Finding the maximum element for user-defined types - C++ STL Algorithm

C++ examples for STL Algorithm:max_element

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Description

Finding the maximum element for user-defined types

Demo Code

#include <algorithm>
#include <vector>
#include <iostream>

using namespace std;
struct Person {//from   w w  w.ja v  a 2  s.c  o  m
  Person(const char* name, int rating): name_(name), rating_(rating)
  {}
  const char* name_;
  int rating_;
};

struct IsWeakerPlayer {
  bool operator()(const Person& x, const Person& y) {
    return x.rating_ < y.rating_;
  }
};

int main()
{
  Person p1("G", 5);
  Person p2("V", 7);
  Person p3("A", 8);
  
  vector<Person> v;
  
  v.push_back(p1);
  v.push_back(p2);
  v.push_back(p3);
  
  cout << "the best player is " << max_element(v.begin(), v.end(), IsWeakerPlayer())->name_;
  
  cout << endl;
}

Result


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