/// <summary>
/// Initializes a new instance of the <see cref="Bag<T>" /> class.
/// </summary>
/// <param name="dictionary"> The dictionary to copy values from. </param>
Bag(IDictionary <T, int> dictionary)
{
#region Asserts
Debug.Assert(dictionary != null);
#endregion
_data = new VisitableHashtable <T, int>(dictionary);
// Update the count
using (var enumerator = _data.GetEnumerator())
while (enumerator.MoveNext())
{
Count += enumerator.Current.Value;
}
}
/// <summary>
/// Copies the elements of the <see cref="T:System.Collections.Generic.ICollection`1"></see> to an <see
/// cref="T:System.Array"></see>, starting at a particular <see cref="T:System.Array"></see> index.
/// </summary>
/// <param name="array"> The one-dimensional <see cref="T:System.Array"></see> that is the destination of the elements copied from <see
/// cref="T:System.Collections.Generic.ICollection`1"></see> . The <see cref="T:System.Array"></see> must have zero-based indexing. </param>
/// <param name="arrayIndex"> The zero-based index in array at which copying begins. </param>
/// <exception cref="T:System.ArgumentOutOfRangeException">arrayIndex is less than 0.</exception>
/// <exception cref="T:System.ArgumentNullException">array is null.</exception>
/// <exception cref="T:System.ArgumentException">array is multidimensional.-or-arrayIndex is equal to or greater than the length of array.-or-The number of elements in the source
/// <see cref="T:System.Collections.Generic.ICollection`1"></see>
/// is greater than the available space from arrayIndex to the end of the destination array.-or-Type T cannot be cast automatically to the type of the destination array.</exception>
public void CopyTo(T[] array, int arrayIndex)
{
if (array == null)
{
throw new ArgumentNullException("array");
}
if ((array.Length - arrayIndex) < Count)
{
throw new ArgumentException(Resources.NotEnoughSpaceInTargetArray);
}
var enumerator = _data.GetEnumerator();
var counter = arrayIndex;
while (enumerator.MoveNext())
{
var itemCount = enumerator.Current.Value;
var obj = enumerator.Current.Key;
for (var i = 0; i < itemCount; i++)
{
array.SetValue(obj, counter++);
}
}
enumerator.Dispose();
}
