/// <summary>
/// Checks two collections to see if they contain all the same items.
/// </summary>
/// <typeparam name="T">Any type</typeparam>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns>
/// True if the collections are the same length and contain the same items, in the same order.
/// </returns>
/// <example><code><![CDATA[
/// var a = new int[]{ 1, 2, 3, 4, 5 };
/// var b = new int[]{ 1, 2, 3, 4, 5 };
/// var c = new
/// int[]{ 1, 2, 3, 4, 6 };
/// var d = new int[]{ 1, 2, 3, 4, 5, 6 };
/// var e = new int[]{ 1, 2, 3, 4 };
/// a.Matches(b); // --> true
/// a.Matches(c); // --> false
/// a.Matches(d); // --> false
/// a.Matches(e); // --> false
/// ]]></code></example>
public static bool Matches <T>(this IEnumerable <T> a, IEnumerator b)
{
if (a is null && b is null)
{
return(true);
}
if ((a is null) != (b is null))
{
return(false);
}
return(a.Matches(b.AsEnumerable().Cast <T>()));
}
