public static int Count <T>(this System.Collections.Generic.IEnumerable <T> e, System.Predicate <T> m = null)
{
if (e.IsNull())
{
throw new System.NullReferenceException();
}
var result = 0;
var list = new System.Collections.Generic.List <T>(e);
if (m.IsNull())
{
result = list.Count;
}
else
{
for (var i = 0; i < list.Count; i++)
{
if (m.Invoke(list[i]))
{
result++;
}
}
}
list.Clear();
return(result);
}
public int FindIndex(System.Predicate <T> match)
{
if (match.IsNull())
{
throw new System.NullReferenceException();
}
return(System.Array.FindIndex(array, match));
}
public WrappedArray <T> FindAll(System.Predicate <T> match)
{
if (match.IsNull())
{
throw new System.NullReferenceException();
}
return(new WrappedArray <T>(System.Array.FindAll(array, match)));
}
public static int FindIndex <T>(this T[] a, System.Predicate <T> m)
{
if (a.IsNull())
{
throw new System.NullReferenceException();
}
if (m.IsNull())
{
throw new System.NullReferenceException();
}
return(System.Array.FindIndex(a, m));
}
public static bool Exists <T>(this T[] a, System.Predicate <T> m) where T : class
{
if (a.IsNull())
{
throw new System.NullReferenceException();
}
if (m.IsNull())
{
throw new System.NullReferenceException();
}
return(!System.Array.Find(a, m).IsNull());
}
public static bool Any <T>(this T[] a, System.Predicate <T> m)
{
if (!a.IsNull() && !m.IsNull())
{
for (var i = 0; i < a.Length; i++)
{
if (m.Invoke(a[i]))
{
return(true);
}
}
}
return(false);
}
public bool Exists(System.Predicate <T> match)
{
if (match.IsNull())
{
throw new System.NullReferenceException();
}
for (var i = 0; i < array.Length; i++)
{
if (match.Invoke(array[i]))
{
return(true);
}
}
return(false);
}
public static void DoFor <T>(this T[] a, System.Predicate <T> m, System.Action <T> action, bool forwardOrder = true)
{
if (!a.IsNull() && !action.IsNull() && !m.IsNull())
{
var start = forwardOrder ? 0 : (a.Length - 1);
var offset = forwardOrder ? 1 : -1;
for (var i = start; (i >= 0) && (i < a.Length); i += offset)
{
if (m.Invoke(a[i]))
{
action.Invoke(a[i]);
}
}
}
}
public int RemoveAll(System.Predicate <T> match)
{
if (match.IsNull())
{
throw new System.NullReferenceException();
}
var result = 0;
for (var i = 0; i < array.Length; i++)
{
if (match.Invoke(array[i]))
{
RemoveAt(i);
result++;
i--;
}
}
return(result);
}
public static void RemoveAll <T>(ref T[] a, System.Predicate <T> m)
{
if (a.IsNull())
{
throw new System.NullReferenceException();
}
if (m.IsNull())
{
throw new System.NullReferenceException();
}
for (var i = 0; i < a.Length; i++)
{
if (m.Invoke(a[i]))
{
RemoveAt(ref a, i);
i--;
}
}
}
public static TOutput[] FindAndConvert <TInput, TOutput>(this System.Collections.Generic.IEnumerable <TInput> e, System.Predicate <TInput> m, System.Converter <TInput, TOutput> c)
{
if (e.IsNull())
{
throw new System.NullReferenceException();
}
if (m.IsNull())
{
throw new System.NullReferenceException();
}
var list = new System.Collections.Generic.List <TInput>(e);
var finded = list.FindAll(m);
var converted = finded.ConvertAll(c);
var result = converted.ToArray();
list.Clear();
finded.Clear();
converted.Clear();
return(result);
}
