1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <codecvt>
11 
12 // template <class Elem, unsigned long Maxcode = 0x10ffff,
13 //           codecvt_mode Mode = (codecvt_mode)0>
14 // class codecvt_utf8
15 //     : public codecvt<Elem, char, mbstate_t>
16 // {
17 //     // unspecified
18 // };
19 
20 // int max_length() const throw();
21 
22 #include <codecvt>
23 #include <cassert>
24 
25 int main()
26 {
27     {
28         typedef std::codecvt_utf8<wchar_t> C;
29         C c;
30         int r = c.max_length();
31         assert(r == 4);
32     }
33     {
34         typedef std::codecvt_utf8<wchar_t, 0xFFFFFFFF, std::consume_header> C;
35         C c;
36         int r = c.max_length();
37         assert(r == 7);
38     }
39     {
40         typedef std::codecvt_utf8<char16_t> C;
41         C c;
42         int r = c.max_length();
43         assert(r == 3);
44     }
45     {
46         typedef std::codecvt_utf8<char16_t, 0xFFFFFFFF, std::consume_header> C;
47         C c;
48         int r = c.max_length();
49         assert(r == 6);
50     }
51     {
52         typedef std::codecvt_utf8<char32_t> C;
53         C c;
54         int r = c.max_length();
55         assert(r == 4);
56     }
57     {
58         typedef std::codecvt_utf8<char32_t, 0xFFFFFFFF, std::consume_header> C;
59         C c;
60         int r = c.max_length();
61         assert(r == 7);
62     }
63 }
64