C++14: Generic lambdas

C++14 added generic lambdas. Here is an example:

#include <iostream>
#include <string>

auto myLambda = [](auto x, auto y) {return x + y;};

int main()
{
  std::cout << myLambda(3, 4) << " ";
  std::cout << myLambda(std::string("Hello"), std:: string("World")) << " ";
  std::cout << myLambda(3.3, 4.4) << " ";

  std::cout << std::endl;
  return 0;
}
// Output: 7 HelloWorld 7.7

Reference: https://en.wikipedia.org/wiki/C%2B%2B14#Generic_lambdas