The Definitive C# Singleton

It’s looks like it’s not thread safe but the framework actually guarantees that it is.

// .NET Singleton
sealed class Singleton
    static Singleton() {} // required to make lazy
    private Singleton() {}
    public static readonly Singleton Instance = new Singleton();

There’s also an interesting discussion of double locks in the article. Check out Exploring the Singleton Design Pattern for details.

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