Create Child Using Fork in C program | Operating System

Create a process. Fork to create a child process. Display pid, ppid, gid and uid in
the child process and display pid, gid and uid for the parent process

Solution:
This is small program to create process using fork() method as after call fork() it will return -1 if child creation fail,return 0 if child creation successful ,return child pid to  parent.

#include<stdio.h>
#include<sys/types.h>
#include<unistd.h>

#include<stdlib.h> 

void  main()
{
        pid_t pid;
        pid=fork();
        switch(pid)
        {

           case -1:printf("Child Creation Fail..!!");

                   exit(1); 

           case 0: 

                printf("I AM THE CHILD PROCESS\n");
                printf("The Child process id is %d  ppid is %d gid is %d uid id %d \n",getpid(),getppid(),getgid(),getuid());
               
       
           default:   printf("I AM THE PARENT PROCESS\n");
                printf("The Parent process id is %d gid %d uid %d \n",getpid(),getgid(),getuid());
        }
exit(0);
}