| public assocEx ( object key, object val ) : IPersistentMap | ||
| key | object | The key |
| val | object | The value |
| Результат | IPersistentMap | |
public override IPersistentMap assocEx(object key, object val)
{
Box found = new Box(null);
Node t = Add(_tree, key, val, found);
if (t == null)
throw new Exception("Key already present");
return new PersistentTreeMap(_comp, t.Blacken(), _count + 1, meta());
}