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Added All extension for IEnumerable on .NET 2

pull/10/head
David Hall 2018-01-06 16:35:14 -07:00
parent 7e372c55db
commit 8d3decba67
1 changed files with 14 additions and 0 deletions
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14
Core/BkwdComp/Linq.NET2.cs
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@ -7,6 +7,20 @@ namespace System.Linq
/// <summary>Provides a set of static (Shared in Visual Basic) methods for querying objects that implement <see cref="IEnumerable{T}"/>.</summary>
public static class Enumerable
{
/// <summary>Determines whether all elements of a sequence satisfy a condition.</summary>
/// <typeparam name="TSource">The type of the elements of <paramref name="source"/>.</typeparam>
/// <param name="source">An <see cref="IEnumerable{T}"/> whose elements to apply the predicate to.</param>
/// <param name="predicate">A function to test each element for a condition.</param>
/// <returns><c>true</c> if all elements in the source sequence pass the test in the specified predicate; otherwise, <c>false</c>.</returns>
public static bool All<TSource>(this IEnumerable<TSource> source, Func<TSource, bool> predicate)
{
if (source == null) throw new ArgumentNullException(nameof(source));
if (predicate == null) throw new ArgumentNullException(nameof(predicate));
foreach (TSource element in source)
if (!predicate(element)) return false;
return true;
}
/// <summary>Determines whether any element of a sequence satisfies a condition.</summary>
/// <typeparam name="TSource">The type of the elements of <paramref name="source"/>.</typeparam>
/// <param name="source">An <see cref="IEnumerable{T}"/> whose elements to apply the predicate to.</param>