Dear all, The following is a short example: ==================================================== #include #include #include #include <iostream> int main() { boost::numeric::ublas::matrix<int> m(1, 2); std::cout << boost::size(column(m, 0)) << "\n"; std::cout << boost::size(column(m, 0) | boost::adaptors::reversed) << "\n"; return 0; } ==================================================== BOOST 1.59 VS 2015 outputs: 1 2147483649 CLANG on coliru outputs: 1 9223372036854775809 g++ on coliru outputs: 1 9223372036854775809