fix is_streamable trait

This commit is contained in:
Mike Zozu 2020-12-15 21:59:52 +03:00
parent 69c2cada35
commit 51dd98f49d

View File

@ -73,7 +73,7 @@ struct is_streamable : std::false_type {};
template <typename T> template <typename T>
struct is_streamable< struct is_streamable<
T, std::void_t<decltype(std::declval<std::ostream>() << std::declval<T>())>> T, std::void_t<decltype(std::declval<std::ostream&>() << std::declval<T>())>>
: std::true_type {}; : std::true_type {};
template <typename T> template <typename T>