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 // <locale>
11 
12 // template <class CharT>
13 // class ctype_byname
14 //     : public ctype<CharT>
15 // {
16 // public:
17 //     explicit ctype_byname(const char*, size_t = 0);
18 //     explicit ctype_byname(const string&, size_t = 0);
19 //
20 // protected:
21 //     ~ctype_byname();
22 // };
23 
24 #include <locale>
25 #include <type_traits>
26 #include <cassert>
27 
28 #include "platform_support.h" // locale name macros
29 
30 int main()
31 {
32     {
33         std::locale l(LOCALE_en_US_UTF_8);
34         {
35             assert(std::has_facet<std::ctype_byname<char> >(l));
36             assert(&std::use_facet<std::ctype<char> >(l)
37                 == &std::use_facet<std::ctype_byname<char> >(l));
38         }
39         {
40             assert(std::has_facet<std::ctype_byname<wchar_t> >(l));
41             assert(&std::use_facet<std::ctype<wchar_t> >(l)
42                 == &std::use_facet<std::ctype_byname<wchar_t> >(l));
43         }
44     }
45     {
46         std::locale l("");
47         {
48             assert(std::has_facet<std::ctype_byname<char> >(l));
49             assert(&std::use_facet<std::ctype<char> >(l)
50                 == &std::use_facet<std::ctype_byname<char> >(l));
51         }
52         {
53             assert(std::has_facet<std::ctype_byname<wchar_t> >(l));
54             assert(&std::use_facet<std::ctype<wchar_t> >(l)
55                 == &std::use_facet<std::ctype_byname<wchar_t> >(l));
56         }
57     }
58     {
59         std::locale l("C");
60         {
61             assert(std::has_facet<std::ctype_byname<char> >(l));
62             assert(&std::use_facet<std::ctype<char> >(l)
63                 == &std::use_facet<std::ctype_byname<char> >(l));
64         }
65         {
66             assert(std::has_facet<std::ctype_byname<wchar_t> >(l));
67             assert(&std::use_facet<std::ctype<wchar_t> >(l)
68                 == &std::use_facet<std::ctype_byname<wchar_t> >(l));
69         }
70     }
71 }
72