The following code example is taken from the book
C++ Move Semantics - The Complete Guide by Nicolai M. Josuttis, Leanpub, 2020
The code is licensed under a Creative Commons Attribution 4.0 International License. Creative Commons License

// raw code

#include "customerimpl.hpp"
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

int main()
  std::vector<Customer> coll;
  for (int i=0; i<12; ++i) {
    coll.push_back(Customer{"TestCustomer " + std::to_string(i-5)});

  std::cout << "---- sort():\n";
  std::sort(coll.begin(), coll.end(),
            [] (const Customer& c1, const Customer& c2) {
              return c1.getName() < c2.getName();