copyright (C) 2014-2019 Free Software Foundation, Inc.
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 // 27.8.5.1 basic_stringstream constructors [stringstream.cons]
21
22 #include <sstream>
23 #include <string>
24 #include <testsuite_hooks.h>
25
26 const std::string strings[] = {
27 "one could carry out the description of a machine, ",
28 "no matter how complicated, ",
29 "in characters which would be merely the letters of the alphabet, and so ",
30 "provide the mind with a method of knowing the machine and all its parts"
31 };
32
33 void
append(std::stringstream & ss,std::string & s,const std::string & t)34 append(std::stringstream& ss, std::string& s, const std::string& t)
35 {
36 ss << t;
37 s += t;
38 }
39
40 void
test01()41 test01()
42 {
43 std::string exp;
44 std::stringstream s1;
45 append(s1, exp, strings[0]);
46
47 std::stringstream s2 = std::move(s1);
48 VERIFY( s2.good() );
49 VERIFY( s2.rdbuf() != nullptr );
50 VERIFY( s2.str() == exp );
51 append(s2, exp, strings[1]);
52 VERIFY( s2.str() == exp );
53
54 std::stringstream s3 = std::move(s2);
55 VERIFY( s3.good() );
56 VERIFY( s3.rdbuf() != nullptr );
57 VERIFY( s3.str() == exp );
58 append(s3, exp, strings[2]);
59 VERIFY( s3.str() == exp );
60
61 s1.str("");
62 s1.clear();
63 exp.clear();
64 append(s1, exp, strings[3]);
65 VERIFY( s1.str() == exp );
66 }
67
68 void
test02()69 test02()
70 {
71 #ifdef _GLIBCXX_USE_WCHAR_T
72 std::wstringstream s1;
73 std::wstringstream s2 = std::move(s1);
74 #endif
75 }
76
77 int
main()78 main()
79 {
80 test01();
81 test02();
82 }
83