splice() [2/3]

template<typename T>

void fl::list< T >::splice ( iterator pos, list< T > & other, iterator first, iterator last )

inline

Definition at line 571 of file list.h.

                                                                          {
        if (first == last) {
            return;
        }
 
        // Count elements being moved
        fl::size count = 0;
        for (iterator it = first; it != last; ++it) {
            ++count;
        }
 
        // Unlink range from other list
        Node* first_node = first.mNode;
        Node* last_node = last.mNode;
        Node* before_first = first_node->prev;
        Node* after_last = last_node;
        Node* last_in_range = last_node->prev;
 
        // Connect the gap in other list
        before_first->next = after_last;
        after_last->prev = before_first;
 
        // Insert range before pos
        Node* pos_node = pos.mNode;
        Node* before_pos = pos_node->prev;
 
        before_pos->next = first_node;
        first_node->prev = before_pos;
        last_in_range->next = pos_node;
        pos_node->prev = last_in_range;
 
        // Update sizes
        mSize += count;
        other.mSize -= count;
    }

References list(), fl::list< T >::iterator::mNode, mSize, fl::list< T >::Node::next, pos, and fl::list< T >::Node::prev.

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