...S` in `is(T == S[0])`. The error message improves after adding the `!` in `isAmong...

...the error message:

(master) Notes > dmd recursive_template.d
recursive_template.d(9): Error: circular...

...body,

That method can display an intelligible error message if there is only one template...

The error tells you what you can't do. You can do anything other than...

...message passing could be used. However, the problem is that I get the following error...

...The error message is missing the key `const` modifier for `this`:

foo.d(9): Error...

https://issues.dlang.org/show_bug.cgi?id=17374

hsteoh@quickfur.ath.cx changed:

           What...

https://issues.dlang.org/show_bug.cgi?id=17374

Steven Schveighoffer <schveiguy@gmail.com> changed...

...7 // 111
7 // 111
3 // 11
[no error message]
```

instead of:

```
3 // 11
3 // 11...

The wording of the error message

~~~d
void main () // bi.d
{
   byte b = 257;
}

$ dmd...