21 namespace seqan3::detail
36 template <
typename rng_t>
37 SEQAN3_CONCEPT debug_stream_range_guard =
53 template <std::ranges::range rng_t,
typename char_t>
54 constexpr
bool reference_type_is_streamable_v =
false;
57 template <std::ranges::range rng_t,
typename char_t>
58 requires requires (reference_t<rng_t> l, debug_stream_type<char_t> s) { { s << l }; }
59 constexpr
bool reference_type_is_streamable_v<rng_t, char_t> =
true;
87 template <std::ranges::input_range rng_t,
typename char_t>
90 requires detail::debug_stream_range_guard<rng_t>
93 static_assert(detail::reference_type_is_streamable_v<rng_t, char_t>,
94 "The reference type of the passed range cannot be streamed into the debug_stream.");