}
    }
    __STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1, __new_finish._M_node + 1));
  }
  __stl_debug_do(_Invalidate_all());        
}

template <class _Tp, class _Alloc, size_t __bufsiz>
void
deque<_Tp,_Alloc,__bufsiz>::_M_insert_aux(iterator __pos,
                                           const_iterator __first,
                                           const_iterator __last,
                                           size_type __n)
{
  const difference_type __elemsbefore = __pos - _M_start;
  size_type __length = size();
  if (__elemsbefore < difference_type(__length / 2)) {
    iterator __new_start = _M_reserve_elements_at_front(__n);
    iterator __old_start = _M_start;
    __pos = _M_start + __elemsbefore;
    __STL_TRY {
      if (__elemsbefore >= difference_type(__n)) {
        iterator __start_n = _M_start + __n;
        uninitialized_copy(_M_start, __start_n, __new_start);
        _M_start = __new_start;
	__stl_debug_do(_M_orphan_start());
        copy(__start_n, __pos, __old_start);
        copy(__first, __last, __pos - difference_type(__n));
      }
      else {
        const_iterator __mid = __first + (__n - __elemsbefore);
        __uninitialized_copy_copy(_M_start, __pos, __first, __mid,
                                  __new_start);
        _M_start = __new_start;
	__stl_debug_do(_M_orphan_start());
        copy(__mid, __last, __old_start);
      }
    }
    __STL_UNWIND(_M_destroy_nodes(__new_start._M_node, _M_start._M_node));
  }
  else {
    iterator __new_finish = _M_reserve_elements_at_back(__n);
    iterator __old_finish = _M_finish;
    const difference_type __elemsafter = __length - __elemsbefore;
    __pos = _M_finish - __elemsafter;
    __STL_TRY {
      if (__elemsafter > difference_type(__n)) {
        iterator __finish_n = _M_finish - difference_type(__n);
        uninitialized_copy(__finish_n, _M_finish, _M_finish);
        _M_finish = __new_finish;
	__stl_debug_do(_M_orphan_finish());
        copy_backward(__pos, __finish_n, __old_finish);
        copy(__first, __last, __pos);
      }
      else {
        const_iterator __mid = __first + __elemsafter;
        __uninitialized_copy_copy(__mid, __last, __pos, _M_finish, _M_finish);
        _M_finish = __new_finish;
	__stl_debug_do(_M_orphan_finish());
        copy(__first, __mid, __pos);
      }
    }
    __STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1, __new_finish._M_node + 1));
  }
  __stl_debug_do(_Invalidate_all());        
}

#endif /* __STL_MEMBER_TEMPLATES */

template <class _Tp, class _Alloc, size_t __bufsiz>
void 
deque<_Tp,_Alloc,__bufsiz>::_M_new_elements_at_front(size_type __new_elems)
{
  size_type __new_nodes
      = (__new_elems + __buf_traits::_buf_size - 1) / __buf_traits::_buf_size;
  _M_reserve_map_at_front(__new_nodes);
  size_type __i;
  __STL_TRY {
    for (__i = 1; __i <= __new_nodes; ++__i)
      *(_M_start._M_node - __i) = _M_map_size.allocate(__buf_traits::_buf_size);
  }
#       ifdef __STL_USE_EXCEPTIONS
  catch(...) {
    for (size_type __j = 1; __j < __i; ++__j)
      _M_map_size.deallocate(*(_M_start._M_node - __j), __buf_traits::_buf_size);
    throw;
  }
#       endif /* __STL_USE_EXCEPTIONS */
}

template <class _Tp, class _Alloc, size_t __bufsiz>
void 
deque<_Tp,_Alloc,__bufsiz>::_M_new_elements_at_back(size_type __new_elems)
{
  size_type __new_nodes
      = (__new_elems + __buf_traits::_buf_size - 1) / __buf_traits::_buf_size;
  _M_reserve_map_at_back(__new_nodes);
  size_type __i;
  __STL_TRY {
    for (__i = 1; __i <= __new_nodes; ++__i)
      *(_M_finish._M_node + __i) = _M_map_size.allocate(__buf_traits::_buf_size);
  }
#       ifdef __STL_USE_EXCEPTIONS
  catch(...) {
    for (size_type __j = 1; __j < __i; ++__j)
      _M_map_size.deallocate(*(_M_finish._M_node + __j), __buf_traits::_buf_size);
    throw;
  }
#       endif /* __STL_USE_EXCEPTIONS */
}

template <class _Tp, class _Alloc, size_t __bufsiz>
void 
deque<_Tp,_Alloc,__bufsiz>::_M_reallocate_map(size_type __nodes_to_add,
                                              bool __add_at_front)
{
  size_type __old_num_nodes = _M_finish._M_node - _M_start._M_node + 1;
  size_type __new_num_nodes = __old_num_nodes + __nodes_to_add;

  _Map_pointer __new_nstart;
  if (_M_map_size._M_data > 2 * __new_num_nodes) {
    __new_nstart = _M_map._M_data + (_M_map_size._M_data - __new_num_nodes) / 2 
                     + (__add_at_front ? __nodes_to_add : 0);
    if (__new_nstart < _M_start._M_node)
      copy(_M_start._M_node, _M_finish._M_node + 1, __new_nstart);
    else
      copy_backward(_M_start._M_node, _M_finish._M_node + 1, 
                    __new_nstart + __old_num_nodes);
  }
  else {
    size_type __new_map_size = 
      _M_map_size._M_data + max((size_t)_M_map_size._M_data, __nodes_to_add) + 2;

    _Map_pointer __new_map = _M_map.allocate(__new_map_size);
    __new_nstart = __new_map + (__new_map_size - __new_num_nodes) / 2
                         + (__add_at_front ? __nodes_to_add : 0);
    copy(_M_start._M_node, _M_finish._M_node + 1, __new_nstart);
    _M_map.deallocate(_M_map._M_data, _M_map_size._M_data);

    _M_map._M_data = __new_map;
    _M_map_size._M_data = __new_map_size;
  }

  _M_start._M_set_node(__new_nstart);
  _M_finish._M_set_node(__new_nstart + __old_num_nodes - 1);
  __stl_debug_do(_Invalidate_all());        
}


#if defined (__STL_MEMBER_TEMPLATES) && ! defined (__STL_INLINE_MEMBER_TEMPLATES )
template <class _Tp, class _Alloc, size_t __bufsize>
template <class _InputIterator>
void deque<_Tp,_Alloc,__bufsize>::_M_range_initialize(_InputIterator __first,
						      _InputIterator __last,
						      input_iterator_tag) {
    _M_initialize_map(0);
    __stl_debug_do(_M_iter_list._Safe_init(&_M_start));
    __stl_debug_do(_Init_bounds());
    __STL_TRY {
      for ( ; __first != __last; ++__first)
	push_back(*__first);
    }
    __STL_UNWIND(clear());
  }
  
template <class _Tp, class _Alloc, size_t __bufsize>
template <class _ForwardIterator>
void  deque<_Tp,_Alloc,__bufsize>::_M_range_initialize(_ForwardIterator __first,
						       _ForwardIterator __last,
						       forward_iterator_tag) {
   size_type __n = 0;
   distance(__first, __last, __n);
   __stl_debug_do(_M_iter_list._Safe_init(&_M_start));
   __stl_debug_do(_Init_bounds());
   _M_initialize_map(__n);
   _Map_pointer __cur_node;
   __STL_TRY {
    for (__cur_node = _M_start._M_node; 
         __cur_node < _M_finish._M_node; 
	 ++__cur_node) {
      _ForwardIterator __mid = __first;
      advance(__mid, __buf_traits::_buf_size);
      uninitialized_copy(__first, __mid, *__cur_node);
      __first = __mid;
    }
    uninitialized_copy(__first, __last, _M_finish._M_first);
   }
# ifdef __STL_DEBUG
  __STL_UNWIND(destroy(_M_start, iterator(&_M_iter_list, *__cur_node, __cur_node)));
# else
  __STL_UNWIND(destroy(_M_start, iterator(*__cur_node, __cur_node)));
# endif
 }

template <class _Tp, class _Alloc, size_t __bufsize>
template <class _ForwardIterator>
void  deque<_Tp,_Alloc,__bufsize>::insert(iterator __pos,
					  _ForwardIterator __first,
					  _ForwardIterator __last,
					  forward_iterator_tag)
 {
  __stl_debug_check(__check_if_owner(&_M_iter_list, __pos));
  size_type __n = 0;
  distance(__first, __last, __n);
  if (__pos._M_cur == _M_start._M_cur) {
    iterator __new_start = _M_reserve_elements_at_front(__n);
    __STL_TRY {
      uninitialized_copy(__first, __last, __new_start);
      _M_start = __new_start;
      __stl_debug_do(_M_orphan_start());
    }
    __STL_UNWIND(_M_destroy_nodes(__new_start._M_node, _M_start._M_node));
  }
  else if (__pos._M_cur == _M_finish._M_cur) {
    iterator __new_finish = _M_reserve_elements_at_back(__n);
    __STL_TRY {
      uninitialized_copy(__first, __last, _M_finish);
      _M_finish = __new_finish;
      __stl_debug_do(_M_orphan_finish());
    }
    __STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1, __new_finish._M_node + 1));
  }
  else
    _M_insert_aux(__pos, __first, __last, __n);
}

template <class _Tp, class _Alloc, size_t __bufsize>
template <class _ForwardIterator>
void deque<_Tp,_Alloc,__bufsize>::_M_insert_aux(iterator __pos,
						_ForwardIterator __first,
						_ForwardIterator __last,
						size_type __n)
{
    
    const difference_type __elemsbefore = __pos - _M_start;
    size_type __length = size();
    if (__elemsbefore < difference_type(__length / 2)) {
      iterator __new_start = _M_reserve_elements_at_front(__n);
      iterator __old_start = _M_start;
      __pos = _M_start + __elemsbefore;
      __STL_TRY {
	if (__elemsbefore >= difference_type(__n)) {
	  iterator __start_n = _M_start + difference_type(__n); 
	  uninitialized_copy(_M_start, __start_n, __new_start);
	  _M_start = __new_start;
	  __stl_debug_do(_M_orphan_start());
	  copy(__start_n, __pos, __old_start);
	  copy(__first, __last, __pos - difference_type(__n));
	}
	else {
	  _ForwardIterator __mid = __first;
	  advance(__mid, difference_type(__n) - __elemsbefore);
	  __uninitialized_copy_copy(_M_start, __pos, __first, __mid,
				    __new_start);
	  _M_start = __new_start;
	  __stl_debug_do(_M_orphan_start());
	  copy(__mid, __last, __old_start);
	}
      }
      __STL_UNWIND(_M_destroy_nodes(__new_start._M_node, _M_start._M_node));
    }
    else {
      iterator __new_finish = _M_reserve_elements_at_back(__n);
      iterator __old_finish = _M_finish;
      const difference_type __elemsafter = 
	difference_type(__length) - __elemsbefore;
      __pos = _M_finish - __elemsafter;
      __STL_TRY {
      if (__elemsafter > difference_type(__n)) {
        iterator __finish_n = _M_finish - difference_type(__n);
        uninitialized_copy(__finish_n, _M_finish, _M_finish);
        _M_finish = __new_finish;
	__stl_debug_do(_M_orphan_finish());
        copy_backward(__pos, __finish_n, __old_finish);
        copy(__first, __last, __pos);
      }
      else {
        _ForwardIterator __mid = __first;
        advance(__mid, __elemsafter);
        __uninitialized_copy_copy(__mid, __last, __pos, _M_finish, _M_finish);
        _M_finish = __new_finish;
	__stl_debug_do(_M_orphan_finish());
        copy(__first, __mid, __pos);
      }
      }
      __STL_UNWIND(_M_destroy_nodes(_M_finish._M_node + 1, __new_finish._M_node + 1));
    }
    __stl_debug_do(_Invalidate_all());        
  }
# endif /* __STL_MEMBER_TEMPLATES */

__STL_END_NAMESPACE

# undef deque
# undef __iterator__
# undef iterator
# undef const_iterator
# undef size_type
# undef value_type

#if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
#pragma reset woff 1174
#pragma reset woff 1375
#endif

#endif /*  __STL_DEQUE_C */

// Local Variables:
// mode:C++
// End: