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C++ | References | Question 6

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Which of the following is FALSE about references in C++
(A) References cannot be NULL
(B) A reference must be initialized when declared
(C) Once a reference is created, it cannot be later made to reference another object; it cannot be reset.
(D) References cannot refer to constant value

Answer: (D)

Explanation: We can create a constant reference that refers to a constant. For example, the following program compiles and runs fine.

using namespace std;

int main()
  const int x = 10;
  const int& ref = x;

  cout << ref;
  return 0;

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Last Updated : 28 Jun, 2021
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