Function scalar_value

include/boost/parser/detail/text/transcode_iterator.hpp:172–175

Returns true iff `c` is a valid Unicode scalar value. \see Unicode 3.9/D90 */

        \see Unicode 3.9/D90 */
    inline constexpr bool scalar_value(char32_t c)
    {
        return c <= 0x10ffff && !surrogate(c);
    }

    /** Returns true iff `c` is a Unicode scalar value not in the reserved
        range.