From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Ryan McConnehey Sent: 12 September 2010 07:37 To: Boost-users Subject: [Boost-users] [multi-array] Extracting dimension information from a multi-array I'm trying to extract dimension information from a boost multi-array. The documentation gives the following short example. typedef boost::multi_array<double, 3> array_type; typedef array_type::index index; array_type A(boost::extents[3][4][2]); // Assign values to the elements int values = 0; for(index i = 0; i != 3; ++i) for(index j = 0; j != 4; ++j) for(index k = 0; k != 2; ++k) A[i][j][k] = values++; This is okay if you know the dimension information. Most of the time, though, you don't want to hard code the dimensions into your loop. The multi_array::dimensionality specifies the dimensions of the array. How do I find the max elements of each dimension? Ryan _____ I believe the shape() member function is what you're looking for,