C++ Programming Code Examples C++ > Pointers Code Examples Program for Area Of Circle Using Pointer In C++ Program for Area Of Circle Using Pointer In C++ /*##Simple Area Of Circle C++ Program, pointers Example C++ Programming*/ /*##Pass By Reference C++ Function Example Program In C++ Programming*/ // Header Files #include <iostream> #include<conio.h> using namespace std; // Declare Area of Circle Function Using Pointer void area_of_circle(float *value, float *result) { *result = 3.14 * (*value) * (*value); } int main() { float radius, area; cout << "Pointer Example C++ Program : Area Of Circle Using Pointer and Functions\n"; cout << "\nEnter the radius of Circle : "; cin>>radius; //area = 3.14 * radius * radius; area_of_circle(&radius, &area); cout << "\nArea of Circle : " << area; getch(); return 0; }
