I've had success getting it to evaluate FizzBuzz, but to do so I told it to write out the state of the program one timestep at a time.
https://chat.openai.com/share/c109e946-fb6d-494e-8182-fc93d2...
...this is actually 3.5. 4 wouldn't need as much explanation.
I wonder how gpt handles code where multiple objects of the same class call the same methods and each individual object calls the same methods with different threads as well as method local variables, class member variables, and static member variables are all in play. [Being fair to our LLM brethren; us meat sacks are sure to hate that hypothetical code as well.]
class X {
private static int _staticCount = 0;
private int _memberCount = 0;
public uint Stuff(int input) {
if (input <= 0) {
return (uint)(_staticCount + 1);
}
var y = new Thread(() => {
Interlocked.Add(ref X._staticCount, (int)Stuff(input - 1));
Interlocked.Add(ref _memberCount, (int)Stuff(input - 2));
});
y.Start();
y.Join();
return (uint)(Stuff(input - 1) + _memberCount);
}
}
class Program {
public static void Main() {
var x = new X();
var y = new X();
var z = new X();
uint resultX = x.Stuff(4);
uint resultY = y.Stuff(3);
uint resultZ = z.Stuff(2);
Console.WriteLine(resultX + resultY + resultZ);
}
}
I get 3274511360 when I run it. Although, I had to upgrade everything to uint because I was getting some overflow ... so there might be some of that in the output.
> Writing out an exact state of a multi-threaded program line-by-line is inherently challenging due to the inherent unpredictability of thread scheduling. However, I can provide an abstracted example of the flow of execution based on the order of operations in the code. Here is a simplified breakdown:
> x, y, z are instantiated as new X(), _staticCount is 0 for all, _memberCount is 0 for each individually.
> x.Stuff(4) is called.
> Inside Stuff(), check if input <= 0, it's not, hence, skip.
> Create new Thread with lambda function and start it.
> In the new thread, Stuff(input - 1) recursively calls Stuff(3).
> This recursion continues until Stuff(0) is called, returning _staticCount + 1 which is 1.
> This recursion unwinds, incrementing _staticCount and _memberCount at each level.
> After the thread finishes, call Stuff(input - 1) again and add it to _memberCount, effectively doubling the _memberCount.
> Return the final value for Stuff(4) for x.
> Repeat the above steps for y.Stuff(3) and z.Stuff(2).
> Write the sum of resultX, resultY, and resultZ to the console.
> Please note that due to the nature of multi-threaded execution, there is a risk of race conditions. The Interlocked.Add method is used to help prevent these race conditions by making the increment operations atomic. Also, keep in mind that the state of _staticCount after all calls to the Stuff method will be dependent on the interleavings of the threads, and hence, not deterministic.