how does 'shared' affect member variables?

[anonymous via Digitalmars-d-learn]

On Saturday, 9 May 2015 at 19:59:58 UTC, tcak wrote:
> Stupidly, shared variables' value cannot be increased/decreased 
> directly. Compiler says it is deprecated, and tells me to use 
> core.atomic.atomicop. You will see this as well.

How's that stupid? Sounds like the compiler is doing its job 
guarding you from races.

> Hey compiler! I know 100% that no other thing will be touching 
> this variable.

Informing the compiler about this is done by casting shared away.