Function bindingIsLocked

inst/include/Rcpp/Environment.h:278–282

* @param name name of a potential binding * * @return true if the binding is locked in this environment * see ?bindingIsLocked * * @throw no_such_binding if there is no such binding in this environment */

         * @throw no_such_binding if there is no such binding in this environment
         */
        bool bindingIsLocked(const std::string& name) const{
            if( !exists( name) ) throw no_such_binding(name) ;
            SEXP nameSym = Rf_install(name.c_str());
            return R_BindingIsLocked(nameSym, Storage::get__() ) ;
        }

        /**
         *