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File locale_classes.tcc

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

// Copyright (C) 2007-2018 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 bits/locale_classes.tcc
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly. @headername{locale}
 */

//
// ISO C++ 14882: 22.1  Locales
//

#ifndef _LOCALE_CLASSES_TCC
#define _LOCALE_CLASSES_TCC 1

#pragma GCC system_header

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

template<typename _Facet>
    locale::
    locale(const locale& __other, _Facet* __f)
    {
      _M_impl = new _Impl(*__other._M_impl, 1);

__try
	{ _M_impl->_M_install_facet(&_Facet::id, __f); }
      __catch(...)
	{
	  _M_impl->_M_remove_reference();
	  __throw_exception_again;
	}
      delete [] _M_impl->_M_names[0];
      _M_impl->_M_names[0] = 0;   // Unnamed.
    }

template<typename _Facet>
    locale
    locale::
    combine(const locale& __other) const
    {
      _Impl* __tmp = new _Impl(*_M_impl, 1);
      __try
	{
	  __tmp->_M_replace_facet(__other._M_impl, &_Facet::id);
	}
      __catch(...)
	{
	  __tmp->_M_remove_reference();
	  __throw_exception_again;
	}
      return locale(__tmp);
    }

template<typename _CharT, typename _Traits, typename _Alloc>
    bool
    locale::
    operator()(const basic_string<_CharT, _Traits, _Alloc>& __s1,
	       const basic_string<_CharT, _Traits, _Alloc>& __s2) const
    {
      typedef std::collate<_CharT> __collate_type;
      const __collate_type& __collate = use_facet<__collate_type>(*this);
      return (__collate.compare(__s1.data(), __s1.data() + __s1.length(),
				__s2.data(), __s2.data() + __s2.length()) < 0);
    }

/**
   *  @brief  Test for the presence of a facet.
   *  @ingroup locales
   *
   *  has_facet tests the locale argument for the presence of the facet type
   *  provided as the template parameter.  Facets derived from the facet
   *  parameter will also return true.
   *
   *  @tparam  _Facet  The facet type to test the presence of.
   *  @param  __loc  The locale to test.
   *  @return  true if @p __loc contains a facet of type _Facet, else false.
  */
  template<typename _Facet>
    bool
    has_facet(const locale& __loc) throw()
    {
      const size_t __i = _Facet::id._M_id();
      const locale::facet** __facets = __loc._M_impl->_M_facets;
      return (__i < __loc._M_impl->_M_facets_size
#if __cpp_rtti
	      && dynamic_cast<const _Facet*>(__facets[__i]));
#else
              && static_cast<const _Facet*>(__facets[__i]));
#endif
    }

/**
   *  @brief  Return a facet.
   *  @ingroup locales
   *
   *  use_facet looks for and returns a reference to a facet of type Facet
   *  where Facet is the template parameter.  If has_facet(locale) is true,
   *  there is a suitable facet to return.  It throws std::bad_cast if the
   *  locale doesn't contain a facet of type Facet.
   *
   *  @tparam  _Facet  The facet type to access.
   *  @param  __loc  The locale to use.
   *  @return  Reference to facet of type Facet.
   *  @throw  std::bad_cast if @p __loc doesn't contain a facet of type _Facet.
  */
  template<typename _Facet>
    const _Facet&
    use_facet(const locale& __loc)
    {
      const size_t __i = _Facet::id._M_id();
      const locale::facet** __facets = __loc._M_impl->_M_facets;
      if (__i >= __loc._M_impl->_M_facets_size || !__facets[__i])
        __throw_bad_cast();
#if __cpp_rtti
      return dynamic_cast<const _Facet&>(*__facets[__i]);
#else
      return static_cast<const _Facet&>(*__facets[__i]);
#endif
    }

// Generic version does nothing.
  template<typename _CharT>
    int
    collate<_CharT>::_M_compare(const _CharT*, const _CharT*) const throw ()
    { return 0; }

// Generic version does nothing.
  template<typename _CharT>
    size_t
    collate<_CharT>::_M_transform(_CharT*, const _CharT*, size_t) const throw ()
    { return 0; }

template<typename _CharT>
    int
    collate<_CharT>::
    do_compare(const _CharT* __lo1, const _CharT* __hi1,
	       const _CharT* __lo2, const _CharT* __hi2) const
    {
      // strcoll assumes zero-terminated strings so we make a copy
      // and then put a zero at the end.
      const string_type __one(__lo1, __hi1);
      const string_type __two(__lo2, __hi2);

const _CharT* __p = __one.c_str();
      const _CharT* __pend = __one.data() + __one.length();
      const _CharT* __q = __two.c_str();
      const _CharT* __qend = __two.data() + __two.length();

// strcoll stops when it sees a nul character so we break
      // the strings into zero-terminated substrings and pass those
      // to strcoll.
      for (;;)
	{
	  const int __res = _M_compare(__p, __q);
	  if (__res)
	    return __res;

__p += char_traits<_CharT>::length(__p);
	  __q += char_traits<_CharT>::length(__q);
	  if (__p == __pend && __q == __qend)
	    return 0;
	  else if (__p == __pend)
	    return -1;
	  else if (__q == __qend)
	    return 1;

__p++;
	  __q++;
	}
    }

template<typename _CharT>
    typename collate<_CharT>::string_type
    collate<_CharT>::
    do_transform(const _CharT* __lo, const _CharT* __hi) const
    {
      string_type __ret;

// strxfrm assumes zero-terminated strings so we make a copy
      const string_type __str(__lo, __hi);

const _CharT* __p = __str.c_str();
      const _CharT* __pend = __str.data() + __str.length();

size_t __len = (__hi - __lo) * 2;

_CharT* __c = new _CharT[__len];

__try
	{
	  // strxfrm stops when it sees a nul character so we break
	  // the string into zero-terminated substrings and pass those
	  // to strxfrm.
	  for (;;)
	    {
	      // First try a buffer perhaps big enough.
	      size_t __res = _M_transform(__c, __p, __len);
	      // If the buffer was not large enough, try again with the
	      // correct size.
	      if (__res >= __len)
		{
		  __len = __res + 1;
		  delete [] __c, __c = 0;
		  __c = new _CharT[__len];
		  __res = _M_transform(__c, __p, __len);
		}

__ret.append(__c, __res);
	      __p += char_traits<_CharT>::length(__p);
	      if (__p == __pend)
		break;

__p++;
	      __ret.push_back(_CharT());
	    }
	}
      __catch(...)
	{
	  delete [] __c;
	  __throw_exception_again;
	}

delete [] __c;

return __ret;
    }

template<typename _CharT>
    long
    collate<_CharT>::
    do_hash(const _CharT* __lo, const _CharT* __hi) const
    {
      unsigned long __val = 0;
      for (; __lo < __hi; ++__lo)
	__val =
	  *__lo + ((__val << 7)
		   | (__val >> (__gnu_cxx::__numeric_traits<unsigned long>::
				__digits - 7)));
      return static_cast<long>(__val);
    }

// Inhibit implicit instantiations for required instantiations,
  // which are defined via explicit instantiations elsewhere.
#if _GLIBCXX_EXTERN_TEMPLATE
  extern template class collate<char>;
  extern template class collate_byname<char>;

extern template
    const collate<char>&
    use_facet<collate<char> >(const locale&);

extern template
    bool
    has_facet<collate<char> >(const locale&);

#ifdef _GLIBCXX_USE_WCHAR_T
  extern template class collate<wchar_t>;
  extern template class collate_byname<wchar_t>;

extern template
    const collate<wchar_t>&
    use_facet<collate<wchar_t> >(const locale&);

extern template
    bool
    has_facet<collate<wchar_t> >(const locale&);
#endif
#endif

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std

#endif

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.	DIR	-	drwxr-xr-x	2025-08-28 10:58:25
..	DIR	-	drwxr-xr-x	2025-08-28 10:58:25
algorithmfwd.h	text/x-c	21.23 KB	-rw-r--r--	2025-08-26 09:45:00
alloc_traits.h	text/x-c	19.6 KB	-rw-r--r--	2025-08-26 09:45:00
allocated_ptr.h	text/plain	3.22 KB	-rw-r--r--	2025-08-26 09:45:00
allocator.h	text/x-c	7.39 KB	-rw-r--r--	2025-08-26 09:45:00
atomic_base.h	text/x-c	23.28 KB	-rw-r--r--	2025-08-26 09:45:00
atomic_futex.h	text/x-c	9.35 KB	-rw-r--r--	2025-08-26 09:45:00
atomic_lockfree_defines.h	text/plain	2.2 KB	-rw-r--r--	2025-08-26 09:45:07
basic_ios.h	text/x-c	15.7 KB	-rw-r--r--	2025-08-26 09:45:00
basic_ios.tcc	text/plain	5.94 KB	-rw-r--r--	2025-08-26 09:45:00
basic_string.h	text/x-c	237.01 KB	-rw-r--r--	2025-08-26 09:45:00
basic_string.tcc	text/x-c	52.5 KB	-rw-r--r--	2025-08-26 09:45:00
boost_concept_check.h	text/x-c++	26.52 KB	-rw-r--r--	2025-08-26 09:45:00
c++0x_warning.h	text/plain	1.44 KB	-rw-r--r--	2025-08-26 09:45:00
char_traits.h	text/x-c	20.42 KB	-rw-r--r--	2025-08-26 09:45:00
codecvt.h	text/plain	20.79 KB	-rw-r--r--	2025-08-26 09:45:00
concept_check.h	text/x-c	3.34 KB	-rw-r--r--	2025-08-26 09:45:00
cpp_type_traits.h	text/x-c	9.56 KB	-rw-r--r--	2025-08-26 09:45:00
cxxabi_forced.h	text/plain	1.77 KB	-rw-r--r--	2025-08-26 09:45:07
cxxabi_init_exception.h	text/x-c	2.17 KB	-rw-r--r--	2025-08-26 09:45:07
deque.tcc	text/plain	33.32 KB	-rw-r--r--	2025-08-26 09:45:00
enable_special_members.h	text/plain	12.1 KB	-rw-r--r--	2025-08-26 09:45:00
exception.h	text/x-c	2.23 KB	-rw-r--r--	2025-08-26 09:45:07
exception_defines.h	text/plain	1.61 KB	-rw-r--r--	2025-08-26 09:45:07
exception_ptr.h	text/x-c	5.84 KB	-rw-r--r--	2025-08-26 09:45:07
forward_list.h	text/x-c	47.77 KB	-rw-r--r--	2025-08-26 09:45:00
forward_list.tcc	text/plain	12.86 KB	-rw-r--r--	2025-08-26 09:45:00
fs_dir.h	text/plain	14.38 KB	-rw-r--r--	2025-08-26 09:45:00
fs_fwd.h	text/x-c	10.04 KB	-rw-r--r--	2025-08-26 09:45:00
fs_ops.h	text/x-c	9.5 KB	-rw-r--r--	2025-08-26 09:45:00
fs_path.h	text/x-c	32.12 KB	-rw-r--r--	2025-08-26 09:45:00
fstream.tcc	text/x-c	32.03 KB	-rw-r--r--	2025-08-26 09:45:00
functexcept.h	text/x-c	3.18 KB	-rw-r--r--	2025-08-26 09:45:00
functional_hash.h	text/x-c	8.04 KB	-rw-r--r--	2025-08-26 09:45:00
gslice.h	text/plain	5.39 KB	-rw-r--r--	2025-08-26 09:45:00
gslice_array.h	text/plain	7.59 KB	-rw-r--r--	2025-08-26 09:45:00
hash_bytes.h	text/x-c	2.1 KB	-rw-r--r--	2025-08-26 09:45:07
hashtable.h	text/x-c	72.06 KB	-rw-r--r--	2025-08-26 09:45:00
hashtable_policy.h	text/x-c	66.38 KB	-rw-r--r--	2025-08-26 09:45:00
indirect_array.h	text/plain	7.68 KB	-rw-r--r--	2025-08-26 09:45:00
invoke.h	text/x-c	3.57 KB	-rw-r--r--	2025-08-26 09:45:00
ios_base.h	text/x-c	30.3 KB	-rw-r--r--	2025-08-26 09:45:00
istream.tcc	text/x-c	30.36 KB	-rw-r--r--	2025-08-26 09:45:00
list.tcc	text/plain	15.6 KB	-rw-r--r--	2025-08-26 09:45:00
locale_classes.h	text/x-c	24.31 KB	-rw-r--r--	2025-08-26 09:45:00
locale_classes.tcc	text/plain	8.18 KB	-rw-r--r--	2025-08-26 09:45:00
locale_conv.h	text/x-c	15.72 KB	-rw-r--r--	2025-08-26 09:45:00
locale_facets.h	text/x-c	90.16 KB	-rw-r--r--	2025-08-26 09:45:00
locale_facets.tcc	text/plain	38.62 KB	-rw-r--r--	2025-08-26 09:45:00
locale_facets_nonio.h	text/x-c	67.36 KB	-rw-r--r--	2025-08-26 09:45:00
locale_facets_nonio.tcc	text/plain	44.22 KB	-rw-r--r--	2025-08-26 09:45:00
localefwd.h	text/x-c	5.51 KB	-rw-r--r--	2025-08-26 09:45:00
mask_array.h	text/plain	7.42 KB	-rw-r--r--	2025-08-26 09:45:00
memoryfwd.h	text/x-c	2.4 KB	-rw-r--r--	2025-08-26 09:45:00
move.h	text/x-c	6.38 KB	-rw-r--r--	2025-08-26 09:45:00
nested_exception.h	text/x-c	4.69 KB	-rw-r--r--	2025-08-26 09:45:07
node_handle.h	text/x-c	8.02 KB	-rw-r--r--	2025-08-26 09:45:00
ostream.tcc	text/x-c	12.03 KB	-rw-r--r--	2025-08-26 09:45:00
ostream_insert.h	text/x-c	3.91 KB	-rw-r--r--	2025-08-26 09:45:00
parse_numbers.h	text/x-c	7.76 KB	-rw-r--r--	2025-08-26 09:45:00
postypes.h	text/x-c	8.02 KB	-rw-r--r--	2025-08-26 09:45:00
predefined_ops.h	text/plain	8.87 KB	-rw-r--r--	2025-08-26 09:45:00
ptr_traits.h	text/x-c	6.47 KB	-rw-r--r--	2025-08-26 09:45:00
quoted_string.h	text/x-c	4.93 KB	-rw-r--r--	2025-08-26 09:45:00
random.h	text/x-c	171.14 KB	-rw-r--r--	2025-08-26 09:45:00
random.tcc	text/x-c	103.12 KB	-rw-r--r--	2025-08-26 09:45:00
range_access.h	text/x-c	9.79 KB	-rw-r--r--	2025-08-26 09:45:00
refwrap.h	text/x-c	11.61 KB	-rw-r--r--	2025-08-26 09:45:00
regex.h	text/plain	95.12 KB	-rw-r--r--	2025-08-26 09:45:00
regex.tcc	text/plain	16.18 KB	-rw-r--r--	2025-08-26 09:45:00
regex_automaton.h	text/plain	10.47 KB	-rw-r--r--	2025-08-26 09:45:00
regex_automaton.tcc	text/x-Algol68	7.65 KB	-rw-r--r--	2025-08-26 09:45:00
regex_compiler.h	text/plain	17.63 KB	-rw-r--r--	2025-08-26 09:45:00
regex_compiler.tcc	text/plain	18.84 KB	-rw-r--r--	2025-08-26 09:45:00
regex_constants.h	text/plain	14.36 KB	-rw-r--r--	2025-08-26 09:45:00
regex_error.h	text/plain	4.79 KB	-rw-r--r--	2025-08-26 09:45:00
regex_executor.h	text/x-c	7.31 KB	-rw-r--r--	2025-08-26 09:45:00
regex_executor.tcc	text/plain	18.4 KB	-rw-r--r--	2025-08-26 09:45:00
regex_scanner.h	text/x-c	6.92 KB	-rw-r--r--	2025-08-26 09:45:00
regex_scanner.tcc	text/plain	14.66 KB	-rw-r--r--	2025-08-26 09:45:00
shared_ptr.h	text/x-c	22.88 KB	-rw-r--r--	2025-08-26 09:45:00
shared_ptr_atomic.h	text/x-c	9.54 KB	-rw-r--r--	2025-08-26 09:45:00
shared_ptr_base.h	text/x-c	53.01 KB	-rw-r--r--	2025-08-26 09:45:00
slice_array.h	text/plain	9.13 KB	-rw-r--r--	2025-08-26 09:45:00
specfun.h	text/x-c	45.95 KB	-rw-r--r--	2025-08-26 09:45:00
sstream.tcc	text/plain	9.9 KB	-rw-r--r--	2025-08-26 09:45:00
std_abs.h	text/x-c	3.19 KB	-rw-r--r--	2025-08-26 09:45:00
std_function.h	text/x-c	22.71 KB	-rw-r--r--	2025-08-26 09:45:00
std_mutex.h	text/x-c	9.08 KB	-rw-r--r--	2025-08-26 09:45:00
stl_algo.h	text/x-c	209.27 KB	-rw-r--r--	2025-08-26 09:45:00
stl_algobase.h	text/x-c	49.31 KB	-rw-r--r--	2025-08-26 09:45:00
stl_bvector.h	text/x-c	32.94 KB	-rw-r--r--	2025-08-26 09:45:00
stl_construct.h	text/x-c	7.22 KB	-rw-r--r--	2025-08-26 09:45:00
stl_deque.h	text/x-c	76.73 KB	-rw-r--r--	2025-08-26 09:45:00
stl_function.h	text/x-c	40.77 KB	-rw-r--r--	2025-08-26 09:45:00
stl_heap.h	text/x-c	19.73 KB	-rw-r--r--	2025-08-26 09:45:00
stl_iterator.h	text/x-c	41.3 KB	-rw-r--r--	2025-08-26 09:45:00
stl_iterator_base_funcs.h	text/x-c	7.99 KB	-rw-r--r--	2025-08-26 09:45:00
stl_iterator_base_types.h	text/x-c	8.48 KB	-rw-r--r--	2025-08-26 09:45:00
stl_list.h	text/x-c	65.97 KB	-rw-r--r--	2025-08-26 09:45:00
stl_map.h	text/x-c	51.55 KB	-rw-r--r--	2025-08-26 09:45:00
stl_multimap.h	text/x-c	40.58 KB	-rw-r--r--	2025-08-26 09:45:00
stl_multiset.h	text/x-c	34.97 KB	-rw-r--r--	2025-08-26 09:45:00
stl_numeric.h	text/x-c	13.51 KB	-rw-r--r--	2025-08-26 09:45:00
stl_pair.h	text/x-c	18.21 KB	-rw-r--r--	2025-08-26 09:45:00
stl_queue.h	text/x-c	23.51 KB	-rw-r--r--	2025-08-26 09:45:00
stl_raw_storage_iter.h	text/plain	3.74 KB	-rw-r--r--	2025-08-26 09:45:00
stl_relops.h	text/plain	4.49 KB	-rw-r--r--	2025-08-26 09:45:00
stl_set.h	text/x-c	35.28 KB	-rw-r--r--	2025-08-26 09:45:00
stl_stack.h	text/x-c	11.66 KB	-rw-r--r--	2025-08-26 09:45:00
stl_tempbuf.h	text/x-c	8.15 KB	-rw-r--r--	2025-08-26 09:45:00
stl_tree.h	text/x-c	73.15 KB	-rw-r--r--	2025-08-26 09:45:00
stl_uninitialized.h	text/x-c	27.06 KB	-rw-r--r--	2025-08-26 09:45:00
stl_vector.h	text/x-c	59.12 KB	-rw-r--r--	2025-08-26 09:45:00
stream_iterator.h	text/x-c	6.5 KB	-rw-r--r--	2025-08-26 09:45:00
streambuf.tcc	text/plain	4.81 KB	-rw-r--r--	2025-08-26 09:45:00
streambuf_iterator.h	text/x-c	13.44 KB	-rw-r--r--	2025-08-26 09:45:00
string_view.tcc	text/plain	6.54 KB	-rw-r--r--	2025-08-26 09:45:00
stringfwd.h	text/x-c	2.55 KB	-rw-r--r--	2025-08-26 09:45:00
uniform_int_dist.h	text/x-c	9.84 KB	-rw-r--r--	2025-08-26 09:45:00
unique_ptr.h	text/x-c	25.38 KB	-rw-r--r--	2025-08-26 09:45:00
unordered_map.h	text/html	73.58 KB	-rw-r--r--	2025-08-26 09:45:00
unordered_set.h	text/html	57.76 KB	-rw-r--r--	2025-08-26 09:45:00
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valarray_array.tcc	text/plain	7.08 KB	-rw-r--r--	2025-08-26 09:45:00
valarray_before.h	text/x-c	18.08 KB	-rw-r--r--	2025-08-26 09:45:00
vector.tcc	text/plain	28.95 KB	-rw-r--r--	2025-08-26 09:45:00

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