コード例 #1
0
        public static bool TryAdd <T>(
            this ImmutableSegmentedDictionary <T, VoidResult> .Builder dictionary,
            T value)
            where T : notnull
        {
#if NETCOREAPP
            return(dictionary.TryAdd(value, default));
#else
            if (dictionary.ContainsKey(value))
            {
                return(false);
            }

            dictionary[value] = default;
            return(true);
#endif
        }
 public bool Contains(TKey item)
 => _dictionary.ContainsKey(item);