source: buchla-68k/orig/GP/GPLISTS.H

/*
   =============================================================================
        gplists.h -- general purpose list function header
        Version 2 -- 1988-07-15 -- D.N. Lynx Crowe
   =============================================================================
*/

struct list_e {                 /* execution list entry */

        int     (*fn)();
        char    *arg;
};

struct list_1 {                 /* singly linked list entry */

        struct  list1   *link1;
        int     (*fn)();
        char    *arg;
};

struct list_2 {                 /* doubly linked list entry */

        struct  list2   *link1;
        struct  list2   *link2;
        int     (*fn)();
        char    *arg;
};