SYNOPSIS
        mixed *order_alist(mixed *keys, mixed *|void data, ...)

DESCRIPTION
        Creates an alist.

        Either takes an array containing keys, and others containing
        the associated data, where all arrays are to be of the same
        length, or takes a single array that contains as first member
        the array of keys and has an arbitrary number of other members
        containing data, each of wich has to be of the same length as
        the key array. Returns an array holding the sorted key array
        and the data arrays; the same permutation that is applied to
        the key array is applied to all data arrays.

        Complexity is O(n * lg(n) + n * m), where n is the number of
        elements in the key array and m is the number of data arrays + 1.

        Note that the dimensions of the arrays are used the other
        way than in lisp to allow for faster searching.

        Keys have to be of type integer, string or object. Types can
        be mixed.

        The function is available only if the driver is compiled with
        alist support. In that case, __ALISTS__ is defined.

HISTORY
        LDMud 3.3 made this an optional efun.

SEE ALSO
        alists(LPC), mappings(LPC), insert_alist(E), assoc(E),
        transpose_array(E)