Delete a record that contains information by reinitializing that particular record.

Question

What will be an ideal response?

Answer 1

```
do { // obtain id-number value
cout << "Enter id number for new record (1 - 100): "
cin << id;
} while ((id < 1) || (id > 100));
// move file-position pointer to correct record in file
fileObject.seekg((id - 1) * sizeof(Person));
// read record from file
Person person;
fileObject.read(reinterpret_cast(&person), sizeof(Person));
if (person.id != 0) { // delete record, if record exists in file
// create blank record
Person blankPerson;
blankPerson.setLastName("unassigned");
blankPerson.setFirstName("");
blankPerson.setAge("0");
blankPerson.id = 0;
// move file-position pointer to correct record in file
fileObject.seekp((id - 1) * sizeof(Person));
// replace existing record with blank record
fileObject.write(reinterpret_cast(&blankPerson),
sizeof(Person));
cout << "Record #" << id << " deleted." << endl;
}
else { // display error if record does not exist
cerr << "Record #" << id << " is empty." << endl;
}
```