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Possible Duplicate:
Why should the copy constructor accept its parameter by reference in C++?
Why is copy constructor not allowed pass by value?
I am reading the lecture notes for my class on C++. In the notes they say the copy constructor signature for a class is
MyClass(MyClass &other)
and
MyClass(MyClass other)
won’t work. Why is that?
Thank you!
Because
MyClass(MyClass other)is passing the parameter by value, which itself requires a copy to be created. This would lead to an infinite loop (terminated only when your stack overflows).