StructuralComparisons.cs

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namespace System.Collections;
 
public static class StructuralComparisons
{
    private static volatile IComparer s_StructuralComparer;
 
    private static volatile IEqualityComparer s_StructuralEqualityComparer;
 
    public static IComparer StructuralComparer
    {
        get
        {
            IComparer comparer = s_StructuralComparer;
            if (comparer == null)
            {
                comparer = (s_StructuralComparer = new StructuralComparer());
            }
            return comparer;
        }
    }
 
    public static IEqualityComparer StructuralEqualityComparer
    {
        get
        {
            IEqualityComparer equalityComparer = s_StructuralEqualityComparer;
            if (equalityComparer == null)
            {
                equalityComparer = (s_StructuralEqualityComparer = new StructuralEqualityComparer());
            }
            return equalityComparer;
        }
    }
}