]>
Commit | Line | Data |
---|---|---|
748086b7 | 1 | // Copyright (C) 2003, 2009 |
4c4809c1 BK |
2 | // Free Software Foundation, Inc. |
3 | // | |
4 | // This file is part of the GNU ISO C++ Library. This library is free | |
5 | // software; you can redistribute it and/or modify it under the | |
6 | // terms of the GNU General Public License as published by the | |
748086b7 | 7 | // Free Software Foundation; either version 3, or (at your option) |
4c4809c1 BK |
8 | // any later version. |
9 | ||
10 | // This library is distributed in the hope that it will be useful, | |
11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | // GNU General Public License for more details. | |
14 | ||
15 | // You should have received a copy of the GNU General Public License along | |
748086b7 JJ |
16 | // with this library; see the file COPYING3. If not see |
17 | // <http://www.gnu.org/licenses/>. | |
4c4809c1 BK |
18 | |
19 | // 27.8.1.4 Overridden virtual functions | |
20 | ||
0c20e4ec NS |
21 | // { dg-require-fileio "" } |
22 | ||
4c4809c1 BK |
23 | #include <fstream> |
24 | #include <locale> | |
25 | #include <testsuite_hooks.h> | |
26 | ||
27 | struct MyState | |
28 | { | |
29 | }; | |
30 | ||
31 | struct MyCharTraits : std::char_traits<char> | |
32 | { | |
33 | typedef std::fpos<MyState> pos_type; | |
34 | typedef MyState state_type; | |
35 | }; | |
36 | ||
37 | namespace std | |
38 | { | |
39 | template <> | |
40 | class codecvt<char, char, MyState> : | |
41 | public locale::facet, public codecvt_base | |
42 | { | |
43 | public: | |
44 | typedef char intern_type; | |
45 | typedef char extern_type; | |
46 | typedef MyState state_type; | |
47 | ||
48 | explicit codecvt(size_t refs = 0) | |
49 | : locale::facet(refs) { } | |
50 | ||
51 | result out(state_type& state, const intern_type* from, | |
52 | const intern_type* from_end, const intern_type*& from_next, | |
53 | extern_type* to, extern_type* to_limit, | |
54 | extern_type*& to_next) const | |
55 | { return do_out(state, from, from_end, from_next, | |
56 | to, to_limit, to_next); } | |
57 | ||
58 | result unshift(state_type& state, extern_type* to, extern_type* to_limit, | |
59 | extern_type*& to_next) const | |
60 | { return do_unshift(state, to, to_limit, to_next); } | |
61 | ||
62 | result in(state_type& state, const extern_type* from, | |
63 | const extern_type* from_end, const extern_type*& from_next, | |
64 | intern_type* to, intern_type* to_limit, | |
65 | intern_type*& to_next) const | |
66 | { return do_in(state, from, from_end, from_next, | |
67 | to, to_limit, to_next); } | |
68 | ||
69 | int encoding() const throw() | |
70 | { return do_encoding(); } | |
71 | ||
72 | bool always_noconv() const throw() | |
73 | { return do_always_noconv(); } | |
74 | ||
75 | int length(state_type& state, const extern_type* from, | |
76 | const extern_type* end, size_t max) const | |
77 | { return do_length(state, from, end, max); } | |
78 | ||
79 | int max_length() const throw() | |
80 | { return do_max_length(); } | |
81 | ||
82 | static locale::id id; | |
83 | ||
84 | protected: | |
85 | virtual ~codecvt(); | |
86 | ||
87 | virtual result do_out(state_type&, const intern_type* from, | |
88 | const intern_type*, const intern_type*& from_next, | |
89 | extern_type* to, extern_type*, | |
90 | extern_type*& to_next) const | |
91 | { | |
92 | from_next = from; | |
93 | to_next = to; | |
94 | return noconv; | |
95 | } | |
96 | ||
97 | virtual result do_in(state_type&, const extern_type* from, | |
98 | const extern_type*, const extern_type*& from_next, | |
99 | intern_type* to, intern_type*, | |
100 | intern_type*& to_next) const | |
101 | { | |
102 | from_next = from; | |
103 | to_next = to; | |
104 | return noconv; | |
105 | } | |
106 | ||
107 | virtual result do_unshift(state_type&, extern_type*, extern_type*, | |
108 | extern_type*&) const | |
109 | { return noconv; } | |
110 | ||
111 | virtual int do_encoding() const throw() | |
112 | { return 1; } | |
113 | ||
114 | virtual bool do_always_noconv() const throw() | |
115 | { return true; } | |
116 | ||
117 | virtual int do_length(state_type&, const extern_type* from, | |
118 | const extern_type* end, size_t max) const | |
119 | { | |
120 | size_t len = end - from; | |
121 | return std::min(max, len); | |
122 | } | |
123 | ||
124 | virtual int do_max_length() const throw() | |
125 | { return 1; } | |
126 | }; | |
127 | ||
128 | locale::id codecvt<char, char, MyState>::id; | |
129 | ||
130 | codecvt<char, char, MyState>::~codecvt() | |
131 | { } | |
132 | } | |
133 | ||
134 | void test01() | |
135 | { | |
136 | bool test __attribute__((unused)) = true; | |
137 | ||
138 | std::locale loc(std::locale::classic(), | |
139 | new std::codecvt<char, char, MyState>); | |
140 | std::basic_filebuf<char, MyCharTraits> fb; | |
141 | fb.pubimbue(loc); | |
142 | fb.open("tmp_11543", std::ios_base::out); | |
143 | VERIFY( fb.is_open() ); | |
144 | MyCharTraits::pos_type pos = fb.pubseekoff(0, std::ios_base::beg); | |
145 | VERIFY( pos != MyCharTraits::pos_type(MyCharTraits::off_type(-1)) ); | |
146 | fb.close(); | |
147 | } | |
148 | ||
149 | int main() | |
150 | { | |
151 | test01(); | |
152 | return 0; | |
153 | } |