{{alias}}( idx, max )
    Wraps an index on the interval `[0,max]`.

    Parameters
    ----------
    idx: integer
        Index to wrap.

    max: integer
        Maximum index value.

    Returns
    -------
    out: integer
        Wrapped index.

    Examples
    --------
    > var idx = {{alias}}( 2, 10 )
    2
    > idx = {{alias}}( -4, 10 )
    7
    > idx = {{alias}}( 13, 10 )
    2

    See Also
    --------