Character problem

I’m trying to code a program that displays the alphabet in alphabetical order. The file has the letters in random order and then I coded to where its in alphabetical order. The problem is when I compile, the letters don’t show up .I know I have to change the int to char and I did but I still don’t get the character letters to show up.

Code:

---

void load_array (char input_filename[], int things[], int array_size);
void display_array(int things[], int array_size);
void bubble_sort_array(int things[], int array_size);
void pause(void);

// Variables
char    data_name[]  = "C:\\Codes_Files\\Alphabet.txt";

//******************************************************
// main
//******************************************************

int main(void)
  {
  int record_count = count_file_values(data_filename);
  int letters[record_count];
  load_array_from_file(data_filename, letters, record_count);
  cout << "randomized letters of the alphabet: \n";
  display_array(letters, record_count);
  bubble_sort_array(letters, record_count);
  cout << "\n\nThe sorted alphabet: \n";
  display_array(letters, record_count);
  pause();

  return 0;
  }

// load_array

void load_array_from_file(char input_filename[], int things[], int array_size)
  {
  fstream  inData;         

  inData.open(input_filename, ios::in);       
  if (!inData)
    {
    cout << "\n\nError opening file: " << input_filename << "\n\n";
    pause();
    exit(EXIT_FAILURE);
    }
  else
    {
    for (int i = 0; i < array_size; i++) 
      {
      inData >> things[i];
      }
    inData.close();
    }
  return;
  }


// display_array

void display_array(int things[], int array_size)
  {
  for (char i = 0; i < array_size; i++)
    {
    cout << things [i] << " " ;
    }
 

  return;
  }


// bubble_sort_array

void bubble_sort_array(int things[], int array_size)
  {
  bool moresortneeded; 
  int  temp;           
  do
    {
    moresortneeded = false;
    for(int i = 0; i < array_size - 1; i++)
      {
      if(things[i] > things[i+1])
        {
        temp = things[i];
        things[i] = things[i+1];
        things[i+1] = temp;
        moresortneeded = true;
        }
      }
    }
  while(moresortneeded);

  return;
  }

---

Code:

---

  int record_count = count_file_values(data_filename);
  int letters[record_count];

---

For one thing I don't see the definition of count_file_values (it may be returning 0 for all we know or some other bad value).

Secondly, that code is not valid C++. The size of arrays needs to be known at compile time. GCC only allows this as an extension (since it is valid in C90) - use the -pedantic flag to turn off compiler extensions.

Instead why not use a std::string to hold the contents of the file? Then you won't need to count the number of characters first and have something that actually stores characters, not numbers.

Actually I have it defined, I just didnt paste it xD

int count_file_values(char input_filename[]);
void load_array_from_file(char input_filename[], int things[], int array_size);
void display_array(int things[], int array_size);
void bubble_sort_array(int things[], int array_size);
void pause(void);

I'm using two files. One deals with numbers, and one with the characters. Basically instead of trying to use two seperate files (one for numbers, one for characters) I just thought it was easier just to change parts of one to use for the other. The code I pasted now is for the number file I have. I'm trying to change parts of the interger data type to fit the character type by I'm not sure where.