On Sunday, 15 January 2017 at 14:33:25 UTC, Nordlöw wrote:
A call to `isRef!T` inside the function `f` is always `false` for `l-value` and `r-value` passing.
According to https://dlang.org/spec/template.html#auto-ref-parameters, it should be `__traits(isRef, x)`.
