Which C++ type trait checks whether a specified type is void?

Options

  • A. std::is_void
  • B. std::is_null_pointer
  • C. std::is_empty
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. std::is_void

Detailed Explanation

Answer: (A) std::is_void

std::is_void checks whether a specified type is void.

For example, std::is_void<void>::value returns true.

For a type such as int, the result is false.

The void type represents the absence of a value and is commonly seen as the return type of functions that do not return a value.