using System.Collections.Generic; using MemoryPools.Collections.Specialized; namespace MemoryPools.Collections.Linq { public static partial class PoolingEnumerable { public static IPoolingEnumerable<T> Union<T>(this IPoolingEnumerable<T> source, IPoolingEnumerable<T> second) { var set = Pool<PoolingDictionary<T, int>>.Get().Init(0); foreach (var item in source) set[item] = 1; foreach (var item in second) set[item] = 1; return Pool<UnionExprEnumerable<T>>.Get().Init(set); } public static IPoolingEnumerable<T> Union<T>(this IPoolingEnumerable<T> source, IPoolingEnumerable<T> second, IEqualityComparer<T> comparer) { var set = Pool<PoolingDictionary<T, int>>.Get().Init(0, comparer); foreach (var item in source) set[item] = 1; foreach (var item in second) set[item] = 1; return Pool<UnionExprEnumerable<T>>.Get().Init(set); } } }