Constructor

[littlestar]

I am trying to understand what does this line of code means.
I know is a constructor but i dont understand what does the second ':' refers to?
Any help is greatly appreciate.

 TestTargetAccess::TestTargetAccess()
   : ITargetAccess("TestTarget") 

When I compile, i am getting this error
error: ‘TestTargetAccess’ does not name a type;

Thank you so much for your help.

[Duthomhas]

That isn’t a whole lot of context, but if you are using Embarcadero’s component library, then you cannot instantiate an interface.

The compile error looks like you have not #included the class definition in your .cpp file.

The single colon is what begins the constructor’s initializer list. https://en.cppreference.com/w/cpp/language/initializer_list

It is just another way of initializing variables in your object.

struct Quux
{
  int a, b;
  double c;

  Quux() :
    a(7),  // a = 7
    b(),   // default initialize b (int = 0)
    c(3.141592) // c = PI
  { }

  ...

Hope this helps.