static class

[Steven Schveighoffer]

On Sun, 17 Feb 2013 17:00:19 -0500, Michael <pr at m1xa.com> wrote:

>
>> That's not the meaning of static in that context.
> As I understand a static class can't be instantiated.

Static in that position is a no-op.  The compiler (infuriatingly  
sometimes) accepts attributes that have no meaning silently.

> So in mine case if I want purely static class I need to use:
>
> static Test
> {
>    static void foo();
> }

A class that can't be instantiated has a private constructor.  In  
addition, if you want to make all the functions static, in D you can  
either put them in a static scope, or use the colon:

class Test
{
    private this() {}; // will never be instantiatable
    static: // all members after this will be static.  Could also use  
static { ... }

    void foo(); // a static function
    int x; // a static variable
}

-Steve