• Robert (14/14) Jun 03 2010 Hi, is there a similar construct like a _based pointer in D?
• bearophile (6/7) Jun 04 2010 This is a cute feature, more docs here:
• =?iso-8859-1?Q?Robert_M._M=FCnch?= (7/11) Jun 05 2010 Thanks for the hint using structs and the operator stuff. I will

Robert <robert.muench robertmuench.de> writes:

Hi, is there a similar construct like a _based pointer in D?

type __based( base ) declarator

void *vpBuffer;

struct llist_t
{
    void __based( vpBuffer ) *vpData;
    struct llist_t __based( vpBuffer ) *llNext;
};

The pointer vpBuffer is assigned the address of memory allocated at 
some later point in the program. The linked list is relocated relative 
to the value of vpBuffer.
-- 
Robert M. Münch
http://www.robertmuench.de

bearophile <bearophileHUGS lycos.com> writes:

Robert:
 Hi, is there a similar construct like a _based pointer in D?

This is a cute feature, more docs here:
http://msdn.microsoft.com/en-us/library/57a97k4e.aspx

D doesn't have this feature, but you can try to implement it using a struct
that defines opUnary!("*") and more. If your implementation comes out nicely
and you are willing to share your code, then maybe Andrei can add it to Phobos2.

Bye,
bearophile

=?iso-8859-1?Q?Robert_M._M=FCnch?= <robert.muench robertmuench.de> writes:

On 2010-06-05 03:12:58 +0200, bearophile said:

 D doesn't have this feature, but you can try to implement it using a 
 struct that defines opUnary!("*") and more. If your implementation 
 comes out nicely and you are willing to share your code, then maybe 
 Andrei can add it to Phobos2.

Thanks for the hint using structs and the operator stuff. I will 
definetly look into it and share my stuff. I will need something like 
this in conjunction with memory-mapped-files.

-- 
Robert M. Münch
http://www.robertmuench.de