Sorting a vector of custom objects

Question

How does one go about sorting a vector containing custom (i.e. user defined) objects.
Probably, standard STL algorithm sort along with a predicate (a fu

Answer 1

In your class, you may overload the "<" operator.

class MyClass
{
  bool operator <(const MyClass& rhs)
  {
    return this->key < rhs.key;
  }
}