ctor_wchar_t.pass.cpp revision bc8d3f97eb5c958007f2713238472e0c1c8fe02c 
1//===----------------------------------------------------------------------===//
2//
3// ��������������������The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <locale>
11
12// template <> class codecvt_byname<wchar_t, char, mbstate_t>
13
14// explicit codecvt_byname(const char* nm, size_t refs = 0);
15// explicit codecvt_byname(const string& nm, size_t refs = 0);
16
17#include <locale>
18#include <cassert>
19
20typedef std::codecvt_byname<wchar_t, char, std::mbstate_t> F;
21
22class my_facet
23    : public F
24{
25public:
26    static int count;
27
28    explicit my_facet(const char* nm, std::size_t refs = 0)
29        : F(nm, refs) {++count;}
30    explicit my_facet(const std::string& nm, std::size_t refs = 0)
31        : F(nm, refs) {++count;}
32
33    ~my_facet() {--count;}
34};
35
36int my_facet::count = 0;
37
38int main()
39{
40    {
41        std::locale l(std::locale::classic(), new my_facet("en_US"));
42        assert(my_facet::count == 1);
43    }
44    assert(my_facet::count == 0);
45    {
46        my_facet f("en_US", 1);
47        assert(my_facet::count == 1);
48        {
49            std::locale l(std::locale::classic(), &f);
50            assert(my_facet::count == 1);
51        }
52        assert(my_facet::count == 1);
53    }
54    assert(my_facet::count == 0);
55    {
56        std::locale l(std::locale::classic(), new my_facet(std::string("en_US")));
57        assert(my_facet::count == 1);
58    }
59    assert(my_facet::count == 0);
60    {
61        my_facet f(std::string("en_US"), 1);
62        assert(my_facet::count == 1);
63        {
64            std::locale l(std::locale::classic(), &f);
65            assert(my_facet::count == 1);
66        }
67        assert(my_facet::count == 1);
68    }
69    assert(my_facet::count == 0);
70}
71