[英]Is there a C# equivalent to the STL output iterator?
I'm looking for some type of iterator/enumerator that can write to the backing collection. 我正在寻找可以写入支持集合的某种类型的迭代器/枚举器。 As I understand it c# enumerators are read-only.
据我了解,c#枚举器是只读的。
There's nothing already existing in C# to do such a thing. C#中没有任何东西可以用来做这样的事情。
You're right IEnumerator's Current property is defined as a getter only. 你是对的IEnumerator的Current属性只定义为getter。
You'd need to write a new class and/or interface to support such a thing. 你需要编写一个新的类和/或接口来支持这样的事情。
interface IOutputable<T> {
IOutputer<T> GetOutputer();
}
interface IOutputer<T> {
T Current { set; }
bool MoveNext();
void Reset();
}
AFAIK an output iterator is a way to create a sequence of objects. AFAIK输出迭代器是一种创建对象序列的方法。 There's a myriad of ways to do that in C#.
在C#中有很多方法可以做到这一点。 For example, using a
Stack
. 例如,使用
Stack
。 Instead of doing a C++ style increment/assign operation you'd do a push: 而不是做C ++样式增量/分配操作,你做推动:
var sequence = new Stack<int>();
sequence.Push( 1 );
sequence.Push( 2 );
Unless you have a very specific application for it, there's probably no benefit in trying to emulate output iterators in C#. 除非你有一个非常具体的应用程序,否则尝试在C#中模拟输出迭代器可能没什么好处。
根据您要做的事情, yield return
可能会做您正在寻找的。
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