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      1 // Vector implementation (out of line) -*- C++ -*-
      2 
      3 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
      4 // 2011 Free Software Foundation, Inc.
      5 //
      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 3, or (at your option)
     10 // any later version.
     11 
     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.
     16 
     17 // Under Section 7 of GPL version 3, you are granted additional
     18 // permissions described in the GCC Runtime Library Exception, version
     19 // 3.1, as published by the Free Software Foundation.
     20 
     21 // You should have received a copy of the GNU General Public License and
     22 // a copy of the GCC Runtime Library Exception along with this program;
     23 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     24 // <http://www.gnu.org/licenses/>.
     25 
     26 /*
     27  *
     28  * Copyright (c) 1994
     29  * Hewlett-Packard Company
     30  *
     31  * Permission to use, copy, modify, distribute and sell this software
     32  * and its documentation for any purpose is hereby granted without fee,
     33  * provided that the above copyright notice appear in all copies and
     34  * that both that copyright notice and this permission notice appear
     35  * in supporting documentation.  Hewlett-Packard Company makes no
     36  * representations about the suitability of this software for any
     37  * purpose.  It is provided "as is" without express or implied warranty.
     38  *
     39  *
     40  * Copyright (c) 1996
     41  * Silicon Graphics Computer Systems, Inc.
     42  *
     43  * Permission to use, copy, modify, distribute and sell this software
     44  * and its documentation for any purpose is hereby granted without fee,
     45  * provided that the above copyright notice appear in all copies and
     46  * that both that copyright notice and this permission notice appear
     47  * in supporting documentation.  Silicon Graphics makes no
     48  * representations about the suitability of this  software for any
     49  * purpose.  It is provided "as is" without express or implied warranty.
     50  */
     51 
     52 /** @file bits/vector.tcc
     53  *  This is an internal header file, included by other library headers.
     54  *  Do not attempt to use it directly. @headername{vector}
     55  */
     56 
     57 #ifndef _VECTOR_TCC
     58 #define _VECTOR_TCC 1
     59 
     60 namespace std _GLIBCXX_VISIBILITY(default)
     61 {
     62 _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
     63 
     64   template<typename _Tp, typename _Alloc>
     65     void
     66     vector<_Tp, _Alloc>::
     67     reserve(size_type __n)
     68     {
     69       if (__n > this->max_size())
     70 	__throw_length_error(__N("vector::reserve"));
     71       if (this->capacity() < __n)
     72 	{
     73 	  const size_type __old_size = size();
     74 	  pointer __tmp = _M_allocate_and_copy(__n,
     75 		 _GLIBCXX_MAKE_MOVE_ITERATOR(this->_M_impl._M_start),
     76 		 _GLIBCXX_MAKE_MOVE_ITERATOR(this->_M_impl._M_finish));
     77 	  std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
     78 			_M_get_Tp_allocator());
     79 	  _M_deallocate(this->_M_impl._M_start,
     80 			this->_M_impl._M_end_of_storage
     81 			- this->_M_impl._M_start);
     82 	  this->_M_impl._M_start = __tmp;
     83 	  this->_M_impl._M_finish = __tmp + __old_size;
     84 	  this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
     85 	}
     86     }
     87 
     88 #ifdef __GXX_EXPERIMENTAL_CXX0X__
     89   template<typename _Tp, typename _Alloc>
     90     template<typename... _Args>
     91       void
     92       vector<_Tp, _Alloc>::
     93       emplace_back(_Args&&... __args)
     94       {
     95 	if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
     96 	  {
     97 	    this->_M_impl.construct(this->_M_impl._M_finish,
     98 				    std::forward<_Args>(__args)...);
     99 	    ++this->_M_impl._M_finish;
    100 	  }
    101 	else
    102 	  _M_insert_aux(end(), std::forward<_Args>(__args)...);
    103       }
    104 #endif
    105 
    106   template<typename _Tp, typename _Alloc>
    107     typename vector<_Tp, _Alloc>::iterator
    108     vector<_Tp, _Alloc>::
    109     insert(iterator __position, const value_type& __x)
    110     {
    111       const size_type __n = __position - begin();
    112       if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage
    113 	  && __position == end())
    114 	{
    115 	  this->_M_impl.construct(this->_M_impl._M_finish, __x);
    116 	  ++this->_M_impl._M_finish;
    117 	}
    118       else
    119 	{
    120 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    121 	  if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
    122 	    {
    123 	      _Tp __x_copy = __x;
    124 	      _M_insert_aux(__position, std::move(__x_copy));
    125 	    }
    126 	  else
    127 #endif
    128 	    _M_insert_aux(__position, __x);
    129 	}
    130       return iterator(this->_M_impl._M_start + __n);
    131     }
    132 
    133   template<typename _Tp, typename _Alloc>
    134     typename vector<_Tp, _Alloc>::iterator
    135     vector<_Tp, _Alloc>::
    136     erase(iterator __position)
    137     {
    138       if (__position + 1 != end())
    139 	_GLIBCXX_MOVE3(__position + 1, end(), __position);
    140       --this->_M_impl._M_finish;
    141       this->_M_impl.destroy(this->_M_impl._M_finish);
    142       return __position;
    143     }
    144 
    145   template<typename _Tp, typename _Alloc>
    146     typename vector<_Tp, _Alloc>::iterator
    147     vector<_Tp, _Alloc>::
    148     erase(iterator __first, iterator __last)
    149     {
    150       if (__first != __last)
    151 	{
    152 	  if (__last != end())
    153 	    _GLIBCXX_MOVE3(__last, end(), __first);
    154 	  _M_erase_at_end(__first.base() + (end() - __last));
    155 	}
    156       return __first;
    157     }
    158 
    159   template<typename _Tp, typename _Alloc>
    160     vector<_Tp, _Alloc>&
    161     vector<_Tp, _Alloc>::
    162     operator=(const vector<_Tp, _Alloc>& __x)
    163     {
    164 #if __google_stl_debug_dangling_vector
    165       if (!this->_M_is_valid() || !__x._M_is_valid())
    166 	__throw_logic_error("operator=() on corrupt (dangling?) vector");
    167 #endif
    168       if (&__x != this)
    169 	{
    170 	  const size_type __xlen = __x.size();
    171 	  if (__xlen > capacity())
    172 	    {
    173 	      pointer __tmp = _M_allocate_and_copy(__xlen, __x.begin(),
    174 						   __x.end());
    175 	      std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
    176 			    _M_get_Tp_allocator());
    177 	      _M_deallocate(this->_M_impl._M_start,
    178 			    this->_M_impl._M_end_of_storage
    179 			    - this->_M_impl._M_start);
    180 	      this->_M_impl._M_start = __tmp;
    181 	      this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __xlen;
    182 	    }
    183 	  else if (size() >= __xlen)
    184 	    {
    185 	      std::_Destroy(std::copy(__x.begin(), __x.end(), begin()),
    186 			    end(), _M_get_Tp_allocator());
    187 	    }
    188 	  else
    189 	    {
    190 	      std::copy(__x._M_impl._M_start, __x._M_impl._M_start + size(),
    191 			this->_M_impl._M_start);
    192 	      std::__uninitialized_copy_a(__x._M_impl._M_start + size(),
    193 					  __x._M_impl._M_finish,
    194 					  this->_M_impl._M_finish,
    195 					  _M_get_Tp_allocator());
    196 	    }
    197 	  this->_M_impl._M_finish = this->_M_impl._M_start + __xlen;
    198 	}
    199       return *this;
    200     }
    201 
    202   template<typename _Tp, typename _Alloc>
    203     void
    204     vector<_Tp, _Alloc>::
    205     _M_fill_assign(size_t __n, const value_type& __val)
    206     {
    207       if (__n > capacity())
    208 	{
    209 	  vector __tmp(__n, __val, _M_get_Tp_allocator());
    210 	  __tmp.swap(*this);
    211 	}
    212       else if (__n > size())
    213 	{
    214 	  std::fill(begin(), end(), __val);
    215 	  std::__uninitialized_fill_n_a(this->_M_impl._M_finish,
    216 					__n - size(), __val,
    217 					_M_get_Tp_allocator());
    218 	  this->_M_impl._M_finish += __n - size();
    219 	}
    220       else
    221         _M_erase_at_end(std::fill_n(this->_M_impl._M_start, __n, __val));
    222     }
    223 
    224   template<typename _Tp, typename _Alloc>
    225     template<typename _InputIterator>
    226       void
    227       vector<_Tp, _Alloc>::
    228       _M_assign_aux(_InputIterator __first, _InputIterator __last,
    229 		    std::input_iterator_tag)
    230       {
    231 	pointer __cur(this->_M_impl._M_start);
    232 	for (; __first != __last && __cur != this->_M_impl._M_finish;
    233 	     ++__cur, ++__first)
    234 	  *__cur = *__first;
    235 	if (__first == __last)
    236 	  _M_erase_at_end(__cur);
    237 	else
    238 	  insert(end(), __first, __last);
    239       }
    240 
    241   template<typename _Tp, typename _Alloc>
    242     template<typename _ForwardIterator>
    243       void
    244       vector<_Tp, _Alloc>::
    245       _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last,
    246 		    std::forward_iterator_tag)
    247       {
    248 	const size_type __len = std::distance(__first, __last);
    249 
    250 	if (__len > capacity())
    251 	  {
    252 	    pointer __tmp(_M_allocate_and_copy(__len, __first, __last));
    253 	    std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
    254 			  _M_get_Tp_allocator());
    255 	    _M_deallocate(this->_M_impl._M_start,
    256 			  this->_M_impl._M_end_of_storage
    257 			  - this->_M_impl._M_start);
    258 	    this->_M_impl._M_start = __tmp;
    259 	    this->_M_impl._M_finish = this->_M_impl._M_start + __len;
    260 	    this->_M_impl._M_end_of_storage = this->_M_impl._M_finish;
    261 	  }
    262 	else if (size() >= __len)
    263 	  _M_erase_at_end(std::copy(__first, __last, this->_M_impl._M_start));
    264 	else
    265 	  {
    266 	    _ForwardIterator __mid = __first;
    267 	    std::advance(__mid, size());
    268 	    std::copy(__first, __mid, this->_M_impl._M_start);
    269 	    this->_M_impl._M_finish =
    270 	      std::__uninitialized_copy_a(__mid, __last,
    271 					  this->_M_impl._M_finish,
    272 					  _M_get_Tp_allocator());
    273 	  }
    274       }
    275 
    276 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    277   template<typename _Tp, typename _Alloc>
    278     template<typename... _Args>
    279       typename vector<_Tp, _Alloc>::iterator
    280       vector<_Tp, _Alloc>::
    281       emplace(iterator __position, _Args&&... __args)
    282       {
    283 	const size_type __n = __position - begin();
    284 	if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage
    285 	    && __position == end())
    286 	  {
    287 	    this->_M_impl.construct(this->_M_impl._M_finish,
    288 				    std::forward<_Args>(__args)...);
    289 	    ++this->_M_impl._M_finish;
    290 	  }
    291 	else
    292 	  _M_insert_aux(__position, std::forward<_Args>(__args)...);
    293 	return iterator(this->_M_impl._M_start + __n);
    294       }
    295 
    296   template<typename _Tp, typename _Alloc>
    297     template<typename... _Args>
    298       void
    299       vector<_Tp, _Alloc>::
    300       _M_insert_aux(iterator __position, _Args&&... __args)
    301 #else
    302   template<typename _Tp, typename _Alloc>
    303     void
    304     vector<_Tp, _Alloc>::
    305     _M_insert_aux(iterator __position, const _Tp& __x)
    306 #endif
    307     {
    308       if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage)
    309 	{
    310 	  this->_M_impl.construct(this->_M_impl._M_finish,
    311 				  _GLIBCXX_MOVE(*(this->_M_impl._M_finish
    312 						  - 1)));
    313 	  ++this->_M_impl._M_finish;
    314 #ifndef __GXX_EXPERIMENTAL_CXX0X__
    315 	  _Tp __x_copy = __x;
    316 #endif
    317 	  _GLIBCXX_MOVE_BACKWARD3(__position.base(),
    318 				  this->_M_impl._M_finish - 2,
    319 				  this->_M_impl._M_finish - 1);
    320 #ifndef __GXX_EXPERIMENTAL_CXX0X__
    321 	  *__position = __x_copy;
    322 #else
    323 	  *__position = _Tp(std::forward<_Args>(__args)...);
    324 #endif
    325 	}
    326       else
    327 	{
    328 	  const size_type __len =
    329 	    _M_check_len(size_type(1), "vector::_M_insert_aux");
    330 	  const size_type __elems_before = __position - begin();
    331 	  pointer __new_start(this->_M_allocate(__len));
    332 	  pointer __new_finish(__new_start);
    333 	  __try
    334 	    {
    335 	      // The order of the three operations is dictated by the C++0x
    336 	      // case, where the moves could alter a new element belonging
    337 	      // to the existing vector.  This is an issue only for callers
    338 	      // taking the element by const lvalue ref (see 23.1/13).
    339 	      this->_M_impl.construct(__new_start + __elems_before,
    340 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    341 				      std::forward<_Args>(__args)...);
    342 #else
    343 	                              __x);
    344 #endif
    345 	      __new_finish = 0;
    346 
    347 	      __new_finish =
    348 		std::__uninitialized_move_a(this->_M_impl._M_start,
    349 					    __position.base(), __new_start,
    350 					    _M_get_Tp_allocator());
    351 	      ++__new_finish;
    352 
    353 	      __new_finish =
    354 		std::__uninitialized_move_a(__position.base(),
    355 					    this->_M_impl._M_finish,
    356 					    __new_finish,
    357 					    _M_get_Tp_allocator());
    358 	    }
    359           __catch(...)
    360 	    {
    361 	      if (!__new_finish)
    362 		this->_M_impl.destroy(__new_start + __elems_before);
    363 	      else
    364 		std::_Destroy(__new_start, __new_finish, _M_get_Tp_allocator());
    365 	      _M_deallocate(__new_start, __len);
    366 	      __throw_exception_again;
    367 	    }
    368 	  std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
    369 			_M_get_Tp_allocator());
    370 	  _M_deallocate(this->_M_impl._M_start,
    371 			this->_M_impl._M_end_of_storage
    372 			- this->_M_impl._M_start);
    373 	  this->_M_impl._M_start = __new_start;
    374 	  this->_M_impl._M_finish = __new_finish;
    375 	  this->_M_impl._M_end_of_storage = __new_start + __len;
    376 	}
    377     }
    378 
    379   template<typename _Tp, typename _Alloc>
    380     void
    381     vector<_Tp, _Alloc>::
    382     _M_fill_insert(iterator __position, size_type __n, const value_type& __x)
    383     {
    384       if (__n != 0)
    385 	{
    386 	  if (size_type(this->_M_impl._M_end_of_storage
    387 			- this->_M_impl._M_finish) >= __n)
    388 	    {
    389 	      value_type __x_copy = __x;
    390 	      const size_type __elems_after = end() - __position;
    391 	      pointer __old_finish(this->_M_impl._M_finish);
    392 	      if (__elems_after > __n)
    393 		{
    394 		  std::__uninitialized_move_a(this->_M_impl._M_finish - __n,
    395 					      this->_M_impl._M_finish,
    396 					      this->_M_impl._M_finish,
    397 					      _M_get_Tp_allocator());
    398 		  this->_M_impl._M_finish += __n;
    399 		  _GLIBCXX_MOVE_BACKWARD3(__position.base(),
    400 					  __old_finish - __n, __old_finish);
    401 		  std::fill(__position.base(), __position.base() + __n,
    402 			    __x_copy);
    403 		}
    404 	      else
    405 		{
    406 		  std::__uninitialized_fill_n_a(this->_M_impl._M_finish,
    407 						__n - __elems_after,
    408 						__x_copy,
    409 						_M_get_Tp_allocator());
    410 		  this->_M_impl._M_finish += __n - __elems_after;
    411 		  std::__uninitialized_move_a(__position.base(), __old_finish,
    412 					      this->_M_impl._M_finish,
    413 					      _M_get_Tp_allocator());
    414 		  this->_M_impl._M_finish += __elems_after;
    415 		  std::fill(__position.base(), __old_finish, __x_copy);
    416 		}
    417 	    }
    418 	  else
    419 	    {
    420 	      const size_type __len =
    421 		_M_check_len(__n, "vector::_M_fill_insert");
    422 	      const size_type __elems_before = __position - begin();
    423 	      pointer __new_start(this->_M_allocate(__len));
    424 	      pointer __new_finish(__new_start);
    425 	      __try
    426 		{
    427 		  // See _M_insert_aux above.
    428 		  std::__uninitialized_fill_n_a(__new_start + __elems_before,
    429 						__n, __x,
    430 						_M_get_Tp_allocator());
    431 		  __new_finish = 0;
    432 
    433 		  __new_finish =
    434 		    std::__uninitialized_move_a(this->_M_impl._M_start,
    435 						__position.base(),
    436 						__new_start,
    437 						_M_get_Tp_allocator());
    438 		  __new_finish += __n;
    439 
    440 		  __new_finish =
    441 		    std::__uninitialized_move_a(__position.base(),
    442 						this->_M_impl._M_finish,
    443 						__new_finish,
    444 						_M_get_Tp_allocator());
    445 		}
    446 	      __catch(...)
    447 		{
    448 		  if (!__new_finish)
    449 		    std::_Destroy(__new_start + __elems_before,
    450 				  __new_start + __elems_before + __n,
    451 				  _M_get_Tp_allocator());
    452 		  else
    453 		    std::_Destroy(__new_start, __new_finish,
    454 				  _M_get_Tp_allocator());
    455 		  _M_deallocate(__new_start, __len);
    456 		  __throw_exception_again;
    457 		}
    458 	      std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
    459 			    _M_get_Tp_allocator());
    460 	      _M_deallocate(this->_M_impl._M_start,
    461 			    this->_M_impl._M_end_of_storage
    462 			    - this->_M_impl._M_start);
    463 	      this->_M_impl._M_start = __new_start;
    464 	      this->_M_impl._M_finish = __new_finish;
    465 	      this->_M_impl._M_end_of_storage = __new_start + __len;
    466 	    }
    467 	}
    468     }
    469 
    470 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    471   template<typename _Tp, typename _Alloc>
    472     void
    473     vector<_Tp, _Alloc>::
    474     _M_default_append(size_type __n)
    475     {
    476       if (__n != 0)
    477 	{
    478 	  if (size_type(this->_M_impl._M_end_of_storage
    479 			- this->_M_impl._M_finish) >= __n)
    480 	    {
    481 	      std::__uninitialized_default_n_a(this->_M_impl._M_finish,
    482 					       __n, _M_get_Tp_allocator());
    483 	      this->_M_impl._M_finish += __n;
    484 	    }
    485 	  else
    486 	    {
    487 	      const size_type __len =
    488 		_M_check_len(__n, "vector::_M_default_append");
    489 	      const size_type __old_size = this->size();
    490 	      pointer __new_start(this->_M_allocate(__len));
    491 	      pointer __new_finish(__new_start);
    492 	      __try
    493 		{
    494 		  __new_finish =
    495 		    std::__uninitialized_move_a(this->_M_impl._M_start,
    496 						this->_M_impl._M_finish,
    497 						__new_start,
    498 						_M_get_Tp_allocator());
    499 		  std::__uninitialized_default_n_a(__new_finish, __n,
    500 						   _M_get_Tp_allocator());
    501 		  __new_finish += __n;
    502 		}
    503 	      __catch(...)
    504 		{
    505 		  std::_Destroy(__new_start, __new_finish,
    506 				_M_get_Tp_allocator());
    507 		  _M_deallocate(__new_start, __len);
    508 		  __throw_exception_again;
    509 		}
    510 	      std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
    511 			    _M_get_Tp_allocator());
    512 	      _M_deallocate(this->_M_impl._M_start,
    513 			    this->_M_impl._M_end_of_storage
    514 			    - this->_M_impl._M_start);
    515 	      this->_M_impl._M_start = __new_start;
    516 	      this->_M_impl._M_finish = __new_finish;
    517 	      this->_M_impl._M_end_of_storage = __new_start + __len;
    518 	    }
    519 	}
    520     }
    521 #endif
    522 
    523   template<typename _Tp, typename _Alloc>
    524     template<typename _InputIterator>
    525       void
    526       vector<_Tp, _Alloc>::
    527       _M_range_insert(iterator __pos, _InputIterator __first,
    528 		      _InputIterator __last, std::input_iterator_tag)
    529       {
    530 	for (; __first != __last; ++__first)
    531 	  {
    532 	    __pos = insert(__pos, *__first);
    533 	    ++__pos;
    534 	  }
    535       }
    536 
    537   template<typename _Tp, typename _Alloc>
    538     template<typename _ForwardIterator>
    539       void
    540       vector<_Tp, _Alloc>::
    541       _M_range_insert(iterator __position, _ForwardIterator __first,
    542 		      _ForwardIterator __last, std::forward_iterator_tag)
    543       {
    544 	if (__first != __last)
    545 	  {
    546 	    const size_type __n = std::distance(__first, __last);
    547 	    if (size_type(this->_M_impl._M_end_of_storage
    548 			  - this->_M_impl._M_finish) >= __n)
    549 	      {
    550 		const size_type __elems_after = end() - __position;
    551 		pointer __old_finish(this->_M_impl._M_finish);
    552 		if (__elems_after > __n)
    553 		  {
    554 		    std::__uninitialized_move_a(this->_M_impl._M_finish - __n,
    555 						this->_M_impl._M_finish,
    556 						this->_M_impl._M_finish,
    557 						_M_get_Tp_allocator());
    558 		    this->_M_impl._M_finish += __n;
    559 		    _GLIBCXX_MOVE_BACKWARD3(__position.base(),
    560 					    __old_finish - __n, __old_finish);
    561 		    std::copy(__first, __last, __position);
    562 		  }
    563 		else
    564 		  {
    565 		    _ForwardIterator __mid = __first;
    566 		    std::advance(__mid, __elems_after);
    567 		    std::__uninitialized_copy_a(__mid, __last,
    568 						this->_M_impl._M_finish,
    569 						_M_get_Tp_allocator());
    570 		    this->_M_impl._M_finish += __n - __elems_after;
    571 		    std::__uninitialized_move_a(__position.base(),
    572 						__old_finish,
    573 						this->_M_impl._M_finish,
    574 						_M_get_Tp_allocator());
    575 		    this->_M_impl._M_finish += __elems_after;
    576 		    std::copy(__first, __mid, __position);
    577 		  }
    578 	      }
    579 	    else
    580 	      {
    581 		const size_type __len =
    582 		  _M_check_len(__n, "vector::_M_range_insert");
    583 		pointer __new_start(this->_M_allocate(__len));
    584 		pointer __new_finish(__new_start);
    585 		__try
    586 		  {
    587 		    __new_finish =
    588 		      std::__uninitialized_move_a(this->_M_impl._M_start,
    589 						  __position.base(),
    590 						  __new_start,
    591 						  _M_get_Tp_allocator());
    592 		    __new_finish =
    593 		      std::__uninitialized_copy_a(__first, __last,
    594 						  __new_finish,
    595 						  _M_get_Tp_allocator());
    596 		    __new_finish =
    597 		      std::__uninitialized_move_a(__position.base(),
    598 						  this->_M_impl._M_finish,
    599 						  __new_finish,
    600 						  _M_get_Tp_allocator());
    601 		  }
    602 		__catch(...)
    603 		  {
    604 		    std::_Destroy(__new_start, __new_finish,
    605 				  _M_get_Tp_allocator());
    606 		    _M_deallocate(__new_start, __len);
    607 		    __throw_exception_again;
    608 		  }
    609 		std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish,
    610 			      _M_get_Tp_allocator());
    611 		_M_deallocate(this->_M_impl._M_start,
    612 			      this->_M_impl._M_end_of_storage
    613 			      - this->_M_impl._M_start);
    614 		this->_M_impl._M_start = __new_start;
    615 		this->_M_impl._M_finish = __new_finish;
    616 		this->_M_impl._M_end_of_storage = __new_start + __len;
    617 	      }
    618 	  }
    619       }
    620 
    621 
    622   // vector<bool>
    623 
    624   template<typename _Alloc>
    625     void
    626     vector<bool, _Alloc>::
    627     reserve(size_type __n)
    628     {
    629       if (__n > this->max_size())
    630 	__throw_length_error(__N("vector::reserve"));
    631       if (this->capacity() < __n)
    632 	{
    633 	  _Bit_type* __q = this->_M_allocate(__n);
    634 	  this->_M_impl._M_finish = _M_copy_aligned(begin(), end(),
    635 						    iterator(__q, 0));
    636 	  this->_M_deallocate();
    637 	  this->_M_impl._M_start = iterator(__q, 0);
    638 	  this->_M_impl._M_end_of_storage = (__q + (__n + int(_S_word_bit) - 1)
    639 					     / int(_S_word_bit));
    640 	}
    641     }
    642 
    643   template<typename _Alloc>
    644     void
    645     vector<bool, _Alloc>::
    646     _M_fill_insert(iterator __position, size_type __n, bool __x)
    647     {
    648       if (__n == 0)
    649 	return;
    650       if (capacity() - size() >= __n)
    651 	{
    652 	  std::copy_backward(__position, end(),
    653 			     this->_M_impl._M_finish + difference_type(__n));
    654 	  std::fill(__position, __position + difference_type(__n), __x);
    655 	  this->_M_impl._M_finish += difference_type(__n);
    656 	}
    657       else
    658 	{
    659 	  const size_type __len = 
    660 	    _M_check_len(__n, "vector<bool>::_M_fill_insert");
    661 	  _Bit_type * __q = this->_M_allocate(__len);
    662 	  iterator __i = _M_copy_aligned(begin(), __position,
    663 					 iterator(__q, 0));
    664 	  std::fill(__i, __i + difference_type(__n), __x);
    665 	  this->_M_impl._M_finish = std::copy(__position, end(),
    666 					      __i + difference_type(__n));
    667 	  this->_M_deallocate();
    668 	  this->_M_impl._M_end_of_storage = (__q + ((__len
    669 						     + int(_S_word_bit) - 1)
    670 						    / int(_S_word_bit)));
    671 	  this->_M_impl._M_start = iterator(__q, 0);
    672 	}
    673     }
    674 
    675   template<typename _Alloc>
    676     template<typename _ForwardIterator>
    677       void
    678       vector<bool, _Alloc>::
    679       _M_insert_range(iterator __position, _ForwardIterator __first, 
    680 		      _ForwardIterator __last, std::forward_iterator_tag)
    681       {
    682 	if (__first != __last)
    683 	  {
    684 	    size_type __n = std::distance(__first, __last);
    685 	    if (capacity() - size() >= __n)
    686 	      {
    687 		std::copy_backward(__position, end(),
    688 				   this->_M_impl._M_finish
    689 				   + difference_type(__n));
    690 		std::copy(__first, __last, __position);
    691 		this->_M_impl._M_finish += difference_type(__n);
    692 	      }
    693 	    else
    694 	      {
    695 		const size_type __len =
    696 		  _M_check_len(__n, "vector<bool>::_M_insert_range");
    697 		_Bit_type * __q = this->_M_allocate(__len);
    698 		iterator __i = _M_copy_aligned(begin(), __position,
    699 					       iterator(__q, 0));
    700 		__i = std::copy(__first, __last, __i);
    701 		this->_M_impl._M_finish = std::copy(__position, end(), __i);
    702 		this->_M_deallocate();
    703 		this->_M_impl._M_end_of_storage = (__q
    704 						   + ((__len
    705 						       + int(_S_word_bit) - 1)
    706 						      / int(_S_word_bit)));
    707 		this->_M_impl._M_start = iterator(__q, 0);
    708 	      }
    709 	  }
    710       }
    711 
    712   template<typename _Alloc>
    713     void
    714     vector<bool, _Alloc>::
    715     _M_insert_aux(iterator __position, bool __x)
    716     {
    717       if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_of_storage)
    718 	{
    719 	  std::copy_backward(__position, this->_M_impl._M_finish, 
    720 			     this->_M_impl._M_finish + 1);
    721 	  *__position = __x;
    722 	  ++this->_M_impl._M_finish;
    723 	}
    724       else
    725 	{
    726 	  const size_type __len =
    727 	    _M_check_len(size_type(1), "vector<bool>::_M_insert_aux");
    728 	  _Bit_type * __q = this->_M_allocate(__len);
    729 	  iterator __i = _M_copy_aligned(begin(), __position,
    730 					 iterator(__q, 0));
    731 	  *__i++ = __x;
    732 	  this->_M_impl._M_finish = std::copy(__position, end(), __i);
    733 	  this->_M_deallocate();
    734 	  this->_M_impl._M_end_of_storage = (__q + ((__len
    735 						     + int(_S_word_bit) - 1)
    736 						    / int(_S_word_bit)));
    737 	  this->_M_impl._M_start = iterator(__q, 0);
    738 	}
    739     }
    740 
    741 _GLIBCXX_END_NAMESPACE_CONTAINER
    742 } // namespace std
    743 
    744 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    745 
    746 namespace std _GLIBCXX_VISIBILITY(default)
    747 {
    748 _GLIBCXX_BEGIN_NAMESPACE_VERSION
    749 
    750   template<typename _Alloc>
    751     size_t
    752     hash<_GLIBCXX_STD_C::vector<bool, _Alloc>>::
    753     operator()(const _GLIBCXX_STD_C::vector<bool, _Alloc>& __b) const noexcept
    754     {
    755       size_t __hash = 0;
    756       using _GLIBCXX_STD_C::_S_word_bit;
    757       using _GLIBCXX_STD_C::_Bit_type;
    758 
    759       const size_t __words = __b.size() / _S_word_bit;
    760       if (__words)
    761 	{
    762 	  const size_t __clength = __words * sizeof(_Bit_type);
    763 	  __hash = std::_Hash_impl::hash(__b._M_impl._M_start._M_p, __clength);
    764 	}
    765 
    766       const size_t __extrabits = __b.size() % _S_word_bit;
    767       if (__extrabits)
    768 	{
    769 	  _Bit_type __hiword = *__b._M_impl._M_finish._M_p;
    770 	  __hiword &= ~((~static_cast<_Bit_type>(0)) << __extrabits);
    771 
    772 	  const size_t __clength
    773 	    = (__extrabits + __CHAR_BIT__ - 1) / __CHAR_BIT__;
    774 	  if (__words)
    775 	    __hash = std::_Hash_impl::hash(&__hiword, __clength, __hash);
    776 	  else
    777 	    __hash = std::_Hash_impl::hash(&__hiword, __clength);
    778 	}
    779 
    780       return __hash;
    781     }
    782 
    783 _GLIBCXX_END_NAMESPACE_VERSION
    784 } // namespace std
    785 
    786 #endif // __GXX_EXPERIMENTAL_CXX0X__
    787 
    788 #endif /* _VECTOR_TCC */
    789