I can compile normal,when I use vector:
TEST(function_obj,bindMemeber1){
    std::vector<Person> v {234,234,1241,1241,213,124,152,421};
    std::for_each(v.begin(),v.end(), std::bind(&Person::print,std::placeholders::_1) );
}
but when I use set,something wrong:
TEST(function_obj,bindMemeber1){
    std::set<Person,PersonCriterion> v{234,234,1241,1241,213,124,152,421};
    std::for_each(v.begin(),v.end(), std::bind(&Person::print,std::placeholders::_1) );
}
clion's tips The IDE tell me that something wrong.when I force IDE to compile, it also can't compile successfully .
Below is the code of Person;
class Person{
private:
        size_t no;
        std::string name;
public:
        Person():no(0){};
        Person(size_t n): no(n){};
        Person(const Person& p):no(p.no),name(p.name){};
        friend class PersonCriterion;
    size_t getNo() const;
    void print(){
        std::cout<<no<<' ';
    }
    const std::string &getName() const;
};
class PersonCriterion{
public:
    bool operator()(const Person& p1,const Person& p2){
        return p1.no<=p2.no;
    }
};
size_t Person::getNo() const {
    return no;
}
const std::string &Person::getName() const {
    return name;
}
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