代码#include unordered_map #include set #include memory class ResID { public: using SP std::shared_ptrResID; ResID() default; ResID(const std::string id, const std::string type) : m_id(id) , m_type(type) { } public: ~ResID() default; bool isValid() const { return !m_id.empty() !m_type.empty(); }; bool isEqual(const ResID other) const { return m_id other.m_id m_type other.m_type; } std::string type() const { return m_type; } std::string id() const { return m_id; } void setType(const std::string type) { m_type type; } void setId(const std::string id) { m_id id; } // 自定义比较器 struct Compare { bool operator()(ResID::SP lhs, ResID::SP rhs) const { // 根据value成员变量进行比较 return std::tuple(lhs-type(), lhs-id()) std::tuple(lhs-type(), lhs-id()); } }; using Set std::setResID::SP, ResID::Compare; // 自定义比较器 struct Equal { bool operator()(ResID::SP lhs, ResID::SP rhs) const { return lhs-isEqual(*rhs); } }; // 自定义比较器 struct Hash { size_t operator()(ResID::SP lhs) const { return std::hashstd::string()(lhs-type()) ^ std::hashstd::string()(lhs-id()); } }; templateclass T using UMap std::unordered_mapResID::SP, T, ResID::Hash, ResID::Equal; private: std::string m_id; std::string m_type; };示例class Data{ public: int value; }; auto resID std::make_sharedResID(id, type); auto resID2 std::make_sharedResID(id2, type2); ResIDData::UMap uMap; uMap.emplace(resID, {}); uMap.emplace(resID2, {}); uMap.emplace(resID, {}); assert(uMap.size() 2);创作不易小小的支持一下吧
