Function cbegin

src/include/nlohmann/json.hpp:2813–2818

@brief returns a const iterator to the first element @sa https://json.nlohmann.me/api/basic_json/cbegin/

    /// @brief returns a const iterator to the first element
    /// @sa https://json.nlohmann.me/api/basic_json/cbegin/
    const_iterator cbegin() const noexcept
    {
        const_iterator result(this);
        result.set_begin();
        return result;
    }

    /// @brief returns an iterator to one past the last element
    /// @sa https://json.nlohmann.me/api/basic_json/end/