C# Async recursive function not working properly? [duplicate]

Question

This is my code :

  class Program
{
    static void Main(string[] args)
    {
        update();
    }

    static async void update()
    {
        await Task.Delay(100);
        Console.WriteLine("X");
        update();
    }
}

Console never outputs any text at all, and I have no clue why. What am I doing wrong?

Does this answer your question? async/await - when to return a Task vs void? — IndieGameDev
– IndieGameDev, Commented Dec 15, 2020 at 10:12

crgolden · Accepted Answer · 2020-12-15 10:26:09Z

1

Your Main method is not async, so it doesn't wait for your update method. Also, your update method should return a Task so your Main method can await it.

static async Task Main(string[] args)
{
    await update();
}

static async Task update()
{
    await Task.Delay(100);
    Console.WriteLine("X");
    await update();
}

edited Dec 15, 2020 at 10:26

answered Dec 15, 2020 at 10:14

crgolden

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2 Comments

crgolden Over a year ago

@Selvin Thanks I'll update the answer

peni4142 Over a year ago

Would that not cause an stack overflow?

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