On 4/9/14, 10:17 AM, Meta wrote:
On Wednesday, 9 April 2014 at 16:47:18 UTC, Andrei Alexandrescu wrote:
Very true. In hhvm, we tried an enum class to avoid bugs with using
wrong indices in a couple of specific arrays. There were so many
darned casts around, we had to revert the change.
There are many ways to get around this, such as user-defined function or
template, or a built-in .valueOf property.
template ValueOf(alias E)
if (is(typeof(E) == enum))
{
import std.traits: OriginalType;
enum OriginalType!(typeof(E)) ValueOf = E;
}
You can call this in a function for use with UFCS.
That was for C++, and a function vs. a cast didn't improve the
experience much. -- Andrei
