stdcpp/src/locale.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 02:01:42 +0200
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permissions -rw-r--r--
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/*
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 * © Portions copyright (c) 2006-2007 Nokia Corporation.  All rights reserved.
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 * Copyright (c) 1999
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 * Silicon Graphics Computer Systems, Inc.
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 *
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 * Copyright (c) 1999 
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 * Boris Fomitchev
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 *
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 * This material is provided "as is", with absolutely no warranty expressed
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 * or implied. Any use is at your own risk.
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 *
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 * Permission to use or copy this software for any purpose is hereby granted 
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 * without fee, provided the above notices are retained on all copies.
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 * Permission to modify the code and to distribute modified code is granted,
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 * provided the above notices are retained, and a notice that the code was
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 * modified is included with the above copyright notice.
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 *
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 */ 
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# include "stlport_prefix.h"
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#include <locale>
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#include <stdexcept>
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#include <stl/_algobase.h>
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#include "locale_nonclassic.h"
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#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
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#include "libstdcppwsd.h"
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# endif
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_STLP_BEGIN_NAMESPACE
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_Locale::_Locale(const _Locale_impl& L)
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  : _Locale_impl(L), _Refcount_Base(1), facets_vec((void**)L.facets, (void**)L.facets+L.size())
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{
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  for (size_t i = 1; i < L.size(); ++i) {
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    locale::facet* f = L.facets[i];
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    if (f && f->_M_delete)
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      f->_M_incr();
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  }
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  facets = (locale::facet**)&facets_vec[0];
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  _M_size = facets_vec.size();
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}
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_Locale::~_Locale() {
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  size_t sz = facets_vec.size();
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  for (size_t i = 1; i < sz ; ++i)
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    this->remove(i);
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}
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void _Locale::remove(size_t index) {
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  if (index > 0 && index < facets_vec.size()) {
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    locale::facet* old = (locale::facet*)facets_vec[index];
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    if (old && old->_M_delete) {
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      old->_M_decr(); 
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      if (old->_M_ref_count == 0)
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        delete old;
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    }
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    facets_vec[index] = 0;
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  }
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}
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locale::facet*
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_Locale::insert(locale::facet* f, size_t index, bool do_incr) {
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  if (f != 0 && index != 0) {
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    if (index >= facets_vec.size()) {
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      facets_vec.insert(facets_vec.end(),
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                        index - facets_vec.size() + 1, (void*) 0);
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      facets = (locale::facet**)&facets_vec[0];
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      _M_size = facets_vec.size();
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    }
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    if (do_incr)
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      f->_M_incr();
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    remove(index);
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    facets_vec[index] = (void*)f;
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    return f;
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  }
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  else
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    return 0;
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}
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void _Locale::insert(_Locale_impl* from, const locale::id& n) {
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  size_t index = n._M_index;
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  this->remove(index);
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  if (index > 0 && index < from->size())
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    this->insert(from->facets[index], index, true);
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}
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#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
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void locale_mutex_lock_init()
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{
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   get_locale_Index_lock()._M_lock.iState = _ENeedsNormalInit;
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   get_locale_Index_lock()._M_lock.iPtr = 0;
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   get_locale_Index_lock()._M_lock.iReentry = 0;  	
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}   
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# else 
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static _STLP_STATIC_MUTEX _Index_lock _STLP_MUTEX_INITIALIZER;
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# endif
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// Takes a reference to a locale::id, and returns its numeric index.
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// If no numeric index has yet been assigned, assigns one.  The return
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// value is always positive.
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static size_t _Stl_loc_get_index(locale::id& id)
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{
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  if (id._M_index == 0) {
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#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
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    _STLP_auto_lock sentry(get_locale_Index_lock());
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    size_t new_index = get_locale_id_S_max()++;
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# else
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	_STLP_auto_lock sentry(_Index_lock);    
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    size_t new_index = locale::id::_S_max++;
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# endif
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    id._M_index = new_index;
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  }
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  return id._M_index;
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}
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_STLP_EXP_DECLSPEC void locale::_M_insert(facet* f, locale::id& n)
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{
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  if (f)
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    ((_Locale*)_M_impl)->insert(f, _Stl_loc_get_index(n), false);
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}
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// Make a locale directly from a _Locale_impl object.  If the second argument
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// is true, we clone the _Locale_impl.  If false, we just twiddle pointers.
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_STLP_EXP_DECLSPEC locale::locale(_Locale_impl* impl, bool do_copy)
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  : _M_impl(0)
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{
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  if (do_copy) {
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    _M_impl = new _Locale(*impl);
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    _M_impl->name = "*";
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  } else
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    _M_impl = _S_copy_impl(impl);
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}
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_STLP_END_NAMESPACE