I had thought about that approach and it may be the way I go if the
prepare/step functionality does not work for what I need.
However, I only hesitate to do that because I would like to avoid copying the
data again to prepare it for transmission to the requestor.
Thanks for the insight.
Jonathan
--
Jonathan R. Haws
jh...@sdl.usu.edu
________________________________________
From: sqlite-users-boun...@sqlite.org [sqlite-users-boun...@sqlite.org] on
behalf of Drake Wilson [dr...@begriffli.ch]
Sent: Monday, December 06, 2010 16:15
To: General Discussion of SQLite Database
Subject: Re: [sqlite] Accessing multiple rows at once via a select statement
Quoth Jonathan Haws <jonathan.h...@sdl.usu.edu>, on 2010-12-06 22:51:16 +0000:
> As an argument to the callback, I pass the address of the array.
> However, I cannot change that address and have it persist through to
> the next call for the next row.
This isn't an SQLite problem; it's a C problem. You need to make a
C-style closure: function plus pointer to structure of persistent
data. Define:
struct write_closure {
mystructure *next;
};
or whatever, then put a struct write_closure on the stack and pass a
pointer to that. Then you can mutate the members of the closure
structure (in this case, have each callback invocation increment the
next-pointer).
---> Drake Wilson
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