1 // 2004-09-29 Paolo Carlini <pcarlini@suse.de>
2
3 // Copyright (C) 2004-2021 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 // C++03 27.7.1.1 basic_stringbuf constructors [lib.stringbuf.cons]
21
22 #include <sstream>
23 #include <testsuite_hooks.h>
24 #include <testsuite_io.h>
25
26 // http://gcc.gnu.org/ml/libstdc++/2004-09/msg00243.html
test01()27 void test01()
28 {
29 __gnu_test::constraint_wstringbuf sbuf;
30 VERIFY( sbuf.check_pointers() );
31 }
32
test02()33 void test02()
34 {
35 std::wstringbuf sbuf;
36 VERIFY( sbuf.str().empty() );
37
38 std::wstringbuf sbuf1(std::wios::in);
39 VERIFY( sbuf1.str().empty() );
40
41 const std::wstring str = L"This is my boomstick!";
42
43 std::wstringbuf sbuf2(str);
44 VERIFY( sbuf2.str() == str );
45
46 std::wstringbuf sbuf3(str, std::wios::in);
47 VERIFY( sbuf3.str() == str );
48 VERIFY( sbuf3.sgetc() == str[0] );
49 VERIFY( sbuf3.sputc(L'X') == std::wstringbuf::traits_type::eof() );
50
51 std::wstringbuf sbuf4(str, std::wios::out);
52 VERIFY( sbuf4.str() == str );
53 VERIFY( sbuf4.sputc(L'Y') == L'Y' );
54 VERIFY( sbuf4.sgetc() == std::wstringbuf::traits_type::eof() );
55
56 #if __cplusplus >= 201103L
57 static_assert( ! std::is_convertible<std::wios::openmode, std::wstringbuf>(),
58 "wstringbuf(wios::openmode) is explicit");
59
60 static_assert( ! std::is_convertible<const std::wstring&, std::wstringbuf>(),
61 "wstringbuf(wstring, wios::openmode) is explicit");
62 #endif
63 }
64
main()65 int main()
66 {
67 test01();
68 test02();
69 return 0;
70 }
71