Is there already a comparison-interface in the framework

which is equivalent to

interface ISomeKindOfCompare<T>
{
    bool Matches(T item);
}

I know IComparer and IEqualityComparer and so on, but that's 开发者_StackOverflownot what I am looking for.

IEquatable<T> looks the same as your ISomeKindOfCompare<T>. That is, it lets you ask "is this object equal to some T?".

IComparable? IEquatable<T>?