1 // std::ctype implementation details, GNU version -*- C++ -*-
3 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
4 // Free Software Foundation, Inc.
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 2, or (at your option)
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING. If not, write to the Free
19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22 // As a special exception, you may use this file as part of a free software
23 // library without restriction. Specifically, if other files instantiate
24 // templates or use macros or inline functions from this file, or you compile
25 // this file and link it with other files to produce an executable, this
26 // file does not by itself cause the resulting executable to be covered by
27 // the GNU General Public License. This exception does not however
28 // invalidate any other reasons why the executable file might be covered by
29 // the GNU General Public License.
32 // ISO C++ 14882: 22.2.1.1.2 ctype virtual functions.
35 // Written by Benjamin Kosnik <bkoz@redhat.com>
38 #include <bits/c++locale_internal.h>
44 // NB: The other ctype<char> specializations are in src/locale.cc and
45 // various /config/os/* files.
47 ctype_byname<char>::ctype_byname(const char* __s, size_t __refs)
48 : ctype<char>(0, false, __refs)
50 if (std::strcmp(__s, "C") != 0 && std::strcmp(__s, "POSIX") != 0)
52 this->_S_destroy_c_locale(this->_M_c_locale_ctype);
53 this->_S_create_c_locale(this->_M_c_locale_ctype, __s);
57 ctype_byname<char>::~ctype_byname()
60 #ifdef _GLIBCXX_USE_WCHAR_T
61 ctype<wchar_t>::__wmask_type
62 ctype<wchar_t>::_M_convert_to_wmask(const mask __m) const
64 // Darwin uses the same codes for 'char' as 'wchar_t', so this routine
70 ctype<wchar_t>::do_toupper(wchar_t __c) const
71 { return towupper(__c); }
74 ctype<wchar_t>::do_toupper(wchar_t* __lo, const wchar_t* __hi) const
78 *__lo = towupper(*__lo);
85 ctype<wchar_t>::do_tolower(wchar_t __c) const
86 { return towlower(__c); }
89 ctype<wchar_t>::do_tolower(wchar_t* __lo, const wchar_t* __hi) const
93 *__lo = towlower(*__lo);
101 do_widen(char __c) const
102 { return _M_widen[static_cast<unsigned char>(__c)]; }
106 do_widen(const char* __lo, const char* __hi, wchar_t* __dest) const
110 *__dest = _M_widen[static_cast<unsigned char>(*__lo)];
119 do_narrow(wchar_t __wc, char __dfault) const
121 if (__wc >= 0 && __wc < 128 && _M_narrow_ok)
122 return _M_narrow[__wc];
123 const int __c = wctob(__wc);
124 return (__c == EOF ? __dfault : static_cast<char>(__c));
129 do_narrow(const wchar_t* __lo, const wchar_t* __hi, char __dfault,
135 if (*__lo >= 0 && *__lo < 128)
136 *__dest = _M_narrow[*__lo];
139 const int __c = wctob(*__lo);
140 *__dest = (__c == EOF ? __dfault : static_cast<char>(__c));
148 const int __c = wctob(*__lo);
149 *__dest = (__c == EOF ? __dfault : static_cast<char>(__c));
157 ctype<wchar_t>::_M_initialize_ctype()
160 for (__i = 0; __i < 128; ++__i)
162 const int __c = wctob(__i);
166 _M_narrow[__i] = static_cast<char>(__c);
171 _M_narrow_ok = false;
173 __i < sizeof(_M_widen) / sizeof(wint_t); ++__i)
174 _M_widen[__i] = btowc(__i);
176 #endif // _GLIBCXX_USE_WCHAR_T