== `sqlite/row.hpp`

This type represents one row of data from a query.  Is a random-access range.

WARNING: This type is a pure view type, and will be invalidated when the next row is read.



[source,cpp]
----

struct row
{
    // The size of the row, i.e. number of colums
    std::size_t size() const;

    // Returns the field at `idx`, @throws std::out_of_range
        field at(std::size_t idx) const;
    // Returns the field at `idx`.
    field operator[](std::size_t idx) const;

    // Random access iterator used to iterate over the columns.
    struct const_iterator
    {
        using difference_type   = int;
        using reference         = field&;
        using iterator_category = std::random_access_iterator_tag;

        const_iterator & operator++();
        const_iterator operator++(int);
        const_iterator & operator--();
        const_iterator operator--(int);

        field operator[](int i) const;

        const_iterator operator+(int i) const;
        const_iterator operator-(int i) const;
        const_iterator & operator+=(int i);
        const_iterator & operator-=(int i);
        const field & operator*() const;
        const field * operator->() const;

        bool operator==(const const_iterator& other) const;
        bool operator!=(const const_iterator& other) const;
        bool operator<(const const_iterator& other) const;
        bool operator>(const const_iterator& other) const;

        const_iterator() = default;
    };
    // Returns the begin of the column-range.
    const_iterator begin() const;

    // Returns the end of the column-range.
    const_iterator end() const
};
----