std.functional.memoize : thread local or __gshared memoization?

[Kagamin via Digitalmars-d]

On Saturday, 27 May 2017 at 10:02:35 UTC, Jonathan M Davis wrote:
> Actually, not so much, because in D, most variables are _not_ 
> shared across threads (unlike in C).

If you don't share data, you don't need to worry how to share 
data. But if you do, D supports C model.

> The compiler is free to assume that if a variable is not marked 
> as shared, it's thread-local, and it can optimize accordingly.

Just like in C.

> Using __gshared on anything other than C globals is just 
> begging for trouble.

Just like in C.

> As such, I'd strongly argue that using __gshared with anything 
> other than actual C globals is a serious code smell, and it's a 
> practice that should be actively discouraged.

You can't just discourage to write code. What to do instead, open 
a bakery?