Bloomberg LP Interview Question Software Engineer / Developers
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A pointer can be re-assigned any number of times while a reference variable cannot be re-assigned after initialisation
- frozenT October 12, 2012A pointer can point to null while a reference variable can never point to null
You cant obtain the address of a reference like you do with pointers.
As for C++ compilers,
A reference variable is implemented as a pointer . That is a reference variable occupies the same amount of memory as a pointer.
A a general rule :
Use reference variables as function parameters and return types to define attractive interfaces.
Use pointers to implement algorithms and interfaces.
Reference : Stack overflow