/// <summary>
/// Retrieves the dictionary information in a format that can be persisted for
/// later use in creating a new dictionary.
/// </summary>
public static byte[] GetHeaderByteArray(CharacterFrequencyDictionary dict)
{
var dictKeys = dict.GetKeysAsByteArray();
var dictValues = dict.GetValuesAsByteArray();
var keyLength = BitConverter.GetBytes(dictKeys.Length);
var dictLength = BitConverter.GetBytes(dictValues.Length);
var headerLength = dictKeys.Length + dictValues.Length + keyLength.Length + dictLength.Length;
var fileHeader = new byte[headerLength];
int len = 0;
keyLength.CopyTo(fileHeader, len);
len += keyLength.Length;
dictLength.CopyTo(fileHeader, len);
len += dictLength.Length;
dictKeys.CopyTo(fileHeader, len);
len += dictKeys.Length;
dictValues.CopyTo(fileHeader, len);
return(fileHeader);
}
