[Boost-users] multi_array of triangular_matrices runtime error

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, 4ul, std::allocator, boost::numeric::ublas::unbounded_array

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, T = boost::numeric::ublas::triangular_matrix, boost::numeric::ublas::unbounded_arraynum_dimensions(),

Hello, I just noticed a strange runtime error, and I think that it should be addressed by the developers. Consider the following seemingly equivalent statements, in terms of functionality: using namespace boost::numeric::ublas; using namespace boost::multi_array; const unsigned A_dim = 4; multi_array , A_dim>::extent_gen extents; 1) multi_array , A_dim> A(extents[2][2][2][2]); 2) multi_array , A_dim> A; A = multi_array , A_dim>(extents[2][2][2][2]); Add either statement 1 or 2. Both compile just fine with GCC 4.4, but the second statement, last line, produces a runtime error: main: /usr/local/boost/include/boost/multi_array/multi_array_ref.hpp:487: boost::multi_array_ref& boost::multi_array_ref::operator=(const ConstMultiArray&) [with ConstMultiArray = boost::multi_array, boost::numeric::ublas::unbounded_arrayshape())' failed. I KNOW that I can resolve the issue with shared_ptr, having multi_array store shared pointers to the matrix A. However, if I understand correctly, then shouldn't the second statement either not compile or compile and work fine? From what I understand the added functionality of multi_arrays is that they can store other arrays, maybe I'm wrong? Thanks, Max