__has_side_effects

[Nicholas Wilson]

On Saturday, 31 March 2018 at 20:44:13 UTC, Andrei Alexandrescu 
wrote:
> Yah, only strongly pure functions would qualify. Indeed that's 
> easy for the compiler to figure - so I'm thinking 
> pragma(isStronglyPure, expression) would be easy to define.
>
> What would be some good uses of this?
>
>
> Andrei

Surely you mean __traits(isStronglyPure, expression)?