Tf the exit function can only be called from main .

FALSE

Explanation:

The exit function is used to terminate or halt the process.

Syntax-

            void exit(int status)  

Exit function (exit()) can be used in any function not only main() and it will terminate your whole process.

Example- C Program

#include<stdio.h>

#include <stdlib.h>  

//  function declaration

float exitexample ( float x );                                

// Driver program

int main( )                

{

 float a, b ;

 printf ( "\nEnter some number for finding square \n");

  scanf ( "%f", &a ) ;

 // function call

 b = exitexample ( a ) ;                      

 printf ( "\nSquare of the given number %f is %f",a,b );  

/*This will not printed as exit function is in exitexample() function*/

}

float exitexample ( float x )   // function definition  

{

 exit(0);    //exit function

   float p ;

  p = x * x ;

return ( p ) ;

}