Hello.
I'm quite new to this "d"-thing, but it seems very interesting and i think i
will use it, if i can clear a few things up. I have, based on the reading i
have done, made the following assumptions, please correct me where i'm
wrong.

1. D can link to C libraries. The standard c library have been wrapped(all
functions redeclared with "extern (C) ...") in std.c.xxx-modules, so we can
use them easily.

2. I cannot use functions from a c library unless i have declared them as extern (C) in my D source code. Structures in the c library that i want to use in my code have to be declared in my D code.

Anders Runesson wrote:
> Hello.
> I'm quite new to this "d"-thing, but it seems very interesting and i think i
> will use it, if i can clear a few things up. I have, based on the reading i
> have done, made the following assumptions, please correct me where i'm
> wrong. 
> 
> 1. D can link to C libraries. The standard c library have been wrapped(all
> functions redeclared with "extern (C) ...") in std.c.xxx-modules, so we can
> use them easily. 

Correct.
> 
> 2. I cannot use functions from a c library unless i have declared them as
> extern (C) in my D source code. Structures in the c library that i want to
> use in my code have to be declared in my D code.

That's correct, too.
How should the compiler know about the functions and structures if you don't do that?

Stephan

"Anders Runesson" <arson@disoriented.org> wrote in message news:c9d1qt$6es$1@digitaldaemon.com...
> Hello.
> I'm quite new to this "d"-thing, but it seems very interesting and i think
i
> will use it, if i can clear a few things up. I have, based on the reading
i
> have done, made the following assumptions, please correct me where i'm wrong.
>
> 1. D can link to C libraries. The standard c library have been wrapped(all
> functions redeclared with "extern (C) ...") in std.c.xxx-modules, so we
can
> use them easily.
>
> 2. I cannot use functions from a c library unless i have declared them as extern (C) in my D source code. Structures in the c library that i want to use in my code have to be declared in my D code.

Both assumptions are correct.