Fork and Wait in Unix IPC C program

#include
#include
//#include "ourhdr.h"
main()

{
int pid , status;
if((pid=fork()<0))
printf("fork error \n");
else if(pid==0)
exit(7);
if(wait(&status)!=pid)
printf("wait error  \n");
_exit(status);
if((pid=fork()<0))
printf("fork error \n");
else if(pid==0)
abort();
if(wait(&status)!=pid)
printf("wait error \n");
_exit(status);
if((pid=fork()<0))
printf("Fork error \n");
else if(pid==0)
status/=0;
if(wait(&status)!=pid)
printf(" Wait error \n");
_exit(status);
exit(0);
}