predecessor()

template<typename T, typename Compare = less<T>, typename Allocator = allocator_slab<char>>

const Node * fl::RedBlackTree< T, Compare, Allocator >::const_iterator::predecessor ( const Node * x ) const

inlineprivate

Definition at line 431 of file rbtree.h.

                                                     {
            if (x == nullptr) return nullptr;
            if (x->left != nullptr) {
                return mTree->maximum(x->left);
            }
            const Node* y = x->parent;
            while (y != nullptr && x == y->left) {
                x = y;
                y = y->parent;
            }
            return y;
        }

References mTree, x, and y.

Referenced by operator--().

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