In the pass by reference, the address of data is pass to the called function. Using & operator we can determine the address of the data item.
We have designed this program for beginners for learning purpose. Copy below c program and execute it with c compiler to see the output of the program.
void cube( int *x);
int num = 10;
printf("the cube of the given number is %d", num);
void cube(int *x)
*x = (*x) * (*x) * (*x);
the cube of the given number is 1000