Initializer list usage

• Preferred constructor syntax by most professionals for member initialization.

• Initializer list must be used for:

  1. References
  2. Data members without default constructors *)
  3. Constant members
     
     

• Function calls OK, but be careful - object is not yet constructed. (Also could be a decent test of debugger quality!)

*) If you do not explicitly initialize a class member in the initializer list, the compiler automatically initializes it using member's default constructor. For objects without default constructor this could produce difficult to understand error messages.