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// Locale support -*- C++ -*-

// Copyright (C) 2011 Free Software Foundation, Inc.

//

// 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional

// permissions described in the GCC Runtime Library Exception, version

// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and

// a copy of the GCC Runtime Library Exception along with this program;

// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

// <http://www.gnu.org/licenses/>.

/** @file ctype_configure_char.cc */

//

// ISO C++ 14882: 22.1  Locales

//

#include <locale>

#include <cstdlib>

#include <cstring>

namespace std _GLIBCXX_VISIBILITY(default)

{

_GLIBCXX_BEGIN_NAMESPACE_VERSION

// Information as gleaned from /usr/include/ctype.h

#if _GLIBCXX_C_LOCALE_GNU

  const ctype_base::mask*

  ctype<char>::classic_table() throw()

  { return _S_get_c_locale()->__ctype_b; }

#else

  const ctype_base::mask*

  ctype<char>::classic_table() throw()

  {

    const ctype_base::mask* __ret;

    char* __old = setlocale(LC_CTYPE, NULL);

    char* __sav = NULL;

    if (__builtin_strcmp(__old, "C"))

      {

        const size_t __len = __builtin_strlen(__old) + 1;

        __sav = new char[__len];

        __builtin_memcpy(__sav, __old, __len);

        setlocale(LC_CTYPE, "C");

      }

#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)

    __ret = *__ctype_b_loc();

#else

    __ret = __ctype_b;

#endif

    if (__sav)

      {

        setlocale(LC_CTYPE, __sav);

        delete [] __sav;

      }

    return __ret;

  }

#endif

#if _GLIBCXX_C_LOCALE_GNU

  ctype<char>::ctype(__c_locale __cloc, const mask* __table, bool __del,

                     size_t __refs)

  : facet(__refs), _M_c_locale_ctype(_S_clone_c_locale(__cloc)),

  _M_del(__table != 0 && __del),

  _M_toupper(_M_c_locale_ctype->__ctype_toupper),

  _M_tolower(_M_c_locale_ctype->__ctype_tolower),

  _M_table(__table ? __table : _M_c_locale_ctype->__ctype_b),

  _M_widen_ok(0), _M_narrow_ok(0)

  {

    __builtin_memset(_M_widen, 0, sizeof(_M_widen));

    __builtin_memset(_M_narrow, 0, sizeof(_M_narrow));

  }

#else

  ctype<char>::ctype(__c_locale, const mask* __table, bool __del,

                     size_t __refs)

  : facet(__refs), _M_c_locale_ctype(_S_get_c_locale()),

  _M_del(__table != 0 && __del), _M_widen_ok(0), _M_narrow_ok(0)

  {

    char* __old = setlocale(LC_CTYPE, NULL);

    char* __sav = NULL;

    if (__builtin_strcmp(__old, "C"))

      {

        const size_t __len = __builtin_strlen(__old) + 1;

        __sav = new char[__len];

        __builtin_memcpy(__sav, __old, __len);

        setlocale(LC_CTYPE, "C");

      }

#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)

    _M_toupper = *__ctype_toupper_loc();

    _M_tolower = *__ctype_tolower_loc();

    _M_table = __table ? __table : *__ctype_b_loc();

#else

    _M_toupper = __ctype_toupper;

    _M_tolower = __ctype_tolower;

    _M_table = __table ? __table : __ctype_b;

#endif

    if (__sav)

      {

        setlocale(LC_CTYPE, __sav);

        delete [] __sav;

      }

    __builtin_memset(_M_widen, 0, sizeof(_M_widen));

    __builtin_memset(_M_narrow, 0, sizeof(_M_narrow));

  }

#endif

#if _GLIBCXX_C_LOCALE_GNU

  ctype<char>::ctype(const mask* __table, bool __del, size_t __refs)

  : facet(__refs), _M_c_locale_ctype(_S_get_c_locale()),

  _M_del(__table != 0 && __del),

  _M_toupper(_M_c_locale_ctype->__ctype_toupper),

  _M_tolower(_M_c_locale_ctype->__ctype_tolower),

  _M_table(__table ? __table : _M_c_locale_ctype->__ctype_b),

  _M_widen_ok(0), _M_narrow_ok(0)

  {

    __builtin_memset(_M_widen, 0, sizeof(_M_widen));

    __builtin_memset(_M_narrow, 0, sizeof(_M_narrow));

  }

#else

  ctype<char>::ctype(const mask* __table, bool __del, size_t __refs)

  : facet(__refs), _M_c_locale_ctype(_S_get_c_locale()),

  _M_del(__table != 0 && __del), _M_widen_ok(0), _M_narrow_ok(0)

  {

    char* __old = setlocale(LC_CTYPE, NULL);

    char* __sav = NULL;

    if (__builtin_strcmp(__old, "C"))

      {

        const size_t __len = __builtin_strlen(__old) + 1;

        __sav = new char[__len];

        __builtin_memcpy(__sav, __old, __len);

        setlocale(LC_CTYPE, "C");

      }

#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)

    _M_toupper = *__ctype_toupper_loc();

    _M_tolower = *__ctype_tolower_loc();

    _M_table = __table ? __table : *__ctype_b_loc();

#else

    _M_toupper = __ctype_toupper;

    _M_tolower = __ctype_tolower;

    _M_table = __table ? __table : __ctype_b;

#endif

    if (__sav)

      {

        setlocale(LC_CTYPE, __sav);

        delete [] __sav;

      }

    __builtin_memset(_M_widen, 0, sizeof(_M_widen));

    __builtin_memset(_M_narrow, 0, sizeof(_M_narrow));

  }

#endif

  char

  ctype<char>::do_toupper(char __c) const

  { return _M_toupper[static_cast<unsigned char>(__c)]; }

  const char*

  ctype<char>::do_toupper(char* __low, const char* __high) const

  {

    while (__low < __high)

      {

        *__low = _M_toupper[static_cast<unsigned char>(*__low)];

        ++__low;

      }

    return __high;

  }

  char

  ctype<char>::do_tolower(char __c) const

  { return _M_tolower[static_cast<unsigned char>(__c)]; }

  const char*

  ctype<char>::do_tolower(char* __low, const char* __high) const

  {

    while (__low < __high)

      {

        *__low = _M_tolower[static_cast<unsigned char>(*__low)];

        ++__low;

      }

    return __high;

  }

_GLIBCXX_END_NAMESPACE_VERSION

} // namespace