That too, but I rather meant predeclared named types. According to Go specification, types that you define with "type Name OldName" are named, but "int", "strin

That too, but I rather meant predeclared named types. According to Go specification, types that you define with "type Name OldName" are named, but "int", "string" and the rest are named too. Go disallows declaring methods on predeclared types. https://golang.org/ref/spec#Types https://golang.org/ref/spec#Types