[thirdparty/gcc.git] / libstdc++-v3 / src / c++98 / locale.cc

// Copyright (C) 1997-2016 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/>.

#define _GLIBCXX_USE_CXX11_ABI 1
#include <clocale>
#include <cstring>
#include <cctype>
#include <cwctype>     // For towupper, etc.
#include <locale>
#include <ext/concurrence.h>

namespace
{
  __gnu_cxx::__mutex&
  get_locale_cache_mutex()
  {
    static __gnu_cxx::__mutex locale_cache_mutex;
    return locale_cache_mutex;
  }
} // anonymous namespace

// XXX GLIBCXX_ABI Deprecated
#ifdef _GLIBCXX_LONG_DOUBLE_COMPAT
# define _GLIBCXX_LOC_ID(mangled) extern std::locale::id mangled
_GLIBCXX_LOC_ID (_ZNSt7num_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE);
_GLIBCXX_LOC_ID (_ZNSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE);
_GLIBCXX_LOC_ID (_ZNSt9money_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE);
_GLIBCXX_LOC_ID (_ZNSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE);
# ifdef _GLIBCXX_USE_WCHAR_T
_GLIBCXX_LOC_ID (_ZNSt7num_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE);
_GLIBCXX_LOC_ID (_ZNSt7num_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE);
_GLIBCXX_LOC_ID (_ZNSt9money_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE);
_GLIBCXX_LOC_ID (_ZNSt9money_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE);
# endif
#endif

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

  // Definitions for static const data members of locale.
  const locale::category 	locale::none;
  const locale::category 	locale::ctype;
  const locale::category 	locale::numeric;
  const locale::category 	locale::collate;
  const locale::category 	locale::time;
  const locale::category 	locale::monetary;
  const locale::category 	locale::messages;
  const locale::category 	locale::all;

  // These are no longer exported.
  locale::_Impl*                locale::_S_classic;
  locale::_Impl* 		locale::_S_global;

#ifdef __GTHREADS
  __gthread_once_t 		locale::_S_once = __GTHREAD_ONCE_INIT;
#endif

  locale::locale(const locale& __other) throw()
  : _M_impl(__other._M_impl)
  { _M_impl->_M_add_reference(); }

  // This is used to initialize global and classic locales, and
  // assumes that the _Impl objects are constructed correctly.
  // The lack of a reference increment is intentional.
  locale::locale(_Impl* __ip) throw() : _M_impl(__ip)
  { }

  locale::~locale() throw()
  { _M_impl->_M_remove_reference(); }

  bool
  locale::operator==(const locale& __rhs) const throw()
  {
    // Deal first with the common cases, fast to process: refcopies,
    // unnamed (i.e., !_M_names[0]), "simple" (!_M_names[1] => all the
    // categories same name, i.e., _M_names[0]). Otherwise fall back
    // to the general locale::name().
    bool __ret;
    if (_M_impl == __rhs._M_impl)
      __ret = true;
    else if (!_M_impl->_M_names[0] || !__rhs._M_impl->_M_names[0]
	     || std::strcmp(_M_impl->_M_names[0],
			    __rhs._M_impl->_M_names[0]) != 0)
      __ret = false;
    else if (!_M_impl->_M_names[1] && !__rhs._M_impl->_M_names[1])
      __ret = true;
    else
      __ret = this->name() == __rhs.name();
    return __ret;
  }

  const locale&
  locale::operator=(const locale& __other) throw()
  {
    __other._M_impl->_M_add_reference();
    _M_impl->_M_remove_reference();
    _M_impl = __other._M_impl;
    return *this;
  }

  _GLIBCXX_DEFAULT_ABI_TAG
  string
  locale::name() const
  {
    string __ret;
    if (!_M_impl->_M_names[0])
      __ret = '*';
    else if (_M_impl->_M_check_same_name())
      __ret = _M_impl->_M_names[0];
    else
      {
	__ret.reserve(128);
	__ret += _S_categories[0];
	__ret += '=';
	__ret += _M_impl->_M_names[0];
	for (size_t __i = 1; __i < _S_categories_size; ++__i)
	  {
	    __ret += ';';
	    __ret += _S_categories[__i];
	    __ret += '=';
	    __ret += _M_impl->_M_names[__i];
	  }
      }
    return __ret;
  }

  locale::category
  locale::_S_normalize_category(category __cat)
  {
    int __ret = 0;
    if (__cat == none || ((__cat & all) && !(__cat & ~all)))
      __ret = __cat;
    else
      {
	// NB: May be a C-style "LC_ALL" category; convert.
	switch (__cat)
	  {
	  case LC_COLLATE:
	    __ret = collate;
	    break;
	  case LC_CTYPE:
	    __ret = ctype;
	    break;
	  case LC_MONETARY:
	    __ret = monetary;
	    break;
	  case LC_NUMERIC:
	    __ret = numeric;
	    break;
	  case LC_TIME:
	    __ret = time;
	    break;
#ifdef _GLIBCXX_HAVE_LC_MESSAGES
	  case LC_MESSAGES:
	    __ret = messages;
	    break;
#endif
	  case LC_ALL:
	    __ret = all;
	    break;
	  default:
	    __throw_runtime_error(__N("locale::_S_normalize_category "
				  "category not found"));
	  }
      }
    return __ret;
  }

  // locale::facet
  __c_locale locale::facet::_S_c_locale;

  const char locale::facet::_S_c_name[2] = "C";

#ifdef __GTHREADS
  __gthread_once_t locale::facet::_S_once = __GTHREAD_ONCE_INIT;
#endif

  void
  locale::facet::_S_initialize_once()
  {
    // Initialize the underlying locale model.
    _S_create_c_locale(_S_c_locale, _S_c_name);
  }

  __c_locale
  locale::facet::_S_get_c_locale()
  {
#ifdef __GTHREADS
    if (__gthread_active_p())
      __gthread_once(&_S_once, _S_initialize_once);
    else
#endif
      {
	if (!_S_c_locale)
	  _S_initialize_once();
      }
    return _S_c_locale;
  }

  const char*
  locale::facet::_S_get_c_name() throw()
  { return _S_c_name; }

  locale::facet::
  ~facet() { }

  // locale::_Impl
  locale::_Impl::
  ~_Impl() throw()
  {
    if (_M_facets)
      for (size_t __i = 0; __i < _M_facets_size; ++__i)
	if (_M_facets[__i])
	  _M_facets[__i]->_M_remove_reference();
    delete [] _M_facets;

    if (_M_caches)
      for (size_t __i = 0; __i < _M_facets_size; ++__i)
	if (_M_caches[__i])
	  _M_caches[__i]->_M_remove_reference();
    delete [] _M_caches;

    if (_M_names)
      for (size_t __i = 0; __i < _S_categories_size; ++__i)
	delete [] _M_names[__i];
    delete [] _M_names;
  }

  // Clone existing _Impl object.
  locale::_Impl::
  _Impl(const _Impl& __imp, size_t __refs)
  : _M_refcount(__refs), _M_facets(0), _M_facets_size(__imp._M_facets_size),
  _M_caches(0), _M_names(0)
  {
    __try
      {
	_M_facets = new const facet*[_M_facets_size];
	for (size_t __i = 0; __i < _M_facets_size; ++__i)
	  {
	    _M_facets[__i] = __imp._M_facets[__i];
	    if (_M_facets[__i])
	      _M_facets[__i]->_M_add_reference();
	  }
	_M_caches = new const facet*[_M_facets_size];
	for (size_t __j = 0; __j < _M_facets_size; ++__j)
	  {
	    _M_caches[__j] = __imp._M_caches[__j];
	    if (_M_caches[__j])
	      _M_caches[__j]->_M_add_reference();
	  }
	_M_names = new char*[_S_categories_size];
	for (size_t __k = 0; __k < _S_categories_size; ++__k)
	  _M_names[__k] = 0;

	// Name the categories.
	for (size_t __l = 0; (__l < _S_categories_size
			      && __imp._M_names[__l]); ++__l)
	  {
	    const size_t __len = std::strlen(__imp._M_names[__l]) + 1;
	    _M_names[__l] = new char[__len];
	    std::memcpy(_M_names[__l], __imp._M_names[__l], __len);
	  }
      }
    __catch(...)
      {
	this->~_Impl();
	__throw_exception_again;
      }
  }

  void
  locale::_Impl::
  _M_replace_category(const _Impl* __imp,
		      const locale::id* const* __idpp)
  {
    for (; *__idpp; ++__idpp)
      _M_replace_facet(__imp, *__idpp);
  }

  void
  locale::_Impl::
  _M_replace_facet(const _Impl* __imp, const locale::id* __idp)
  {
    size_t __index = __idp->_M_id();
    if ((__index > (__imp->_M_facets_size - 1))
	|| !__imp->_M_facets[__index])
      __throw_runtime_error(__N("locale::_Impl::_M_replace_facet"));
    _M_install_facet(__idp, __imp->_M_facets[__index]);
  }

  void
  locale::_Impl::
  _M_install_facet(const locale::id* __idp, const facet* __fp)
  {
    if (__fp)
      {
	size_t __index = __idp->_M_id();

	// Check size of facet vector to ensure adequate room.
	if (__index > _M_facets_size - 1)
	  {
	    const size_t __new_size = __index + 4;

	    // New facet array.
	    const facet** __oldf = _M_facets;
	    const facet** __newf;
	    __newf = new const facet*[__new_size];
	    for (size_t __i = 0; __i < _M_facets_size; ++__i)
	      __newf[__i] = _M_facets[__i];
	    for (size_t __l = _M_facets_size; __l < __new_size; ++__l)
	      __newf[__l] = 0;

	    // New cache array.
	    const facet** __oldc = _M_caches;
	    const facet** __newc;
	    __try
	      {
		__newc = new const facet*[__new_size];
	      }
	    __catch(...)
	      {
		delete [] __newf;
		__throw_exception_again;
	      }
	    for (size_t __j = 0; __j < _M_facets_size; ++__j)
	      __newc[__j] = _M_caches[__j];
	    for (size_t __k = _M_facets_size; __k < __new_size; ++__k)
	      __newc[__k] = 0;

	    _M_facets_size = __new_size;
	    _M_facets = __newf;
	    _M_caches = __newc;
	    delete [] __oldf;
	    delete [] __oldc;
	  }

	__fp->_M_add_reference();
	const facet*& __fpr = _M_facets[__index];
	if (__fpr)
	  {
#if _GLIBCXX_USE_DUAL_ABI
            // If this is a twinned facet replace its twin with a shim.
            for (const id* const* p = _S_twinned_facets; *p != 0; p += 2)
              {
                if (p[0]->_M_id() == __index)
                  {
                    // replacing the old ABI facet, also replace new ABI twin
                    const facet*& __fpr2 = _M_facets[p[1]->_M_id()];
                    if (__fpr2)
                      {
                        const facet* __fp2 = __fp->_M_sso_shim(p[1]);
                        __fp2->_M_add_reference();
                        __fpr2->_M_remove_reference();
                        __fpr2 = __fp2;
                      }
                    break;
                  }
                else if (p[1]->_M_id() == __index)
                  {
                    // replacing the new ABI facet, also replace old ABI twin
                    const facet*& __fpr2 = _M_facets[p[0]->_M_id()];
                    if (__fpr2)
                      {
                        const facet* __fp2 = __fp->_M_cow_shim(p[0]);
                        __fp2->_M_add_reference();
                        __fpr2->_M_remove_reference();
                        __fpr2 = __fp2;
                      }
                    break;
                  }
              }
#endif
	    // Replacing an existing facet. Order matters.
	    __fpr->_M_remove_reference();
	    __fpr = __fp;
	  }
	else
	  {
	    // Installing a newly created facet into an empty
	    // _M_facets container, say a newly-constructed,
	    // swanky-fresh _Impl.
	    _M_facets[__index] = __fp;
	  }

	// Ideally, it would be nice to only remove the caches that
	// are now incorrect. However, some of the caches depend on
	// multiple facets, and we only know about one facet
	// here. It's no great loss: the first use of the new facet
	// will create a new, correctly cached facet anyway.
	for (size_t __i = 0; __i < _M_facets_size; ++__i)
	  {
	    const facet* __cpr = _M_caches[__i];
	    if (__cpr)
	      {
		__cpr->_M_remove_reference();
		_M_caches[__i] = 0;
	      }
	  }
      }
  }

  void
  locale::_Impl::
  _M_install_cache(const facet* __cache, size_t __index)
  {
    __gnu_cxx::__scoped_lock sentry(get_locale_cache_mutex());
#if _GLIBCXX_USE_DUAL_ABI
    // If this cache is for one of the facets that is instantiated twice,
    // for old and new std::string ABI, install it in both slots.
    size_t __index2 = -1;
    for (const id* const* p = _S_twinned_facets; *p != 0; p += 2)
      {
        if (p[0]->_M_id() == __index)
          {
            __index2 = p[1]->_M_id();
            break;
          }
        else if (p[1]->_M_id() == __index)
          {
            __index2 = __index;
            __index = p[0]->_M_id();
            break;
          }
      }
#endif
    if (_M_caches[__index] != 0)
      {
	// Some other thread got in first.
	delete __cache;
      }
    else
      {
	__cache->_M_add_reference();
	_M_caches[__index] = __cache;
#if _GLIBCXX_USE_DUAL_ABI
        if (__index2 != size_t(-1))
          {
            __cache->_M_add_reference();
            _M_caches[__index2] = __cache;
          }
#endif
      }
  }

  // locale::id
  // Definitions for static const data members of locale::id
  _Atomic_word locale::id::_S_refcount;  // init'd to 0 by linker

  size_t
  locale::id::_M_id() const throw()
  {
    if (!_M_index)
      {
	// XXX GLIBCXX_ABI Deprecated
#ifdef _GLIBCXX_LONG_DOUBLE_COMPAT
	locale::id *f = 0;
# define _GLIBCXX_SYNC_ID(facet, mangled) \
	if (this == &::mangled)				\
	  f = &facet::id
	_GLIBCXX_SYNC_ID (num_get<char>, _ZNSt7num_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	_GLIBCXX_SYNC_ID (num_put<char>, _ZNSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	_GLIBCXX_SYNC_ID (money_get<char>, _ZNSt9money_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	_GLIBCXX_SYNC_ID (money_put<char>, _ZNSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE);
# ifdef _GLIBCXX_USE_WCHAR_T
	_GLIBCXX_SYNC_ID (num_get<wchar_t>, _ZNSt7num_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	_GLIBCXX_SYNC_ID (num_put<wchar_t>, _ZNSt7num_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	_GLIBCXX_SYNC_ID (money_get<wchar_t>, _ZNSt9money_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	_GLIBCXX_SYNC_ID (money_put<wchar_t>, _ZNSt9money_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE);
# endif
	if (f)
	  _M_index = 1 + f->_M_id();
	else
#endif
	  _M_index = 1 + __gnu_cxx::__exchange_and_add_dispatch(&_S_refcount,
								1);
      }
    return _M_index - 1;
  }

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
Commit	Line	Data
818ab71a	1	// Copyright (C) 1997-2016 Free Software Foundation, Inc.
b2dad0e3 BK	2	//
	3	// This file is part of the GNU ISO C++ Library. This library is free
	4	// software; you can redistribute it and/or modify it under the
	5	// terms of the GNU General Public License as published by the
748086b7	6	// Free Software Foundation; either version 3, or (at your option)
b2dad0e3 BK	7	// any later version.
	8
	9	// This library is distributed in the hope that it will be useful,
	10	// but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	// GNU General Public License for more details.
	13
748086b7 JJ	14	// Under Section 7 of GPL version 3, you are granted additional
	15	// permissions described in the GCC Runtime Library Exception, version
	16	// 3.1, as published by the Free Software Foundation.
b2dad0e3	17
748086b7 JJ	18	// You should have received a copy of the GNU General Public License and
	19	// a copy of the GCC Runtime Library Exception along with this program;
	20	// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
	21	// <http://www.gnu.org/licenses/>.
b2dad0e3	22
34a2b755	23	#define _GLIBCXX_USE_CXX11_ABI 1
54c1bf78 BK	24	#include <clocale>
54c1bf78 BK	25	#include <cstring>
54c1bf78	26	#include <cctype>
d3a193e3	27	#include <cwctype> // For towupper, etc.
54c1bf78	28	#include <locale>
2e362c74	29	#include <ext/concurrence.h>
18c75543	30
b82f782b	31	namespace
18c75543	32	{
99827523 BK	33	__gnu_cxx::__mutex&
	34	get_locale_cache_mutex()
	35	{
	36	static __gnu_cxx::__mutex locale_cache_mutex;
	37	return locale_cache_mutex;
	38	}
2e362c74	39	} // anonymous namespace
17325050	40
6defecc2 JJ	41	// XXX GLIBCXX_ABI Deprecated
	42	#ifdef _GLIBCXX_LONG_DOUBLE_COMPAT
	43	# define _GLIBCXX_LOC_ID(mangled) extern std::locale::id mangled
	44	_GLIBCXX_LOC_ID (_ZNSt7num_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	45	_GLIBCXX_LOC_ID (_ZNSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	46	_GLIBCXX_LOC_ID (_ZNSt9money_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	47	_GLIBCXX_LOC_ID (_ZNSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	48	# ifdef _GLIBCXX_USE_WCHAR_T
	49	_GLIBCXX_LOC_ID (_ZNSt7num_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	50	_GLIBCXX_LOC_ID (_ZNSt7num_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	51	_GLIBCXX_LOC_ID (_ZNSt9money_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	52	_GLIBCXX_LOC_ID (_ZNSt9money_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	53	# endif
	54	#endif
	55
12ffa228 BK	56	namespace std _GLIBCXX_VISIBILITY(default)
	57	{
	58	_GLIBCXX_BEGIN_NAMESPACE_VERSION
3cbc7af0	59
0479a462	60	// Definitions for static const data members of locale.
b75bedeb	61	const locale::category locale::none;
b75bedeb	62	const locale::category locale::ctype;
b75bedeb	63	const locale::category locale::numeric;
0a31609b	64	const locale::category locale::collate;
b75bedeb	65	const locale::category locale::time;
0a31609b	66	const locale::category locale::monetary;
b75bedeb BK	67	const locale::category locale::messages;
	68	const locale::category locale::all;
	69
8099b2ae	70	// These are no longer exported.
8ae81136	71	locale::_Impl* locale::_S_classic;
f92ab29f	72	locale::_Impl* locale::_S_global;
0479a462	73
8ae81136 BK	74	#ifdef __GTHREADS
	75	__gthread_once_t locale::_S_once = __GTHREAD_ONCE_INIT;
	76	#endif
	77
0214010c	78	locale::locale(const locale& __other) throw()
26c691a8 BK	79	: _M_impl(__other._M_impl)
26c691a8 BK	80	{ _M_impl->_M_add_reference(); }
0214010c	81
1f46fc8e BK	82	// This is used to initialize global and classic locales, and
1f46fc8e BK	83	// assumes that the _Impl objects are constructed correctly.
402a402c	84	// The lack of a reference increment is intentional.
1f46fc8e BK	85	locale::locale(_Impl* __ip) throw() : _M_impl(__ip)
1f46fc8e BK	86	{ }
0214010c	87
402a402c BK	88	locale::~locale() throw()
	89	{ _M_impl->_M_remove_reference(); }
	90
0214010c BK	91	bool
	92	locale::operator==(const locale& __rhs) const throw()
	93	{
4df9c41d PC	94	// Deal first with the common cases, fast to process: refcopies,
	95	// unnamed (i.e., !_M_names[0]), "simple" (!_M_names[1] => all the
	96	// categories same name, i.e., _M_names[0]). Otherwise fall back
	97	// to the general locale::name().
	98	bool __ret;
d7ed521b	99	if (_M_impl == __rhs._M_impl)
4df9c41d PC	100	__ret = true;
	101	else if (!_M_impl->_M_names[0] \|\| !__rhs._M_impl->_M_names[0]
	102	\|\| std::strcmp(_M_impl->_M_names[0],
	103	__rhs._M_impl->_M_names[0]) != 0)
59639106	104	__ret = false;
4df9c41d PC	105	else if (!_M_impl->_M_names[1] && !__rhs._M_impl->_M_names[1])
4df9c41d PC	106	__ret = true;
d7ed521b	107	else
4df9c41d	108	__ret = this->name() == __rhs.name();
d7ed521b	109	return __ret;
0214010c BK	110	}
	111
	112	const locale&
	113	locale::operator=(const locale& __other) throw()
	114	{
	115	__other._M_impl->_M_add_reference();
	116	_M_impl->_M_remove_reference();
	117	_M_impl = __other._M_impl;
	118	return *this;
	119	}
	120
34a2b755	121	_GLIBCXX_DEFAULT_ABI_TAG
0214010c BK	122	string
	123	locale::name() const
	124	{
d3a193e3	125	string __ret;
4df9c41d PC	126	if (!_M_impl->_M_names[0])
	127	__ret = '*';
	128	else if (_M_impl->_M_check_same_name())
0214010c BK	129	__ret = _M_impl->_M_names[0];
	130	else
	131	{
4df9c41d	132	__ret.reserve(128);
aa53f832	133	__ret += _S_categories[0];
f815521c	134	__ret += '=';
f92ab29f	135	__ret += _M_impl->_M_names[0];
73c4dcc6	136	for (size_t __i = 1; __i < _S_categories_size; ++__i)
d3a193e3	137	{
f815521c	138	__ret += ';';
aa53f832	139	__ret += _S_categories[__i];
f815521c	140	__ret += '=';
aa53f832	141	__ret += _M_impl->_M_names[__i];
d3a193e3	142	}
0214010c BK	143	}
	144	return __ret;
	145	}
	146
0214010c	147	locale::category
f92ab29f	148	locale::_S_normalize_category(category __cat)
0214010c	149	{
758c46c9	150	int __ret = 0;
2a67bec2	151	if (__cat == none \|\| ((__cat & all) && !(__cat & ~all)))
0214010c BK	152	__ret = __cat;
	153	else
	154	{
	155	// NB: May be a C-style "LC_ALL" category; convert.
	156	switch (__cat)
	157	{
f92ab29f CG	158	case LC_COLLATE:
f92ab29f CG	159	__ret = collate;
0214010c	160	break;
f92ab29f	161	case LC_CTYPE:
0214010c BK	162	__ret = ctype;
0214010c BK	163	break;
f92ab29f	164	case LC_MONETARY:
0214010c BK	165	__ret = monetary;
0214010c BK	166	break;
f92ab29f	167	case LC_NUMERIC:
0214010c BK	168	__ret = numeric;
0214010c BK	169	break;
f92ab29f CG	170	case LC_TIME:
f92ab29f CG	171	__ret = time;
0214010c	172	break;
3d7c150e	173	#ifdef _GLIBCXX_HAVE_LC_MESSAGES
f92ab29f	174	case LC_MESSAGES:
0214010c BK	175	__ret = messages;
0214010c BK	176	break;
f92ab29f CG	177	#endif
f92ab29f CG	178	case LC_ALL:
0214010c BK	179	__ret = all;
	180	break;
	181	default:
ba9119ec PC	182	__throw_runtime_error(__N("locale::_S_normalize_category "
ba9119ec PC	183	"category not found"));
0214010c BK	184	}
	185	}
	186	return __ret;
	187	}
	188
c755e77d	189	// locale::facet
8ae81136 BK	190	__c_locale locale::facet::_S_c_locale;
	191
	192	const char locale::facet::_S_c_name[2] = "C";
	193
	194	#ifdef __GTHREADS
	195	__gthread_once_t locale::facet::_S_once = __GTHREAD_ONCE_INIT;
	196	#endif
1c26d8fd	197
8ae81136 BK	198	void
	199	locale::facet::_S_initialize_once()
	200	{
	201	// Initialize the underlying locale model.
	202	_S_create_c_locale(_S_c_locale, _S_c_name);
	203	}
	204
	205	__c_locale
	206	locale::facet::_S_get_c_locale()
	207	{
b87bc3aa	208	#ifdef __GTHREADS
5c109a17 BK	209	if (__gthread_active_p())
	210	__gthread_once(&_S_once, _S_initialize_once);
	211	else
8ae81136	212	#endif
5c109a17 BK	213	{
	214	if (!_S_c_locale)
	215	_S_initialize_once();
	216	}
8ae81136 BK	217	return _S_c_locale;
	218	}
	219
bb1b12ec	220	const char*
32ade559	221	locale::facet::_S_get_c_name() throw()
bb1b12ec BK	222	{ return _S_c_name; }
bb1b12ec BK	223
c755e77d BK	224	locale::facet::
c755e77d BK	225	~facet() { }
bf3b866e	226
c755e77d BK	227	// locale::_Impl
	228	locale::_Impl::
	229	~_Impl() throw()
	230	{
	231	if (_M_facets)
	232	for (size_t __i = 0; __i < _M_facets_size; ++__i)
	233	if (_M_facets[__i])
	234	_M_facets[__i]->_M_remove_reference();
	235	delete [] _M_facets;
	236
	237	if (_M_caches)
	238	for (size_t __i = 0; __i < _M_facets_size; ++__i)
	239	if (_M_caches[__i])
f92ab29f	240	_M_caches[__i]->_M_remove_reference();
c755e77d BK	241	delete [] _M_caches;
	242
	243	if (_M_names)
	244	for (size_t __i = 0; __i < _S_categories_size; ++__i)
f92ab29f	245	delete [] _M_names[__i];
c755e77d BK	246	delete [] _M_names;
c755e77d BK	247	}
bf3b866e	248
c755e77d BK	249	// Clone existing _Impl object.
	250	locale::_Impl::
	251	_Impl(const _Impl& __imp, size_t __refs)
26c691a8 BK	252	: _M_refcount(__refs), _M_facets(0), _M_facets_size(__imp._M_facets_size),
26c691a8 BK	253	_M_caches(0), _M_names(0)
c755e77d	254	{
bc2631e0	255	__try
c755e77d BK	256	{
	257	_M_facets = new const facet*[_M_facets_size];
	258	for (size_t __i = 0; __i < _M_facets_size; ++__i)
	259	{
	260	_M_facets[__i] = __imp._M_facets[__i];
	261	if (_M_facets[__i])
	262	_M_facets[__i]->_M_add_reference();
	263	}
	264	_M_caches = new const facet*[_M_facets_size];
95b147fe	265	for (size_t __j = 0; __j < _M_facets_size; ++__j)
c755e77d	266	{
95b147fe SM	267	_M_caches[__j] = __imp._M_caches[__j];
95b147fe SM	268	if (_M_caches[__j])
f92ab29f	269	_M_caches[__j]->_M_add_reference();
c755e77d BK	270	}
c755e77d BK	271	_M_names = new char*[_S_categories_size];
95b147fe SM	272	for (size_t __k = 0; __k < _S_categories_size; ++__k)
95b147fe SM	273	_M_names[__k] = 0;
c755e77d	274
4df9c41d	275	// Name the categories.
95b147fe SM	276	for (size_t __l = 0; (__l < _S_categories_size
95b147fe SM	277	&& __imp._M_names[__l]); ++__l)
c755e77d	278	{
95b147fe SM	279	const size_t __len = std::strlen(__imp._M_names[__l]) + 1;
	280	_M_names[__l] = new char[__len];
	281	std::memcpy(_M_names[__l], __imp._M_names[__l], __len);
c755e77d BK	282	}
c755e77d BK	283	}
bc2631e0	284	__catch(...)
c755e77d BK	285	{
	286	this->~_Impl();
	287	__throw_exception_again;
	288	}
	289	}
bf3b866e	290
5dc91152	291	void
c755e77d	292	locale::_Impl::
f92ab29f	293	_M_replace_category(const _Impl* __imp,
95b147fe	294	const locale::id* const* __idpp)
bf3b866e	295	{
c755e77d BK	296	for (; *__idpp; ++__idpp)
	297	_M_replace_facet(__imp, *__idpp);
	298	}
f92ab29f	299
c755e77d BK	300	void
	301	locale::_Impl::
	302	_M_replace_facet(const _Impl* __imp, const locale::id* __idp)
	303	{
	304	size_t __index = __idp->_M_id();
f92ab29f	305	if ((__index > (__imp->_M_facets_size - 1))
95b147fe	306	\|\| !__imp->_M_facets[__index])
ba9119ec	307	__throw_runtime_error(__N("locale::_Impl::_M_replace_facet"));
f92ab29f	308	_M_install_facet(__idp, __imp->_M_facets[__index]);
c755e77d BK	309	}
	310
	311	void
	312	locale::_Impl::
	313	_M_install_facet(const locale::id* __idp, const facet* __fp)
	314	{
	315	if (__fp)
	316	{
	317	size_t __index = __idp->_M_id();
	318
	319	// Check size of facet vector to ensure adequate room.
	320	if (__index > _M_facets_size - 1)
	321	{
	322	const size_t __new_size = __index + 4;
	323
	324	// New facet array.
	325	const facet** __oldf = _M_facets;
	326	const facet** __newf;
f92ab29f	327	__newf = new const facet*[__new_size];
c755e77d BK	328	for (size_t __i = 0; __i < _M_facets_size; ++__i)
c755e77d BK	329	__newf[__i] = _M_facets[__i];
95b147fe SM	330	for (size_t __l = _M_facets_size; __l < __new_size; ++__l)
95b147fe SM	331	__newf[__l] = 0;
c755e77d BK	332
	333	// New cache array.
	334	const facet** __oldc = _M_caches;
	335	const facet** __newc;
bc2631e0	336	__try
c755e77d BK	337	{
	338	__newc = new const facet*[__new_size];
	339	}
bc2631e0	340	__catch(...)
c755e77d BK	341	{
	342	delete [] __newf;
	343	__throw_exception_again;
	344	}
95b147fe SM	345	for (size_t __j = 0; __j < _M_facets_size; ++__j)
	346	__newc[__j] = _M_caches[__j];
	347	for (size_t __k = _M_facets_size; __k < __new_size; ++__k)
	348	__newc[__k] = 0;
c755e77d BK	349
	350	_M_facets_size = __new_size;
	351	_M_facets = __newf;
	352	_M_caches = __newc;
	353	delete [] __oldf;
	354	delete [] __oldc;
	355	}
	356
	357	__fp->_M_add_reference();
	358	const facet*& __fpr = _M_facets[__index];
	359	if (__fpr)
	360	{
34a2b755 JW	361	#if _GLIBCXX_USE_DUAL_ABI
	362	// If this is a twinned facet replace its twin with a shim.
	363	for (const id* const* p = _S_twinned_facets; *p != 0; p += 2)
	364	{
	365	if (p[0]->_M_id() == __index)
	366	{
	367	// replacing the old ABI facet, also replace new ABI twin
	368	const facet*& __fpr2 = _M_facets[p[1]->_M_id()];
	369	if (__fpr2)
	370	{
	371	const facet* __fp2 = __fp->_M_sso_shim(p[1]);
	372	__fp2->_M_add_reference();
	373	__fpr2->_M_remove_reference();
	374	__fpr2 = __fp2;
	375	}
	376	break;
	377	}
	378	else if (p[1]->_M_id() == __index)
	379	{
	380	// replacing the new ABI facet, also replace old ABI twin
	381	const facet*& __fpr2 = _M_facets[p[0]->_M_id()];
	382	if (__fpr2)
	383	{
	384	const facet* __fp2 = __fp->_M_cow_shim(p[0]);
	385	__fp2->_M_add_reference();
	386	__fpr2->_M_remove_reference();
	387	__fpr2 = __fp2;
	388	}
	389	break;
	390	}
	391	}
	392	#endif
c755e77d BK	393	// Replacing an existing facet. Order matters.
	394	__fpr->_M_remove_reference();
	395	__fpr = __fp;
	396	}
	397	else
	398	{
	399	// Installing a newly created facet into an empty
	400	// _M_facets container, say a newly-constructed,
	401	// swanky-fresh _Impl.
	402	_M_facets[__index] = __fp;
	403	}
	404
	405	// Ideally, it would be nice to only remove the caches that
	406	// are now incorrect. However, some of the caches depend on
	407	// multiple facets, and we only know about one facet
	408	// here. It's no great loss: the first use of the new facet
	409	// will create a new, correctly cached facet anyway.
	410	for (size_t __i = 0; __i < _M_facets_size; ++__i)
	411	{
	412	const facet* __cpr = _M_caches[__i];
	413	if (__cpr)
	414	{
	415	__cpr->_M_remove_reference();
	416	_M_caches[__i] = 0;
	417	}
	418	}
	419	}
	420	}
	421
18c75543 ILT	422	void
	423	locale::_Impl::
	424	_M_install_cache(const facet* __cache, size_t __index)
	425	{
99827523	426	__gnu_cxx::__scoped_lock sentry(get_locale_cache_mutex());
34a2b755 JW	427	#if _GLIBCXX_USE_DUAL_ABI
	428	// If this cache is for one of the facets that is instantiated twice,
	429	// for old and new std::string ABI, install it in both slots.
	430	size_t __index2 = -1;
	431	for (const id* const* p = _S_twinned_facets; *p != 0; p += 2)
	432	{
	433	if (p[0]->_M_id() == __index)
	434	{
	435	__index2 = p[1]->_M_id();
	436	break;
	437	}
	438	else if (p[1]->_M_id() == __index)
	439	{
	440	__index2 = __index;
	441	__index = p[0]->_M_id();
	442	break;
	443	}
	444	}
	445	#endif
18c75543 ILT	446	if (_M_caches[__index] != 0)
	447	{
	448	// Some other thread got in first.
	449	delete __cache;
	450	}
	451	else
	452	{
	453	__cache->_M_add_reference();
	454	_M_caches[__index] = __cache;
34a2b755 JW	455	#if _GLIBCXX_USE_DUAL_ABI
	456	if (__index2 != size_t(-1))
	457	{
	458	__cache->_M_add_reference();
	459	_M_caches[__index2] = __cache;
	460	}
	461	#endif
18c75543 ILT	462	}
	463	}
	464
c755e77d BK	465	// locale::id
c755e77d BK	466	// Definitions for static const data members of locale::id
1313d87f	467	_Atomic_word locale::id::_S_refcount; // init'd to 0 by linker
c755e77d BK	468
c755e77d BK	469	size_t
32ade559	470	locale::id::_M_id() const throw()
c755e77d BK	471	{
c755e77d BK	472	if (!_M_index)
6defecc2 JJ	473	{
	474	// XXX GLIBCXX_ABI Deprecated
	475	#ifdef _GLIBCXX_LONG_DOUBLE_COMPAT
	476	locale::id *f = 0;
	477	# define _GLIBCXX_SYNC_ID(facet, mangled) \
	478	if (this == &::mangled) \
	479	f = &facet::id
	480	_GLIBCXX_SYNC_ID (num_get<char>, _ZNSt7num_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	481	_GLIBCXX_SYNC_ID (num_put<char>, _ZNSt7num_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	482	_GLIBCXX_SYNC_ID (money_get<char>, _ZNSt9money_getIcSt19istreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	483	_GLIBCXX_SYNC_ID (money_put<char>, _ZNSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE2idE);
	484	# ifdef _GLIBCXX_USE_WCHAR_T
	485	_GLIBCXX_SYNC_ID (num_get<wchar_t>, _ZNSt7num_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	486	_GLIBCXX_SYNC_ID (num_put<wchar_t>, _ZNSt7num_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	487	_GLIBCXX_SYNC_ID (money_get<wchar_t>, _ZNSt9money_getIwSt19istreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	488	_GLIBCXX_SYNC_ID (money_put<wchar_t>, _ZNSt9money_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE2idE);
	489	# endif
	490	if (f)
	491	_M_index = 1 + f->_M_id();
	492	else
	493	#endif
b7ee72de PC	494	_M_index = 1 + __gnu_cxx::__exchange_and_add_dispatch(&_S_refcount,
b7ee72de PC	495	1);
6defecc2	496	}
c755e77d	497	return _M_index - 1;
bf3b866e	498	}
3cbc7af0	499
12ffa228 BK	500	_GLIBCXX_END_NAMESPACE_VERSION
12ffa228 BK	501	} // namespace