blob: de07d15ee813a6906b7ac3d8eb9a4b95402abfd1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
using System;
using System.Collections;
using System.Collections.Generic;
class C<T>
{
public IEnumerator GetEnumerator ()
{
return new T[0].GetEnumerator ();
}
public IEnumerable<T> Filter (Func<T, bool> predicate)
{
foreach (T item in this)
if (predicate (item))
yield return item;
}
}
class M
{
public static void Main ()
{
foreach (var v in new C<long>().Filter(null)) {
}
}
}
|
