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Date: Sat, 20 Mar 2004 08:59:30 -0800
From: Kenneth Knowles <kknowles@berkeley.edu>
To: caml-list@inria.fr
Subject: [Caml-list] C binding advice
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Hi all,

I'm writing a binding to the freetds library, and I have the following dilemma,
which I am not sure of the best way to solve.  Data is retrieved from the
database by binding a buffer, and the buffer's contents change repeatedly.

char x[MAX_LEN];
int y;

bind(resultset, 1, &x, MAX_LEN)
bind(resultset, 2, &y, sizeof(int));

while( fetch(resultset) )
{
	/* use x and y in some code */
}

Is there a caml construct that is ideal for this bound buffer which continually
gets re-assigned?  I've seen it with strings, but I also need to do it for int32.
If noone has a better idea I may actually make an abstract type of "bound
pointers" from which strings or ints can be extracted in ocaml.

Any advice?

Kenn

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