Method get_number_integer

3rd/json/include/nlohmann/json.hpp:6816–6819

return integer value

    /// return integer value
    constexpr number_integer_t get_number_integer() const noexcept
    {
        return value_integer;
    }

    /// return unsigned integer value
    constexpr number_unsigned_t get_number_unsigned() const noexcept