Re: Can someone please verify the execution trace of this?

olcott writes:

People are saying that they have no idea what this code does
because they do not believe it conforms to c11 or c17.
>
typedef int (*ptr)();  // ptr is pointer to int function
00 int H(ptr x, ptr y);
01 int D(ptr x)
02 {
03   int Halt_Status = H(x, x);
04   if (Halt_Status)
05     HERE: goto HERE;
06   return Halt_Status;
07 }
08
09 int main()
10 {
11   H(D,D);
12   return 0;
13 }

This does not conform to any version of C or C++. This looks like a weird  hybrid of C and BASIC, where each line of code is prepended with a numeric  line number.