_M_reserve_map_at_front()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::deque< _Tp, _Alloc >::_M_reserve_map_at_front ( size_type __nodes_to_add = 1 )

inlineprotected

Memory-handling helpers for the major map.

Makes sure the _M_map has space for new nodes. Does not actually add the nodes. Can invalidate _M_map pointers. (And consequently, deque iterators.)

Definition at line 2318 of file stl_deque.h.

      {
      if (__nodes_to_add > size_type(this->_M_impl._M_start._M_node
                               - this->_M_impl._M_map))
        _M_reallocate_map(__nodes_to_add, true);
      }

Referenced by _M_new_elements_at_front(), and _M_push_front_aux().

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