public static int SumFastEnumerable(ListLike <int> list)
{
var sum = 0;
var e = list.GetFastEnumerator();
var x = e.TryMoveNext(out var success);
while (success)
{
sum += x;
x = e.TryMoveNext(out success);
}
return(sum);
}
[Benchmark] public int SumFastEnumeratorInterface() => Sum.SumFastEnumeratorInterface(_data.GetFastEnumerator());
[Fact] public void SumFastEnumeratorInterface() => Assert.Equal(_expected, Sum.SumFastEnumeratorInterface(_data.GetFastEnumerator()));