1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // <codecvt>
10 
11 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
12 
13 // template <class Elem, unsigned long Maxcode = 0x10ffff,
14 //           codecvt_mode Mode = (codecvt_mode)0>
15 // class codecvt_utf8_utf16
16 //     : public codecvt<Elem, char, mbstate_t>
17 // {
18 //     // unspecified
19 // };
20 
21 // int max_length() const throw();
22 
23 #include <codecvt>
24 #include <cassert>
25 
26 #include "test_macros.h"
27 
28 int main(int, char**)
29 {
30 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
31     {
32         typedef std::codecvt_utf8_utf16<wchar_t> C;
33         C c;
34         int r = c.max_length();
35         assert(r == 4);
36     }
37     {
38         typedef std::codecvt_utf8_utf16<wchar_t, 0xFFFFFFFF, std::consume_header> C;
39         C c;
40         int r = c.max_length();
41         assert(r == 7);
42     }
43 #endif // TEST_HAS_NO_WIDE_CHARACTERS
44     {
45         typedef std::codecvt_utf8_utf16<char16_t> C;
46         C c;
47         int r = c.max_length();
48         assert(r == 4);
49     }
50     {
51         typedef std::codecvt_utf8_utf16<char16_t, 0xFFFFFFFF, std::consume_header> C;
52         C c;
53         int r = c.max_length();
54         assert(r == 7);
55     }
56     {
57         typedef std::codecvt_utf8_utf16<char32_t> C;
58         C c;
59         int r = c.max_length();
60         assert(r == 4);
61     }
62     {
63         typedef std::codecvt_utf8_utf16<char32_t, 0xFFFFFFFF, std::consume_header> C;
64         C c;
65         int r = c.max_length();
66         assert(r == 7);
67     }
68 
69   return 0;
70 }
71