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> class ctype;
13 
14 // explicit ctype(const mask* tbl = 0, bool del = false, size_t refs = 0);
15 
16 #include <locale>
17 #include <cassert>
18 
19 class my_facet
20     : public std::ctype<char>
21 {
22 public:
23     static int count;
24 
25     explicit my_facet(const mask* tbl = 0, bool del = false, std::size_t refs = 0)
26         : std::ctype<char>(tbl, del, refs) {++count;}
27 
28     ~my_facet() {--count;}
29 };
30 
31 int my_facet::count = 0;
32 
33 int main()
34 {
35     {
36         std::locale l(std::locale::classic(), new my_facet);
37         assert(my_facet::count == 1);
38     }
39     assert(my_facet::count == 0);
40     {
41         my_facet f(0, false, 1);
42         assert(my_facet::count == 1);
43         {
44             std::locale l(std::locale::classic(), &f);
45             assert(my_facet::count == 1);
46         }
47         assert(my_facet::count == 1);
48     }
49     assert(my_facet::count == 0);
50 }
51