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Imported Upstream version 4.0.0~alpha1

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Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9
This commit is contained in:
Jo Shields
2015-04-07 09:35:12 +01:00
parent 283343f570
commit 3c1f479b9d
22469 changed files with 2931443 additions and 869343 deletions
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12
mcs/class/System.Core/System.Linq/Enumerable.cs
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@@ -744,11 +744,9 @@ namespace System.Linq
if (list != null)
return list [index];
#if NET_4_5
var readOnlyList = source as IReadOnlyList<TSource>;
if (readOnlyList != null)
return readOnlyList[index];
#endif
return source.ElementAt (index, Fallback.Throw);
}
@@ -768,11 +766,9 @@ namespace System.Linq
if (list != null)
return index < list.Count ? list [index] : default (TSource);
#if NET_4_5
var readOnlyList = source as IReadOnlyList<TSource>;
if (readOnlyList != null)
return index < readOnlyList.Count ? readOnlyList [index] : default (TSource);
#endif
return source.ElementAt (index, Fallback.Default);
}
@@ -2765,14 +2761,14 @@ namespace System.Linq
{
Check.Source (source);
if (count <= 0)
return EmptyOf<TSource>.Instance;
return CreateTakeIterator (source, count);
}
static IEnumerable<TSource> CreateTakeIterator<TSource> (IEnumerable<TSource> source, int count)
{
if (count <= 0)
yield break;
int counter = 0;
foreach (TSource element in source) {
yield return element;
@@ -3073,7 +3069,6 @@ namespace System.Linq
#endregion
#if NET_4_0
#region Zip
public static IEnumerable<TResult> Zip<TFirst, TSecond, TResult> (this IEnumerable<TFirst> first, IEnumerable<TSecond> second, Func<TFirst, TSecond, TResult> resultSelector)
@@ -3098,7 +3093,6 @@ namespace System.Linq
}
#endregion
#endif
#region Where