Declare an array of three function pointers where each function receives two integers and returns float. | C Programming

Declaration:

float (*fn[3])(int, int);

Program: Illustrates the usage of above declaration

#include<stdio.h>
float (*fn[3])(int, int);
float add(int, int);
int main()

 {
int x, y, z, j;
for (j = 0; j < 3; j++)

{
fn[j] = &add;
}
x = fn[0](10, 20);
y = fn[1](100, 200);
z = fn[2](1000, 2000);
printf("sum1 is: %d \n", x);
printf("sum2 is: %d \n", y);
printf("sum3 is: %d \n", z);
return 0;
}

float add(int x, int y)

{
float f = x + y;
return f;
}
Output:
sum1 is: 30
sum2 is: 300
sum3 is: 3000
Explanation:
Here 'fn[3]' is an array of function pointers. Each element of the array can store the address of function 'float add(int, int)'.
fn[0]=fn[1]=fn[2]=&add
Wherever this address is encountered add(int, int) function is called.