Function assert_simple_edge_chains

tools/MeshUtils/EdgeUtils.cpp:80–91

    }

    void assert_simple_edge_chains(
            const std::unordered_map<size_t, size_t>& valance) {
        for (auto item : valance) {
            if (item.second != 1 && item.second != 2) {
                std::stringstream err_msg;
                err_msg << "Complex edge loop detected!  ";
                err_msg << "Vertex " << item.first << " has valance " << item.second
                    << std::endl;
                throw RuntimeError(err_msg.str());
            }
        }
    }
}
using namespace EdgeUtilsHelper;