Page 277: EXERCISES 9-3 the prototype of the all function

[Chu66y8unny]

template <typename Fn, typename In, typename Out>
          constexpr bool all(Fn function, In* input, size_t length);

where typename Out should be removed?

[JLospinoso]

Thank you, @Chu66y8unny! Yes, it should be remove. I've added this to the Errata section.