[text.encoding.aliases]

28 Text processing library [text]

28.4 Text encodings identification [text.encoding]

28.4.2 Class text_encoding [text.encoding.class]

28.4.2.5 Class text_encoding​::​aliases_view [text.encoding.aliases]

struct text_encoding::aliases_view : ranges::view_interface<text_encoding::aliases_view> { constexpr implementation-defined begin() const; constexpr implementation-defined end() const; };

Both ranges​::​range_value_t<text_encoding​::​aliases_view> and ranges​::​range_reference_t<text_encoding​::​aliases_view> denote const char*.