Method array_index

3rd/json/include/nlohmann/json.hpp:8739–8751

! @param[in] s reference token to be converted into an array index @return integer representation of @a s @throw out_of_range.404 if string @a s could not be converted to an integer */

    @throw out_of_range.404 if string @a s could not be converted to an integer
    */
    static int array_index(const std::string& s)
    {
        std::size_t processed_chars = 0;
        const int res = std::stoi(s, &processed_chars);

        // check if the string was completely read
        if (JSON_UNLIKELY(processed_chars != s.size()))
        {
            JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'"));
        }

        return res;
    }

    json_pointer top() const
    {