.net 5.0 seems to be wrong in detecting zero-terminzted string

Question

The following code:

    class Program
    {
        static void Main(string[] args)
        {
            const string s = "abc";
            const string sz = "abc\0";

            void Report(string str) 
                => Console.WriteLine($"\"{str}\" ({str.Length}), zero-terminated: {str.EndsWith("\0")}");

            Report(s);
            Report(sz);
        }
    }

gives the following output for target framework .net 5.0:

"abc" (3), zero-terminated: True
"abc" (4), zero-terminated: True

For target framework .netcoreapp3.1 the code outputs the following lines:

"abc" (3), zero-terminated: False
"abc" (4), zero-terminated: True

As for me, .net core 3.1 behavior looks correct and .net 5.0 does not.

I am wondering what is the reason for such radical code behavior modification in .net 5.0?

Thanks,

Anatoli

Answer 1

But that is not about FW 4.7.2, that is about .NET 5.0

Yes, of course. That's obvious.

The point of my reply is that the earlier versions of .NET give
the expected results.

So I suggest you use the "Send Feedback->Report a Problem"
link form the VS Help menu to report your findings.

• Wayne