FILE

[m4k4v3l1]

#include <stdio.h>
int main()

{
  FILE * abc;
  abc = fopen ("dokas.txt","a");
  if (abc!=NULL)
  {
    fclose (abc);
  }
 return 0;
}

This should open a txt file that contain numbers , but I need that when it's opened , 0 should be deleted and new file without 0 saved with other name , but I don't know how to do it.

[anilpanicker]

refer here
http://www.cplusplus.com/reference/clibrary/cstdio/fopen.html