problem creating a berkeley db binding

[Mike Parker]

JT wrote:
> i'm trying to create a binding for berkeley db dll and quickly ran into some problems, how do i translate statement below.
> 
> int DB->open(DB *db, DB_TXN *txnid, const char *file,
>     const char *database, DBTYPE type, u_int32_t flags, int mode);
> 
> my normal approach would be,
> 
> extern (C) {
> 	int function(DB* db, DB_TXN* txnid, char* file, char* database, DBTYPE type, u_int32_t flags, int mode) DB->open;
> }
> 
> but real problem is 'DB->open', can anoybody suggest a workaround for this. DB is just a simple struct (struct DB;)

The function name is not 'DB->open'. That's something used in the 
comments. Nearly all functions in Berkeley DB are declared as function 
pointers used as struct fields. So what you'll want is something like this:

extern(C):

struct DB
{
     int function(DB* db, DB_TXN* txnid, char* file, char* database, 
DBTYPE type, u_int32_t flags, int mode) open;
}

Along with all of the rest of the DB function pointers and the numerous 
inner structs declared in the C headers.