1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
// 2003-02-06 Petur Runolfsson <peturr02@ru.is>
// Copyright (C) 2003 Free Software Foundation
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
#include <locale>
#include <testsuite_hooks.h>
#ifdef _GLIBCXX_USE___ENC_TRAITS
// Need some char_traits specializations for this to work.
typedef unsigned short unicode_t;
namespace std
{
template<>
struct char_traits<unicode_t>
{
typedef unicode_t char_type;
// Unsigned as wint_t is unsigned.
typedef unsigned long int_type;
typedef streampos pos_type;
typedef streamoff off_type;
typedef mbstate_t state_type;
static void
assign(char_type& __c1, const char_type& __c2);
static bool
eq(const char_type& __c1, const char_type& __c2);
static bool
lt(const char_type& __c1, const char_type& __c2);
static int
compare(const char_type* __s1, const char_type* __s2, size_t __n)
{ return memcmp(__s1, __s2, __n); }
static size_t
length(const char_type* __s);
static const char_type*
find(const char_type* __s, size_t __n, const char_type& __a);
static char_type*
move(char_type* __s1, const char_type* __s2, size_t __n);
static char_type*
copy(char_type* __s1, const char_type* __s2, size_t __n)
{ return static_cast<char_type*>(memcpy(__s1, __s2, __n)); }
static char_type*
assign(char_type* __s, size_t __n, char_type __a);
static char_type
to_char_type(const int_type& __c);
static int_type
to_int_type(const char_type& __c);
static bool
eq_int_type(const int_type& __c1, const int_type& __c2);
static int_type
eof();
static int_type
not_eof(const int_type& __c);
};
}
void
initialize_state(std::__enc_traits& state)
{ state._M_init(); }
bool length_called = false;
class length_codecvt : public std::codecvt<unicode_t, char, std::__enc_traits>
{
typedef std::codecvt<unicode_t, char, std::__enc_traits> unicode_codecvt;
public:
// DR75: type of first argument of do_length is state_type&
virtual int do_length(state_type& state, const extern_type* from,
const extern_type* end, std::size_t max) const
{
length_called = true;
return unicode_codecvt::do_length(state, from, end, max);
}
};
// Partial specialization using __enc_traits.
// codecvt<unicode_t, char, __enc_traits>
// UNICODE - UCS2 (big endian)
void test01()
{
using namespace std;
typedef unicode_t int_type;
typedef char ext_type;
typedef __enc_traits enc_type;
typedef codecvt<int_type, ext_type, enc_type> unicode_codecvt;
bool test __attribute__((unused)) = true;
const ext_type* e_lit = "black pearl jasmine tea";
int size = strlen(e_lit);
// construct a locale object with the specialized facet.
locale loc(locale::classic(), new length_codecvt);
// sanity check the constructed locale has the specialized facet.
VERIFY( has_facet<unicode_codecvt>(loc) );
const unicode_codecvt& cvt = use_facet<unicode_codecvt>(loc);
unicode_codecvt::state_type state04("UCS-2BE", "ISO-8859-15", 0xfeff, 0);
initialize_state(state04);
length_called = false;
cvt.length(state04, e_lit, e_lit + size, 5);
VERIFY( length_called );
}
#endif // _GLIBCXX_USE___ENC_TRAITS
int main ()
{
#if _GLIBCXX_USE___ENC_TRAITS
test01();
#endif
return 0;
}
|
