/// <summary>
/// Removes the first occurrence of a specific object from the <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </summary>
/// <param name="item">The object to remove from the <see cref="T:System.Collections.Generic.ICollection`1"/>.</param>
/// <returns>
/// true if <paramref name="item"/> was successfully removed from the <see cref="T:System.Collections.Generic.ICollection`1"/>; otherwise, false. This method also returns false if <paramref name="item"/> is not found in the original <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </returns>
/// <exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.ICollection`1"/> is read-only.</exception>
public bool Remove(T item)
{
var result = ImmutableHashSet <T> .Remove(item, this.Origin);
this.Apply(result);
return(result.Count != 0);
}
/// <summary>
/// Performs an atomic pop from an Immutable Hash Set
/// </summary>
/// <param name="hashSet">The location of the hash set to remove from</param>
/// <param name="item">The item to remove</param>
/// <returns>True if an item was removed, or False if the item was not found</returns>
public static bool Remove <T>(ref ImmutableHashSet <T> hashSet, T item)
{ //****************************************
ImmutableHashSet <T> OldSet, NewSet;
//****************************************
do
{
OldSet = hashSet;
NewSet = OldSet.Remove(item);
if (object.ReferenceEquals(OldSet, NewSet))
{
return(false);
}
} while (Interlocked.CompareExchange(ref hashSet, NewSet, OldSet) != OldSet);
return(true);
}