Their implementation in D seems unclear to me.
On one hand, they are allowed - at least in alpha:

    int function(int n);    // works!

On other hand, they don't serve any practical meaning -
D doesn't need them anyhow, and there is no way
to define a body once the prototype was declared:

    int function(int n) { }    // symbol conflict

So what are they for?

"Pavel Minayev" <evilone@omen.ru> wrote in message news:9vgete$138v$1@digitaldaemon.com...
> Their implementation in D seems unclear to me.
> On one hand, they are allowed - at least in alpha:
>
>     int function(int n);    // works!
>
> On other hand, they don't serve any practical meaning -
> D doesn't need them anyhow, and there is no way
> to define a body once the prototype was declared:
>
>     int function(int n) { }    // symbol conflict
>
> So what are they for?

They're for if you really do want to create a library with a hidden implementation of the functions. The way to do it would be make a copy of the module, and delete the function bodies.