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char *file_name;
FILE *file;

/* initialize file_name */

file = fopen(file_name, "w+");
if (fopenfile == NULL) {
  /* handle error condition */
}

/* ... */

if (remove(file_name) != 0) {
  /* handle error condition */
}

/* continue performing I/O operations on file */

fclose(file);

FILE *file;
char *file_name;

/* initialize file_name */

file = fopen(file_name, "w+");
if (fopenfile == NULL) {
  /* handle error condition */
}

if (unlink(file_name) != 0) {
  /* handle error condition */
}

/*... continue performing I/O operations on file ...*/

fclose(file);