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1 // Copyright (C) 2015-2020 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-do run { target c++11 } }
19
20 // libstdc++/66441
21
22 #include <locale>
23 #include <codecvt>
24 #include <testsuite_hooks.h>
25
26 void
27 test01()
28 {
29 // convert from UCS-4 to UTF16BE with BOM.
30 using cvt = std::codecvt_utf16<char32_t, 0x10FFFF, std::generate_header>;
31 std::wstring_convert<cvt, char32_t> conv;
32 auto to = conv.to_bytes(U"ab\u00e7");
33
34 VERIFY( to.length() == 8 );
35 VERIFY( (unsigned char)to[0] == 0xfe );
36 VERIFY( (unsigned char)to[1] == 0xff );
37 VERIFY( (unsigned char)to[2] == 0x00 );
38 VERIFY( (unsigned char)to[3] == 0x61 );
39 VERIFY( (unsigned char)to[4] == 0x00 );
40 VERIFY( (unsigned char)to[5] == 0x62 );
41 VERIFY( (unsigned char)to[6] == 0x00 );
42 VERIFY( (unsigned char)to[7] == 0xe7 );
43 }
44
45 int
46 main()
47 {
48 test01();
49 }