Defining an object without calling its constructor in C++

Question

In C++, I want to define an object as a member of a class like this:

Object myObject;

However doing this will try to call it\'s parameterle

Answer 1

If you have access to boost, there is a handy object that is provided called boost::optional<> - this avoids the need for dynamic allocation, e.g.

class foo
{
  foo()  // default std::string ctor is not called..
  {
    bar = boost::in_place("foo"); // using in place construction (avoid temporary)
  }
private:
  boost::optional bar;
};