prod of compressed_matrix exp fails in 1.4.2

[Peter Burka]

The following code worked in 1.4.1 but fails to compile in 1.4.2:

    viennacl::vector<double> v(rows);
    viennacl::compressed_matrix<double> M(rows, columns);
    viennacl::vector<double> k = viennacl::linalg::prod(trans(M), v);

The code compiles if compressed_matrix is replaced with matrix, or of the trans() is removed.

I'm using gcc 4.4.1.

[Karl Rupp]

Hi,

this is intentional: In earlier versions, the code compiled, but leads to a runtime error because the operation is not supported. The new behavior is to force a compilation error to notify library users as early as possible.

Best regards,
Karli

[Peter Burka]

Ah - I'd misunderstood what you meant when you said it would be fixed in the next release.