cost of calling class function

[Johan Engelen via Digitalmars-d]

On Wednesday, 22 February 2017 at 23:49:43 UTC, Dušan Pavkov 
wrote:
> 
> If the function is outside of class code runs much faster. I'm 
> obviously doing something wrong and would appreciate any help 
> with this.

Interesting test case, thanks :-)
Adding "final" to the class method nullifies the speed difference.
Somehow, LDC does not devirtualize the call in your testcase. 
Without the for-loops the call is nicely devirtualized, so no 
performance difference.

-Johan