Manifest constants (was const again)

[Janice Caron]

On 12/8/07, Walter Bright <newshound1 at digitalmars.com> wrote:
>      enum defname = "upload.log";
>      enum float fudge = 61.74;
>      enum char starter = 'r';
>      enum qwerty = 0xF4;

Just to be evil...
<EVIL>
I thought there was a principle that if something could be done with
templates then it shouldn't be a language feature?

    string defname()() { return "upload.log" };
    float fudge()() { return 61.74; }
    char starter()() { return 'r'; }
    ubyte qwerty()() { return 0xF4 }

Now...

    auto x = fudge;

should instantiate fudge!()(), then inline it, ultimately yielding
"auto x = 61.74;", but the other manifest constants won't be
instantiated, because they're never referenced.

:-)
</EVIL>