# Pastebin CZOG6o44
error: partial specialization of ‘struct boost::icl::type_to_string<Unary<Type> >’ after instantiation of ‘struct boost::icl::type_to_string<std::__cxx11::basic_string<char> >’ [-fpermissive]
     struct type_to_string<Unary<Type> >
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/opt/boost/1.64.0-gcc7.1.0/debug/boost/icl/type_traits/type_to_string.hpp:72:12: error: partial specialization of ‘struct boost::icl::type_to_string<Binary<Type1, Type2> >’ after instantiation of ‘struct boost::icl::type_to_string<std::__cxx11::basic_string<char> >’ [-fpermissive]
     struct type_to_string<Binary<Type1, Type2> >
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~