Copy constructor with more than one parameter
- by Ravi Gupta
I am learning C++ and was reading copy constructor from the C++: The Complete Reference. The books says that
It is permissible for a copy constructor to have additional parameters as long
as they have default arguments defined for them. However, in all cases the first
parameter must be a reference to the object doing the initializing.
But I am confused that how we are going to pass those additional parameters? I am sure there should be some way which is not given in the book and which I am unable to figure out. Can anyone help me out?
EDIT:
Also is it possible to pass these extra parameters in all three cases i.e.
¦ When one object explicitly initializes another, such as in a declaration
¦ When a copy of an object is made to be passed to a function
¦ When a temporary object is generated (most commonly, as a return value)