[omniORB] problems with Matrix

[Tomás Dias Almeida]

Hello !
I have defined a structure Image containing a matrix. But the client doesn't
work.
There is an error message: " terminate called after throwing an instance of
'CORBA::BAD_PARAM' "
and I think the problem is the initialization of the matrix:

Image img;
img.m[0][0] = (CORBA::Octet) 6;
...
img.m[2][2] = (CORBA::Octet) 6;
img.nbl = 3;
img.nbc = 3;

---- file.idl
typedef sequence<sequence<octet> > Matrix;
struct Image{
Matrix m;
short _nbc;
short _nbl;
};

Please help me, where can i find a solution ?

[]'s

===============================
Tom?s Dias ALMEIDA
***@gmail.com
===============================
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[Clarke Brunt]

Post by Tomás Dias Almeida
I have defined a structure Image containing a matrix. But the client
doesn't work.
There is an error message: " terminate called after throwing an
instance of 'CORBA::BAD_PARAM' " and I think the problem is the
Image img;
img.m[0][0] = (CORBA::Octet) 6;
...
img.m[2][2] = (CORBA::Octet) 6;
img.nbl = 3;
img.nbc = 3;
---- file.idl
typedef sequence<sequence<octet> > Matrix;
struct Image{
Matrix m;
short _nbc;
short _nbl;
};
Please help me, where can i find a solution ?

You don't appear to have allocated any memory for the sequences. This could easily be wrong, as I haven't tried it, and have never used a 'sequence of sequences' myself, but I imagine you would need something like:

Image img;
img.length(2); // allocate two elements: you can now access img[0] and img[1]
img[0].length(2); // allocate length of sub-sequence
img[1].length(2); // needn't be the same length

Then fill in the elements as you were doing.

I suspect you might need to read up about the C++ binding for CORBA, as you will probably soon find other things that you won't know how to do.