Re: std.conv: conversion from ulong to enum

[Andrei Alexandrescu]

On 8/22/13 5:00 PM, Andrei Alexandrescu wrote:

On 8/22/13 3:48 PM, Matej Nanut wrote:

Hi everyone,

I hope I'm not misunderstanding the spec when this won't compile:

---
import std.conv;
enum Test { a = 0 }
void main() {
     ulong l = 0;
     auto t = l.to!Test;
}
---

It doesn't compile due to the template not instantiating.

If l is an int, uint or byte, it compiles fine.  I'm assuming the fault
lies in the ‘is(S : OriginalType!T)’ constraint.

So, um, is this intended behaviour?  And why are string enums not
supported? Wouldn't the ‘==’ operator work just fine on them too (so the
function body would stay the same)?

Thanks,
Matej

Hrm, that's a bug. Could you please submit to d.puremagic.com/issues?

Thanks,

Andrei

Never mind, I see we track it already.

Andrei