The problem that took him 5 years to fix in C++, I solved in a minute with D

[Steven Schveighoffer]

On 3/9/22 9:01 PM, matheus wrote:
> Hi,
> 
> Today someone sent me this video: https://www.youtube.com/embed/ABg4_EV5L3w
> (C++ Weekly - Ep 313 - The `constexpr` Problem That Took Me 5 Years To 
> Fix!).
> 
> It's a 26 minute long video of a guy trying to generate a concatenated 
> string during CT in C++.
> 
> I was flabbergasted by the problems this poor guy had in front of him 
> for a thing that shouldn't seem so complex (In my opinion of course). 
> And more yet that he has being struggling with this for 5 years.
> 
> So I decided to try the same with D, it was 14 lines[1] of code written 
> in less than a minute and it just worked on the first try.

Watched a bunch of this video, and one thing that has stuck out to me -- 
the compiler is complaining about destructors.

One of the "side effects" of D having a builtin GC is that it perfectly 
fits the requirements of memory allocation at compile time as well. The 
heap is abstracted behind a different set of primitives, and apparently 
C++ cannot figure this out because they need to worry about 
destruction/free!

Am I reading this wrong?

-Steve