Why is std.math slower than the C baseline?

[Stefan Koch]

On Thursday, 4 June 2020 at 14:14:22 UTC, Andrei Alexandrescu 
wrote:
> D should just use the C functions when they offer better speed.
>
> https://www.reddit.com/r/programming/comments/gvuy59/a_look_at_chapel_d_and_julia_using_kernel_matrix/fsr4w5o/

Don won't like that.
IIRC he spent some time making them behave properly.
Wheres the C ones are a bit more liberal ....

But he'll have to comment on that.