ftell example in C

Header file:

    stdio.h

Synopsis:

     long ftell(FILE *stream);

Description:

     Returns the current position of the file pointer on success.  Otherwise, -1 is returned.

ftell function C example:

  #include<stdio.h>
  int main() {
        int pos;
        FILE *fp;
        fp = fopen("input.txt", "rb");
        fseek(fp, 5, SEEK_SET);
        pos = ftell(fp);
        printf("Position of cursor: %d\n", pos);
        fclose(fp);
        return 0;
  }

  Output:

  jp@jp-VirtualBox:~/cpgms/exp$ cat input.txt
  hello world
  hello world
  hello world

  jp@jp-VirtualBox:~/cpgms/exp$ ./a.out
  Position of cursor: 5