public static IEnumerable <int> Transform(this IEnumerable <int> input, TransformationFunction tf)
{
foreach (var n in input)
{
yield return(tf(n));
}
}
public static IEnumerable <int> Transform(this IEnumerable <int> data, TransformationFunction func)
{
foreach (var val in data)
{
yield return(func(val));
}
}
