Hello everyone, I'm getting an error when trying to get one sub array from a multi_array with 2 dimensions. This is the code: //at class constructor boost::multi_array<char, 2> array2d = new boost::multi_array<char, 2>(boost::extents[x][y]); ... //at class method boost::multi_array<char, 1> array1d = array2d[0]; And the error i got: Reference boost::detail::multi_array::value_accessor_n<T, NumDims>::access(boost::type<Reference>, boost::multi_array_types::index, TPtr, const boost::multi_array_types::size_type*, const boost::multi_array_types::index*, const boost::multi_array_types::index*) const [with Reference = boost::detail::multi_array::sub_array<char, 1u>, TPtr = char*, T = char, unsigned int NumDims = 2u]: Assertion `size_type(idx - index_bases[0]) < extents[0]' failed. Could anyone help, please? Thanx, -- Matheus Araújo Aguiar Computer Scientist matheus.pit@gmail.com