If I return out of a try/finally block in C# does the code in the finally always run?

Question

It seems like it does as per some initial testing, but what I\'d like to know is if it is guaranteed to return or if in some cases it can not return? This i

Answer 1

Here are some examples:

Environment.FailFast()

        try
        {
            Console.WriteLine("Try");
            Environment.FailFast("Test Fail");

        }
        catch (Exception)
        {
            Console.WriteLine("catch");
        }
        finally
        {
            Console.WriteLine("finally");
        }

The output is only "Try"

Stackoverflow

        try
        {
            Console.WriteLine("Try");
            Rec();
        }
        catch (Exception)
        {
            Console.WriteLine("catch");
        }
        finally
        {
            Console.WriteLine("finally");
        }

Where Rec is:

    private static void Rec()
    {
        Rec();
    }

The output is only "Try" and the process terminates due to StackOverflow.

Unhanded exception

        try
        {
            Console.WriteLine("Try");
            throw new Exception();
        }
        finally
        {
            Console.WriteLine("finally");
        }