/// <summary> Gets or sets a key-value pair in this dictionary. </summary>
/// <param name="key"> The key of the value to get, or the key to associated the set value with. When setting, adds if the key is not present. </param>
public TValue this[TKey key]
{
get { return(values[indices[key]]); }
set
{
int index;
if (indices.TryGetValue(key, out index))
{
indices[key] = values.Change(index, value);
}
else
{
Add(key, value); //like the standard dictionary, the value is added if the key is not present
}
}
}
