C Program to Illustrate Pass by Reference

#include < stdio.h>
 
void cube( int *x);
 
int main()
{
    int num = 10;
 
    cube(&num);
    printf("the cube of the given number is %d", num);
    return 0;
}
 
void  cube(int *x)
{
    *x = (*x) * (*x) * (*x);
}

Output

 Enter  file  name: pgm2.c
There are  43  lines  in  pgm2.c   in  a  file 

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