1. C struct
- Posted by tone.skoda at gmx.net
Jun 17, 2002
Did I wrap this C structure right. I get Windows error when trying to use
function from
dll.
MAXP = 5
typedef struct node {
char name[8];
struct node *parm[MAXP];
short tag;
double value;
short sx,sy; /* size */
short px,py; /* location on scrn */
short ay; /* adjust y */
short kind;
short nump;
char *msg;
struct node *next;
} node;
node_name = allot( {8, Strz} ),
node_parm = allot( {MAXP * 4, Strz} ),
node_tag = allot( Word ),
node_value = allot( DWord ),
node_sx = allot( Word ),
node_sy = allot( Word ),
node_px = allot( Word ),
node_py = allot( Word ),
node_ay = allot( Word ),
node_kind = allot( Word ),
node_nump = allot( Word ),
node_msg = allot( Lpsz ),
node_next = allot( Ptr ),
sizeof_node = allotted_size(),
2. Re: C struct
<html>
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*parm[MAXP] is an array of pointers with MAXP elements. The [] has precendence
over *<br>
<br>
Derek Parnell wrote:<br>
<blockquote type="cite" cite="mid:0.1700008810.319761465-1463792126-1024361351
at topica.com">
<pre wrap="">-----Original Message-----<br>From: Derek Parnell <br>Sent:
Tuesday, 18 June 2002 10:37<br>To: EUforum<br>Subject: RE: C
struct<br><br><br><br> node_parm = allot(Ptr), -- struct node *parm[MAXP]
means <br>a pointer to an array of MAXP node structures.<br></pre>
</blockquote>
<pre wrap=""><!----><br>Or am I wrong with this one? Maybe it should be
...<br><br> node_parm = allot({MAXP, Ptr}), <br><br>I'm unsure now if <br>
struct node *parm[MAXP] <br>means a single pointer to MAXP node
structures<br><br>or MAXP pointers to node structures.<br><br>Sorry. But I don't
have a C manual handy at the
moment.<br><br><br>-----------<br>Derek.<br><br>==================================================================<br>De
informatie opgenomen in dit bericht kan vertrouwelijk zijn en <br>is uitsluitend
bestemd voor de geadresseerde. Indien u dit bericht <br>onterecht ontvangt wordt
u verzocht de inhoud niet te gebruiken en <br>de afzender direct te informeren
door het bericht te retourneren.
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3. Re: C struct
- Posted by tone.skoda at gmx.net
Jun 18, 2002
----- Original Message -----
From: "Derek Parnell" <Derek.Parnell at SYD.RABOBANK.COM>
> node_parm = allot({MAXP, Ptr}),
How do I store() to node_parm[3]?
The only way, it seems to me, is this way:
tmp = node_parm
tmp [1] += 4*2
store (p, tmp, val)
