如何在C ++中为具有成员集<class *>的类定义比较函数

Question

我想实现一个TrieNode类，该类包含一组TrieNode指针，并且它的值是一个int。如何定义节点集的比较？

MySetTrieNode.h

class MySetTrieNode {
public:
    int character;
    std::set<MySetTrieNode *> *nodes;
public:
    bool operator<(MySetTrieNode other) const;
};

MySetTrieNode.cpp

MySetTrieNode::MySetTrieNode() {
    this->character = -1;
    nodes = new std::set<MySetTrieNode *>();
}

bool MySetTrieNode::operator<(const MySetTrieNode other) const {
    return this->character < other.character;
}