combine.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 Facet> locale combine(const locale& other) const;
13
14#include <locale>
15#include <new>
16#include <cassert>
17
18int new_called = 0;
19
20void* operator new(std::size_t s) throw(std::bad_alloc)
21{
22    ++new_called;
23    return std::malloc(s);
24}
25
26void  operator delete(void* p) throw()
27{
28    --new_called;
29    std::free(p);
30}
31
32void check(const std::locale& loc)
33{
34    assert(std::has_facet<std::collate<char> >(loc));
35    assert(std::has_facet<std::collate<wchar_t> >(loc));
36
37    assert(std::has_facet<std::ctype<char> >(loc));
38    assert(std::has_facet<std::ctype<wchar_t> >(loc));
39    assert((std::has_facet<std::codecvt<char, char, std::mbstate_t> >(loc)));
40    assert((std::has_facet<std::codecvt<char16_t, char, std::mbstate_t> >(loc)));
41    assert((std::has_facet<std::codecvt<char32_t, char, std::mbstate_t> >(loc)));
42    assert((std::has_facet<std::codecvt<wchar_t, char, std::mbstate_t> >(loc)));
43
44    assert((std::has_facet<std::moneypunct<char> >(loc)));
45    assert((std::has_facet<std::moneypunct<wchar_t> >(loc)));
46    assert((std::has_facet<std::money_get<char> >(loc)));
47    assert((std::has_facet<std::money_get<wchar_t> >(loc)));
48    assert((std::has_facet<std::money_put<char> >(loc)));
49    assert((std::has_facet<std::money_put<wchar_t> >(loc)));
50
51    assert((std::has_facet<std::numpunct<char> >(loc)));
52    assert((std::has_facet<std::numpunct<wchar_t> >(loc)));
53    assert((std::has_facet<std::num_get<char> >(loc)));
54    assert((std::has_facet<std::num_get<wchar_t> >(loc)));
55    assert((std::has_facet<std::num_put<char> >(loc)));
56    assert((std::has_facet<std::num_put<wchar_t> >(loc)));
57
58    assert((std::has_facet<std::time_get<char> >(loc)));
59    assert((std::has_facet<std::time_get<wchar_t> >(loc)));
60    assert((std::has_facet<std::time_put<char> >(loc)));
61    assert((std::has_facet<std::time_put<wchar_t> >(loc)));
62
63    assert((std::has_facet<std::messages<char> >(loc)));
64    assert((std::has_facet<std::messages<wchar_t> >(loc)));
65}
66
67struct my_facet
68    : public std::locale::facet
69{
70    int test() const {return 5;}
71
72    static std::locale::id id;
73};
74
75std::locale::id my_facet::id;
76
77int main()
78{
79{
80    {
81        std::locale loc;
82        std::locale loc2(loc, new my_facet);
83        std::locale loc3 = loc.combine<my_facet>(loc2);
84        check(loc3);
85        assert(loc3.name() == "*");
86        assert((std::has_facet<my_facet>(loc3)));
87        const my_facet& f = std::use_facet<my_facet>(loc3);
88        assert(f.test() == 5);
89    }
90    assert(new_called == 0);
91}
92{
93    {
94        std::locale loc;
95        std::locale loc2;
96        try
97        {
98            std::locale loc3 = loc.combine<my_facet>(loc2);
99            assert(false);
100        }
101        catch (std::runtime_error&)
102        {
103        }
104    }
105    assert(new_called == 0);
106}
107}
108