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 // <ios>
11
12 // class ios_base
13
14 // locale imbue(const locale& loc);
15
16 #include <ios>
17 #include <string>
18 #include <locale>
19 #include <cassert>
20
21 #include "platform_support.h" // locale name macros
22
23 class test
24 : public std::ios
25 {
26 public:
test()27 test()
28 {
29 init(0);
30 }
31 };
32
33 bool f1_called = false;
34 bool f2_called = false;
35 bool f3_called = false;
36
f1(std::ios_base::event ev,std::ios_base & stream,int index)37 void f1(std::ios_base::event ev, std::ios_base& stream, int index)
38 {
39 if (ev == std::ios_base::imbue_event)
40 {
41 assert(!f1_called);
42 assert( f2_called);
43 assert( f3_called);
44 assert(stream.getloc().name() == LOCALE_en_US_UTF_8);
45 assert(index == 4);
46 f1_called = true;
47 }
48 }
49
f2(std::ios_base::event ev,std::ios_base & stream,int index)50 void f2(std::ios_base::event ev, std::ios_base& stream, int index)
51 {
52 if (ev == std::ios_base::imbue_event)
53 {
54 assert(!f1_called);
55 assert(!f2_called);
56 assert( f3_called);
57 assert(stream.getloc().name() == LOCALE_en_US_UTF_8);
58 assert(index == 5);
59 f2_called = true;
60 }
61 }
62
f3(std::ios_base::event ev,std::ios_base & stream,int index)63 void f3(std::ios_base::event ev, std::ios_base& stream, int index)
64 {
65 if (ev == std::ios_base::imbue_event)
66 {
67 assert(!f1_called);
68 assert(!f2_called);
69 assert(!f3_called);
70 assert(stream.getloc().name() == LOCALE_en_US_UTF_8);
71 assert(index == 6);
72 f3_called = true;
73 }
74 }
75
main()76 int main()
77 {
78 test t;
79 std::ios_base& b = t;
80 b.register_callback(f1, 4);
81 b.register_callback(f2, 5);
82 b.register_callback(f3, 6);
83 std::locale l = b.imbue(std::locale(LOCALE_en_US_UTF_8));
84 assert(l.name() == std::string("C"));
85 assert(b.getloc().name() == std::string(LOCALE_en_US_UTF_8));
86 assert(f1_called);
87 assert(f2_called);
88 assert(f3_called);
89 }
90