On 04/25/2010 02:10 PM, Robert Clipsham wrote:
On 25/04/10 19:15, Ellery Newcomer wrote:
Yeah, that's about what I do. The trouble is getting blit to know which
field is the length field. I suppose you could pass an index into the
tuple to the substructure. That still wouldn't fix the substructure
being able to modify the field length.
I don't know how the input data is formatted, but an array is always in
the form:
----
struct
{
size_t length;
void* ptr;
}
----
So it shouldn't be a problem knowing what offset to write the
length/elements at.
Hmm. Either I'm not understanding you or I didn't explain something clearly.
something like this
struct Rec2{
ushort index;
ushort nparams;
ushort options;
ushort[] params; // this has nparams elements
}
Rec2 rec2 = {index:1, nparams:2, options:~0, params:[4,5]};
would translate to something like
x"01 00 02 00 FF FF 04 00 05 00"
only the elements part of params gets written out, the length part doesn't.
