Hi, I recently upgraded the boost version used four our project from boost 1.39 to boost 1.41 and encountered a very strange compilation error. I managed to reduce the problem to this minimal test case : ----------var.cc--------------- #include <boost/variant.hpp> #include <boost/graph/breadth_first_search.hpp> int main() { boost::variant<char, bool> v; boost::get<int>(v); } ---------------------------- This doesn't compile on Linux 64bits with gcc 4.4.2 20091208 and produces this error message : ----------------------------
In file included from /usr/include/boost/graph/graph_concepts.hpp:17, from /usr/include/boost/graph/breadth_first_search.hpp:21, from var.cc:2: /usr/include/boost/property_map/property_map.hpp: In instantiation of ‘boost::property_traits<int>’: /usr/include/boost/graph/two_bit_color_map.hpp:46: instantiated from ‘boost::two_bit_color_map<int>’ var.cc:8: instantiated from here /usr/include/boost/property_map/property_map.hpp:31: error: ‘int’ is not a class, struct, or union type /usr/include/boost/property_map/property_map.hpp:32: error: ‘int’ is not a class, struct, or union type /usr/include/boost/property_map/property_map.hpp:33: error: ‘int’ is not a class, struct, or union type /usr/include/boost/property_map/property_map.hpp:34: error: ‘int’ is not a class, struct, or union type
Could there be a conflict between boost.variant and boost.graph or did I miss something ? Thanks, -- Maxime