https://issues.dlang.org/show_bug.cgi?id=12597
--- Comment #7 from bearophile_h...@eml.cc --- (In reply to Andrej Mitrovic from comment #5) > there are plenty of people on IRC that keep asking about it > though, I typically don't recommend them to use Typedef since it's full of > bugs. While not strictly necessary, something like typedef/Typedef is sometimes useful. In Haskell there's a built-in way to do it, using "newtype", and the GHC compiler has one or more non-standard extensions (GeneralizedNewtypeDeriving) to improve the use of newtype. (In reply to Andrej Mitrovic from comment #6) > You seem to have filed https://issues.dlang.org/show_bug.cgi?id=11706 > before, maybe we should just implement that instead? Then the cast would be > safe. The need to find the underlying type and the underlying value are both present. So I think we need both enhancements. (I have also just added a note to Issue 11706 ). If you want to implement only one of the two, then I suggest to implement a way to get the underlying value, because then getting the type is one typedef away. --
