How to sort the alphabet list

[esther]

How do I sort out three alphabet files? How to perform alphabet alphabet class using the student's name before I record it. That's the file that's supposed to be inscribed on the list already classified. http://ideone.com/Xtg4g5 ♪

Baseline:

• student[i].Family - Name of student
• student[i].Name - Name of student.
• student[i].Sex - Paul.
• student[i].Date[0] - number
• student[i].Date[1] - month.
• student[i].Date[2] - Birth year

• student[i].City - The city of birth.

      case 2:
  char f4[20];
  FILE *z1;
  
  cout << "\nВведите имя файла для чтения: ";
  
  //fscanf(v, "%d", &m); 
  cin >> f4;
  
  z1 = fopen(f4, "r");
  for (int i = 0; i < N; i++)
      fscanf(z1, "%s%s%s%d%d%d%s", &student[i].Family, &student[i].Name, &student[i].Sex, &student[i].Date[0], &student[i].Date[1], &student[i].Date[2], &student[i].City);
  cout << "\nЧтение из файла " << f4 << ":\n";
  for (int i = 0; i < N; i++)
      cout << student[i].Family << " " << student[i].Name << " " << student[i].Sex << " " << student[i].Date[0] << "." << student[i].Date[1] << "." << student[i].Date[2] << " " << student[i].City << "\n";
  
  
  
  
  
  
  cout << "File name? ";
  char girls[50];
  cin.getline(girls, 50);
  f = fopen("girls.txt", "a+");
  for (int i = 0; i < N; i++)
      if (strcmp(student[i].Sex, "Female") == 0)
      {
          student[i].Show();
      }
  
  //сортировка по алфавиту это то что я сам сейчас попробовал но это не работает походу
  while (a == 1)
  {
      a = 0;
      for (int i = 0; i<N - 1; i++){
          if (strcmp(student[i].Family, student[i + 1].Family)>0)
          {
  
              strcpy(tmp, student[i].Family);
              strcpy(student[i].Family, student[i + 1].Family);
              strcpy(student[i + 1].Family, tmp);
              /*strcpy(tmp, fr[i].dolgnost);
              strcpy(fr[i].dolgnost, fr[i + 1].dolgnost);
              strcpy(fr[i + 1].dolgnost, tmp);
              tmp1 = fr[i].stag;
              fr[i].stag = fr[i + 1].stag;
              fr[i + 1].stag = tmp1;*/
              a = 1;
          }
      }
  }// вот до этого момента новое.
  fclose(f); //С помощью цикла показываем всех девочек.
  system("pause");
  break;
  
  

[jules]

Comments already mentioned that a collection and a sort function could be used. Create a collection. Fill the list of values.

 list<Student> lines;

Redesign the operator more (or less) for your structure.

bool Student::operator < (const Student& rhs) const
{
    return ...
}

Then use the function sort().

lines.sort();

---

You can also compare the letter codes. http://book.itep.ru/10/ascii.htm ♪

This is an example of a simple software using symbol codes:

char Name1 [5]={'B','C','D','Z','Y'};
char Name2 [5]={'A','c','E','T','k'};
for(int i =0 ; i<5;i++){
    cout<<Name1[i]-Name2[i]<<" ";
}

Out:

1 -32 -1 6 -18 

In your case, it is necessary to use a normal method of sorting so that at the beginning of the list there is a name with the smallest code of the first symbol.