C++: why can't we have references to references or array of references?
c++, reference
Solution
Pointers are mutable (if non-const), references never. Thus there is no point having a pointer or reference to a reference.
Also, a reference must always refer to something - there is no such thing as a null reference. This is why there can be no arrays of references, as there is no way to default instantiate references inside an array to a meaningful value.
Problem
I noticed that there is no reference to reference but there is pointer to pointer, and also there is no an array of references but an array of pointers. Could anybody give me any reason?