//
//  reading_from_a_file.c
//  
//
//  Created by Bibhas Ghoshal on 11/08/20.
//

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int num;
    FILE *fptr;
    
    if ((fptr = fopen("./my_program.txt","r")) == NULL){
        printf("\nError! opening file\n");
        
        // Program exits if the file pointer returns NULL.
        exit(1);
    }
    
    fscanf(fptr,"%d", &num);
    
    printf("\nValue of n=%d\n", num);
    fclose(fptr);
    
    return 0;
}