예제 #1
0
            internal override bool AddIfNotPresent(T item)
            {
                if (!IsWithinRange(item))
                {
                    throw new ArgumentOutOfRangeException(nameof(item));
                }

                bool ret = _underlying.AddIfNotPresent(item);

                VersionCheck();
#if DEBUG
                Debug.Assert(this.versionUpToDate() && root == _underlying.FindRange(_min, _max));
#endif

                return(ret);
            }