libstdc++
ctype_noninline.h
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1 // Locale support -*- C++ -*-
2 
3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4 // 2006, 2007, 2009, 2010
5 // Free Software Foundation, Inc.
6 //
7 // This file is part of the GNU ISO C++ Library. This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 3, or (at your option)
11 // any later version.
12 
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
17 
18 // Under Section 7 of GPL version 3, you are granted additional
19 // permissions described in the GCC Runtime Library Exception, version
20 // 3.1, as published by the Free Software Foundation.
21 
22 // You should have received a copy of the GNU General Public License and
23 // a copy of the GCC Runtime Library Exception along with this program;
24 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
25 // <http://www.gnu.org/licenses/>.
26 
27 /** @file bits/ctype_noninline.h
28  * This is an internal header file, included by other library headers.
29  * Do not attempt to use it directly. @headername{locale}
30  */
31 
32 //
33 // ISO C++ 14882: 22.1 Locales
34 //
35 
36 // Information as gleaned from /usr/include/ctype.h
37 
38 #if _GLIBCXX_C_LOCALE_GNU
39  const ctype_base::mask*
40  ctype<char>::classic_table() throw()
41  { return _S_get_c_locale()->__ctype_b; }
42 #else
43  const ctype_base::mask*
44  ctype<char>::classic_table() throw()
45  {
46  const ctype_base::mask* __ret;
47  char* __old = setlocale(LC_CTYPE, NULL);
48  char* __sav = NULL;
49  if (__builtin_strcmp(__old, "C"))
50  {
51  const size_t __len = __builtin_strlen(__old) + 1;
52  __sav = new char[__len];
53  __builtin_memcpy(__sav, __old, __len);
54  setlocale(LC_CTYPE, "C");
55  }
56 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
57  __ret = *__ctype_b_loc();
58 #else
59  __ret = __ctype_b;
60 #endif
61  if (__sav)
62  {
63  setlocale(LC_CTYPE, __sav);
64  delete [] __sav;
65  }
66  return __ret;
67  }
68 #endif
69 
70 #if _GLIBCXX_C_LOCALE_GNU
71  ctype<char>::ctype(__c_locale __cloc, const mask* __table, bool __del,
72  size_t __refs)
73  : facet(__refs), _M_c_locale_ctype(_S_clone_c_locale(__cloc)),
74  _M_del(__table != 0 && __del),
75  _M_toupper(_M_c_locale_ctype->__ctype_toupper),
76  _M_tolower(_M_c_locale_ctype->__ctype_tolower),
77  _M_table(__table ? __table : _M_c_locale_ctype->__ctype_b),
78  _M_widen_ok(0), _M_narrow_ok(0)
79  {
80  __builtin_memset(_M_widen, 0, sizeof(_M_widen));
81  __builtin_memset(_M_narrow, 0, sizeof(_M_narrow));
82  }
83 #else
84  ctype<char>::ctype(__c_locale, const mask* __table, bool __del,
85  size_t __refs)
86  : facet(__refs), _M_c_locale_ctype(_S_get_c_locale()),
87  _M_del(__table != 0 && __del), _M_widen_ok(0), _M_narrow_ok(0)
88  {
89  char* __old = setlocale(LC_CTYPE, NULL);
90  char* __sav = NULL;
91  if (__builtin_strcmp(__old, "C"))
92  {
93  const size_t __len = __builtin_strlen(__old) + 1;
94  __sav = new char[__len];
95  __builtin_memcpy(__sav, __old, __len);
96  setlocale(LC_CTYPE, "C");
97  }
98 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
99  _M_toupper = *__ctype_toupper_loc();
100  _M_tolower = *__ctype_tolower_loc();
101  _M_table = __table ? __table : *__ctype_b_loc();
102 #else
103  _M_toupper = __ctype_toupper;
104  _M_tolower = __ctype_tolower;
105  _M_table = __table ? __table : __ctype_b;
106 #endif
107  if (__sav)
108  {
109  setlocale(LC_CTYPE, __sav);
110  delete [] __sav;
111  }
112  __builtin_memset(_M_widen, 0, sizeof(_M_widen));
113  __builtin_memset(_M_narrow, 0, sizeof(_M_narrow));
114  }
115 #endif
116 
117 #if _GLIBCXX_C_LOCALE_GNU
118  ctype<char>::ctype(const mask* __table, bool __del, size_t __refs)
119  : facet(__refs), _M_c_locale_ctype(_S_get_c_locale()),
120  _M_del(__table != 0 && __del),
121  _M_toupper(_M_c_locale_ctype->__ctype_toupper),
122  _M_tolower(_M_c_locale_ctype->__ctype_tolower),
123  _M_table(__table ? __table : _M_c_locale_ctype->__ctype_b),
124  _M_widen_ok(0), _M_narrow_ok(0)
125  {
126  __builtin_memset(_M_widen, 0, sizeof(_M_widen));
127  __builtin_memset(_M_narrow, 0, sizeof(_M_narrow));
128  }
129 #else
130  ctype<char>::ctype(const mask* __table, bool __del, size_t __refs)
131  : facet(__refs), _M_c_locale_ctype(_S_get_c_locale()),
132  _M_del(__table != 0 && __del), _M_widen_ok(0), _M_narrow_ok(0)
133  {
134  char* __old = setlocale(LC_CTYPE, NULL);
135  char* __sav = NULL;
136  if (__builtin_strcmp(__old, "C"))
137  {
138  const size_t __len = __builtin_strlen(__old) + 1;
139  __sav = new char[__len];
140  __builtin_memcpy(__sav, __old, __len);
141  setlocale(LC_CTYPE, "C");
142  }
143 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
144  _M_toupper = *__ctype_toupper_loc();
145  _M_tolower = *__ctype_tolower_loc();
146  _M_table = __table ? __table : *__ctype_b_loc();
147 #else
148  _M_toupper = __ctype_toupper;
149  _M_tolower = __ctype_tolower;
150  _M_table = __table ? __table : __ctype_b;
151 #endif
152  if (__sav)
153  {
154  setlocale(LC_CTYPE, __sav);
155  delete [] __sav;
156  }
157  __builtin_memset(_M_widen, 0, sizeof(_M_widen));
158  __builtin_memset(_M_narrow, 0, sizeof(_M_narrow));
159  }
160 #endif
161 
162  char
163  ctype<char>::do_toupper(char __c) const
164  { return _M_toupper[static_cast<unsigned char>(__c)]; }
165 
166  const char*
167  ctype<char>::do_toupper(char* __low, const char* __high) const
168  {
169  while (__low < __high)
170  {
171  *__low = _M_toupper[static_cast<unsigned char>(*__low)];
172  ++__low;
173  }
174  return __high;
175  }
176 
177  char
178  ctype<char>::do_tolower(char __c) const
179  { return _M_tolower[static_cast<unsigned char>(__c)]; }
180 
181  const char*
182  ctype<char>::do_tolower(char* __low, const char* __high) const
183  {
184  while (__low < __high)
185  {
186  *__low = _M_tolower[static_cast<unsigned char>(*__low)];
187  ++__low;
188  }
189  return __high;
190  }