C++ ctors

class MyObject
{
  public:
    MyObject(int someInt)
    {
      this->someInt = someInt; // someInt will be allocated and then set to a value separately (inefficient)
    }
  private:
    int someInt;
};

ALTERNATIVE

class MyObject
{
  public:
    MyObject(int anInt) : someInt(anInt) {} // Some int initialised and allocated at the same time
  private:
    int someInt;
};