1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // REQUIRES: locale.en_US.UTF-8
10 // REQUIRES: locale.fr_FR.UTF-8
11
12 // <ios>
13
14 // template <class charT, class traits> class basic_ios
15
16 // basic_ios& copyfmt(const basic_ios& rhs);
17
18 #include <ios>
19 #include <streambuf>
20 #include <cassert>
21
22 #include "platform_support.h" // locale name macros
23
24 #include "test_macros.h"
25
26 struct testbuf
27 : public std::streambuf
28 {
29 };
30
31 bool f1_called = false;
32 bool f2_called = false;
33
34 bool g1_called = false;
35 bool g2_called = false;
36 bool g3_called = false;
37
f1(std::ios_base::event ev,std::ios_base & stream,int index)38 void f1(std::ios_base::event ev, std::ios_base& stream, int index)
39 {
40 if (ev == std::ios_base::erase_event)
41 {
42 assert(!f1_called);
43 assert( f2_called);
44 assert(!g1_called);
45 assert(!g2_called);
46 assert(!g3_called);
47 assert(stream.getloc().name() == LOCALE_en_US_UTF_8);
48 assert(index == 4);
49 f1_called = true;
50 }
51 }
52
f2(std::ios_base::event ev,std::ios_base & stream,int index)53 void f2(std::ios_base::event ev, std::ios_base& stream, int index)
54 {
55 if (ev == std::ios_base::erase_event)
56 {
57 assert(!f1_called);
58 assert(!f2_called);
59 assert(!g1_called);
60 assert(!g2_called);
61 assert(!g3_called);
62 assert(stream.getloc().name() == LOCALE_en_US_UTF_8);
63 assert(index == 5);
64 f2_called = true;
65 }
66 }
67
g1(std::ios_base::event ev,std::ios_base & stream,int index)68 void g1(std::ios_base::event ev, std::ios_base& stream, int index)
69 {
70 if (ev == std::ios_base::copyfmt_event)
71 {
72 assert( f1_called);
73 assert( f2_called);
74 assert(!g1_called);
75 assert( g2_called);
76 assert( g3_called);
77 assert(stream.getloc().name() == LOCALE_fr_FR_UTF_8);
78 assert(index == 7);
79 g1_called = true;
80 }
81 }
82
g2(std::ios_base::event ev,std::ios_base & stream,int index)83 void g2(std::ios_base::event ev, std::ios_base& stream, int index)
84 {
85 if (ev == std::ios_base::copyfmt_event)
86 {
87 assert( f1_called);
88 assert( f2_called);
89 assert(!g1_called);
90 assert(!g2_called);
91 assert( g3_called);
92 assert(stream.getloc().name() == LOCALE_fr_FR_UTF_8);
93 assert(index == 8);
94 g2_called = true;
95 }
96 }
97
g3(std::ios_base::event ev,std::ios_base & stream,int index)98 void g3(std::ios_base::event ev, std::ios_base& stream, int index)
99 {
100 if (ev == std::ios_base::copyfmt_event)
101 {
102 assert( f1_called);
103 assert( f2_called);
104 assert(!g1_called);
105 assert(!g2_called);
106 assert(!g3_called);
107 assert(stream.getloc().name() == LOCALE_fr_FR_UTF_8);
108 assert(index == 9);
109 g3_called = true;
110 }
111 }
112
main(int,char **)113 int main(int, char**)
114 {
115 testbuf sb1;
116 std::ios ios1(&sb1);
117 ios1.flags(std::ios::boolalpha | std::ios::dec | std::ios::fixed);
118 ios1.precision(1);
119 ios1.width(11);
120 ios1.imbue(std::locale(LOCALE_en_US_UTF_8));
121 ios1.exceptions(std::ios::failbit);
122 ios1.setstate(std::ios::eofbit);
123 ios1.register_callback(f1, 4);
124 ios1.register_callback(f2, 5);
125 ios1.iword(0) = 1;
126 ios1.iword(1) = 2;
127 ios1.iword(2) = 3;
128 char c1, c2, c3;
129 ios1.pword(0) = &c1;
130 ios1.pword(1) = &c2;
131 ios1.pword(2) = &c3;
132 ios1.tie((std::ostream*)1);
133 ios1.fill('1');
134
135 testbuf sb2;
136 std::ios ios2(&sb2);
137 ios2.flags(std::ios::showpoint | std::ios::uppercase);
138 ios2.precision(2);
139 ios2.width(12);
140 ios2.imbue(std::locale(LOCALE_fr_FR_UTF_8));
141 ios2.exceptions(std::ios::eofbit);
142 ios2.setstate(std::ios::goodbit);
143 ios2.register_callback(g1, 7);
144 ios2.register_callback(g2, 8);
145 ios2.register_callback(g3, 9);
146 ios2.iword(0) = 4;
147 ios2.iword(1) = 5;
148 ios2.iword(2) = 6;
149 ios2.iword(3) = 7;
150 ios2.iword(4) = 8;
151 ios2.iword(5) = 9;
152 char d1, d2;
153 ios2.pword(0) = &d1;
154 ios2.pword(1) = &d2;
155 ios2.tie((std::ostream*)2);
156 ios2.fill('2');
157
158 ios1.copyfmt(ios1);
159 assert(!f1_called);
160
161 #ifndef TEST_HAS_NO_EXCEPTIONS
162 try
163 {
164 ios1.copyfmt(ios2);
165 assert(false);
166 }
167 catch (std::ios_base::failure&)
168 {
169 }
170 assert(ios1.rdstate() == std::ios::eofbit);
171 assert(ios1.rdbuf() == &sb1);
172 assert(ios1.flags() == (std::ios::showpoint | std::ios::uppercase));
173 assert(ios1.precision() == 2);
174 assert(ios1.width() == 12);
175 assert(ios1.getloc().name() == LOCALE_fr_FR_UTF_8);
176 assert(ios1.exceptions() == std::ios::eofbit);
177 assert(f1_called);
178 assert(f2_called);
179 assert(g1_called);
180 assert(g2_called);
181 assert(g3_called);
182 assert(ios1.iword(0) == 4);
183 assert(ios1.iword(1) == 5);
184 assert(ios1.iword(2) == 6);
185 assert(ios1.iword(3) == 7);
186 assert(ios1.iword(4) == 8);
187 assert(ios1.iword(5) == 9);
188 assert(ios1.pword(0) == &d1);
189 assert(ios1.pword(1) == &d2);
190 assert(ios1.tie() == (std::ostream*)2);
191 assert(ios1.fill() == '2');
192 #endif
193
194 return 0;
195 }
196