What does std::extent<int[5]>::value return in C++?
Options
- B. 1
- C. 5
- D. More than one of the above
- E. None of the above
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Quiz Practice:
Correct Answer (Detailed Explanation is Below)
C. 5
Detailed Explanation
Answer: (C) 5
std::extent returns the number of elements in a particular dimension of an array.
For a one-dimensional type int[5], the first dimension contains 5 elements. Therefore, std::extent<int[5]>::value returns 5.
This is different from std::rank<int[5]>::value, which would return 1 because the array has only one dimension.