nice work !

i am very curious what exactly has changed from 2.008 to 2.009 regarding the const/invariant stuff. what has changed in the behaviour of const and why is there enum as another way to manifest a constant ?

where is the difference between
 invariant int x = 3;
or
 const int x = 3;
and
 enum int x = 3;
?


Walter Bright Wrote:

> New const/invariant/enum in 2.009!
> 
> http://www.digitalmars.com/d/1.0/changelog.html http://ftp.digitalmars.com/dmd.1.025.zip
> 
> http://www.digitalmars.com/d/changelog.html http://ftp.digitalmars.com/dmd.2.009.zip

On Sun, 13 Jan 2008 21:47:36 +0200, foobar <foobar@nomail.net> wrote:

> nice work !
>
> i am very curious what exactly has changed from 2.008 to 2.009 regarding the const/invariant stuff. what has changed in the behaviour of const and why is there enum as another way to manifest a constant ?
>
> where is the difference between
>  invariant int x = 3;
> or
>  const int x = 3;
> and
>  enum int x = 3;
> ?

Out of those three, here is only one way to declare a manifest constant - enum. The first two will take up space in the resulting binary.

Also, sock puppetry is not nice (if you did that on purpose).

-- 
Best regards,
 Vladimir                          mailto:thecybershadow@gmail.com

Vladimir Panteleev Wrote:

> On Sun, 13 Jan 2008 21:47:36 +0200, foobar <foobar@nomail.net> wrote:
> 
> > nice work !
> >
> > i am very curious what exactly has changed from 2.008 to 2.009 regarding the const/invariant stuff. what has changed in the behaviour of const and why is there enum as another way to manifest a constant ?
> >
> > where is the difference between
> >  invariant int x = 3;
> > or
> >  const int x = 3;
> > and
> >  enum int x = 3;
> > ?
> 
> Out of those three, here is only one way to declare a manifest constant - enum. The first two will take up space in the resulting binary.
> 
> Also, sock puppetry is not nice (if you did that on purpose).

i am very sorry but i am not native in english and i really dont know what sock puppetry is. can explain that ?