On Sunday, 10 January 2021 at 17:28:42 UTC, kdevel wrote: > On Sunday, 10 January 2021 at 16:44:29 UTC, Paul Backus wrote: > > [...] > >> Your opCast has the wrong signature. > > "Wrong" in what respect? > It does not match the signature required by the language spec: https://dlang.org/spec/operatoroverloading.html#cast