1// std::messages implementation details, GNU version -*- C++ -*- 
2 
3// Copyright (C) 2001-2019 Free Software Foundation, Inc. 
4// 
5// This file is part of the GNU ISO C++ Library. This library is free 
6// software; you can redistribute it and/or modify it under the 
7// terms of the GNU General Public License as published by the 
8// Free Software Foundation; either version 3, or (at your option) 
9// any later version. 
10 
11// This library is distributed in the hope that it will be useful, 
12// but WITHOUT ANY WARRANTY; without even the implied warranty of 
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
14// GNU General Public License for more details. 
15 
16// Under Section 7 of GPL version 3, you are granted additional 
17// permissions described in the GCC Runtime Library Exception, version 
18// 3.1, as published by the Free Software Foundation. 
19 
20// You should have received a copy of the GNU General Public License and 
21// a copy of the GCC Runtime Library Exception along with this program; 
22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 
23// <http://www.gnu.org/licenses/>. 
24 
25/** @file bits/messages_members.h 
26 * This is an internal header file, included by other library headers. 
27 * Do not attempt to use it directly. @headername{locale} 
28 */ 
29 
30// 
31// ISO C++ 14882: 22.2.7.1.2 messages functions 
32// 
33 
34// Written by Benjamin Kosnik <bkoz@redhat.com> 
35 
36#include <libintl.h> 
37 
38namespace std _GLIBCXX_VISIBILITY(default) 
39{ 
40_GLIBCXX_BEGIN_NAMESPACE_VERSION 
41 
42 // Non-virtual member functions. 
43 template<typename _CharT> 
44 messages<_CharT>::messages(size_t __refs) 
45 : facet(__refs), _M_c_locale_messages(_S_get_c_locale()), 
46 _M_name_messages(_S_get_c_name()) 
47 { } 
48 
49 template<typename _CharT> 
50 messages<_CharT>::messages(__c_locale __cloc, const char* __s, 
51 size_t __refs) 
52 : facet(__refs), _M_c_locale_messages(0), _M_name_messages(0) 
53 { 
54 if (__builtin_strcmp(__s, _S_get_c_name()) != 0) 
55 { 
56 const size_t __len = __builtin_strlen(__s) + 1; 
57 char* __tmp = new char[__len]; 
58 __builtin_memcpy(__tmp, __s, __len); 
59 _M_name_messages = __tmp; 
60 } 
61 else 
62 _M_name_messages = _S_get_c_name(); 
63 
64 // Last to avoid leaking memory if new throws. 
65 _M_c_locale_messages = _S_clone_c_locale(__cloc); 
66 } 
67 
68 template<typename _CharT> 
69 typename messages<_CharT>::catalog 
70 messages<_CharT>::open(const basic_string<char>& __s, const locale& __loc, 
71 const char* __dir) const 
72 { 
73 bindtextdomain(__s.c_str(), __dir); 
74 return this->do_open(__s, __loc); 
75 } 
76 
77 // Virtual member functions. 
78 template<typename _CharT> 
79 messages<_CharT>::~messages() 
80 { 
81 if (_M_name_messages != _S_get_c_name()) 
82 delete [] _M_name_messages; 
83 _S_destroy_c_locale(_M_c_locale_messages); 
84 } 
85 
86 template<typename _CharT> 
87 typename messages<_CharT>::catalog 
88 messages<_CharT>::do_open(const basic_string<char>& __s, 
89 const locale&) const 
90 { 
91 // No error checking is done, assume the catalog exists and can 
92 // be used. 
93 textdomain(__s.c_str()); 
94 return 0; 
95 } 
96 
97 template<typename _CharT> 
98 void 
99 messages<_CharT>::do_close(catalog) const 
100 { } 
101 
102 // messages_byname 
103 template<typename _CharT> 
104 messages_byname<_CharT>::messages_byname(const char* __s, size_t __refs) 
105 : messages<_CharT>(__refs) 
106 { 
107 if (this->_M_name_messages != locale::facet::_S_get_c_name()) 
108 { 
109 delete [] this->_M_name_messages; 
110 if (__builtin_strcmp(__s, locale::facet::_S_get_c_name()) != 0) 
111 { 
112 const size_t __len = __builtin_strlen(__s) + 1; 
113 char* __tmp = new char[__len]; 
114 __builtin_memcpy(__tmp, __s, __len); 
115 this->_M_name_messages = __tmp; 
116 } 
117 else 
118 this->_M_name_messages = locale::facet::_S_get_c_name(); 
119 } 
120 
121 if (__builtin_strcmp(__s, "C") != 0 
122 && __builtin_strcmp(__s, "POSIX") != 0) 
123 { 
124 this->_S_destroy_c_locale(this->_M_c_locale_messages); 
125 this->_S_create_c_locale(this->_M_c_locale_messages, __s); 
126 } 
127 } 
128 
129 //Specializations. 
130 template<> 
131 typename messages<char>::catalog 
132 messages<char>::do_open(const basic_string<char>&, 
133 const locale&) const; 
134 
135 template<> 
136 void 
137 messages<char>::do_close(catalog) const; 
138 
139#ifdef _GLIBCXX_USE_WCHAR_T 
140 template<> 
141 typename messages<wchar_t>::catalog 
142 messages<wchar_t>::do_open(const basic_string<char>&, 
143 const locale&) const; 
144 
145 template<> 
146 void 
147 messages<wchar_t>::do_close(catalog) const; 
148#endif 
149 
150_GLIBCXX_END_NAMESPACE_VERSION 
151} // namespace 
152