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QWhat is the difference between a pointer and a reference in C++?

ID: #7196 Pointer in C Language 175 views
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Pointer in C LanguageTopic
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  • A A reference is a type of pointer ✔ ✖
  • B A pointer can be reassigned to point to a different memory location, while a reference cannot ✔ ✖
  • C A reference must be initialized when it is declared, while a pointer does not have to be ✔ ✖
  • D A pointer is a copy of the value it points to, while a reference is an alias for the value it refers to ✔ ✖
Correct Answer: Option B

Explanation

Answer: B

Explanation: In C++, a pointer can be reassigned to point to a different memory location, while a reference always refers to the same object throughout its lifetime. Additionally, a reference must be initialized when it is declared, while a pointer can be declared without initialization.

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