The function pointer will point to which of the following?
(A) function
(B) constants
(C) variable
(D) absolute variables
Example of the Program in C++
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#include <iostream> using namespace std; int Sum(int num1 , int num2) { return num1+num2; } int main() { int (*Function_Pointer)(int,int); // function pointer declaration Function_Pointer=Sum; // Function_Pointer is pointing to the Sum function int sum=Function_Pointer(3,4); std::cout << "value of sum is:" <<sum<< std::endl; return 0; } |
Output
value of sum is:7
Example of the Program in C
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#include<stdio.h> // function declaration int Rectangle(int, int); int main() { int length, breadth, area; int (*Area_function_pointer)(int, int); printf("Enter the length and breadth of a rectangle\n"); scanf("%d%d", &length, &breadth); // pointing the pointer to functions memory address Area_function_pointer = Rectangle; // calling the function using function pointer area = (*Area_function_pointer)(length, breadth); printf("Area of rectangle = %d", area); return 0; } // function definition int Rectangle(int x, int y) { int area_of_rectangle = x * y; return area_of_rectangle; } |
Output
Enter the length and breadth of a rectangle
6
7
Area of rectangle = 42
Highly Recommended C++ Important MCQs with Explanation
- Which symbol is used to create multiple inheritances?
- If a derived class object is created, which constructor is called first?
- Which of the following is not a type of constructor?
- a ____ is a member function that is automatically called when a class object is __.
- What is the output of the following code in C++?
- How many times will the following code print?
- Which of the following is a procedural language?
- Which of the following is not a programming language?
- Which of the following is not an example of high-level language?
- While declaring pointer variables which operator do we use?
- To which does the function pointer point to?