make diag (x, m, n) return a proper diagonal matrix object (bug #36099) * Array.h, Array.cc (Array<T>::diag (octave_idx_type, octave_idx_type) const): New function. * CMatrix.h, CMatrix.cc (ComplexMatrix::diag (octave_idx_type, octave_idx_type) const): New function. * dMatrix.h, dMatrix.cc (Matrix::diag (octave_idx_type, octave_idx_type) const): New function. * fCMatrix.h, fCMatrix.cc (FloatComplexMatrix::diag (octave_idx_type, octave_idx_type) const): New function. * fMatrix.h, fMatrix.cc (FloatMatrix::diag (octave_idx_type, octave_idx_type) const): New function. * CNDArray.cc, CNDArray.h (ComplexNDArray::diag (octave_idx_type, octave_idx_type) const): New forwarding function. * boolNDArray.cc, boolNDArray.h (boolNDArray::diag (octave_idx_type, octave_idx_type) const): New forwarding function. * chNDArray.cc, chNDArray.h (charNDArray::diag (octave_idx_type, octave_idx_type) const): New forwarding function. * dNDArray.cc, dNDArray.h (NDArray::diag (octave_idx_type, octave_idx_type) const): New forwarding function. * fCNDArray.cc, fCNDArray.h (FloatComplexNDArray::diag (octave_idx_type, octave_idx_type) const): New forwarding function. * fNDArray.cc, fNDArray.h (FloatNDArray::diag (octave_idx_type, octave_idx_type) const): New forwarding function. * intNDArray.cc, intNDArray.h (intNDArray<T>::diag (octave_idx_type, octave_idx_type) const): New forwarding function. * Cell.cc, Cell.h (Cell::diag (octave_idx_type, octave_idx_type) const): New function. * ov.h (octave_value::diag (octave_idx_type, octave_idx_type)): New function. * ov-base.h, ov-base.cc (octave_base_value::diag (octave_idx_type, octave_idx_type) const): New virtual function and default implementation. * ov-base-mat.h (octave_base_matrix<T>::diag (octave_idx_type, octave_idx_type) const): New function. * ov-base-scalar.cc, ov-base-scalar.h (octave_base_scalar<T>::diag (octave_idx_type, octave_idx_type)): New function. * ov-complex.cc, ov-complex.h (octave_complex::diag (octave_idx_type, octave_idx_type) const): New function. * ov-cx-mat.cc, ov-complex.h (octave_complex_matrix::diag (octave_idx_type, octave_idx_type) const): New function. * ov-float.cc, ov-float.h (octave_float_scalar::diag (octave_idx_type, octave_idx_type) const): New function. * ov-flt-complex.cc, ov-flt-complex.h (octave_float_complex::diag (octave_idx_type, octave_idx_type) const): New function. * ov-flt-cx-mat.cc, ov-flt-cx-mat.h (octave_float_complex_matrix::diag (octave_idx_type, octave_idx_type) const): New function. * ov-flt-re-mat.cc, ov-flt-re-mat.h (octave_float_matrix::diag (octave_idx_type, octave_idx_type) const): New function. * ov-range.cc, ov-range.h (octave_range::diag (octave_idx_type, octave_idx_type) const): New function. * ov-re-mat.cc, ov-re-mat.h (octave_matrix::diag (octave_idx_type, octave_idx_type) const): New function. * ov-scalar.cc, ov-scalar.h (octave_scalar::diag (octave_idx_type, octave_idx_type) const): New function. * data.cc (Fdiag): Use two-arg octave_value::diag method for dispatching. New tests.

--- a/src/ov.h	Thu Apr 12 14:08:29 2012 -0400
+++ b/src/ov.h	Thu Apr 12 16:27:39 2012 -0400
@@ -1075,6 +1075,9 @@
   octave_value diag (octave_idx_type k = 0) const
     { return rep->diag (k); }
 
+  octave_value diag (octave_idx_type m, octave_idx_type n) const
+    { return rep->diag (m, n); }
+
   octave_value sort (octave_idx_type dim = 0, sortmode mode = ASCENDING) const
     { return rep->sort (dim, mode); }
   octave_value sort (Array<octave_idx_type> &sidx, octave_idx_type dim = 0,