Which of the following can store the address of a function in C++?
int add(int a, int b)
{
return a + b;
}
int (*ptr)(int, int) = add;
Options
-
A.
Function pointer
-
B.
Integer variable only
-
C.
Array only
-
D.
More than one of the above
-
E.
None of the above
Correct Answer (Detailed Explanation is Below)
A.
Function pointer
Detailed Explanation
Answer: (A) Function pointer
A function pointer is a pointer that can store the address of a function.
In the example, ptr can store the address of the add() function.
The function pointer can subsequently be used to call the function.
Function pointers are useful when a program needs to pass a function as an argument or select a function dynamically.
